./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9f23cfa62b71a2e5a51fffc3a30328961f014d6aa87a85f8537d47b2cd2ac62e --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:34:32,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:34:32,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:34:32,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:34:32,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:34:32,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:34:32,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:34:32,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:34:32,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:34:32,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:34:32,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:34:32,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:34:32,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:34:32,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:34:32,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:34:32,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:34:32,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:34:32,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:34:32,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:34:32,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:34:32,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:34:32,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:34:32,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:34:32,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:34:32,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:34:32,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:34:32,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:34:32,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:34:32,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:34:32,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:34:32,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:34:32,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:34:32,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:34:32,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:34:32,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:34:32,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:34:32,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:34:32,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:34:32,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:34:32,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:34:32,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:34:32,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 23:34:32,912 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:34:32,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:34:32,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:34:32,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:34:32,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:34:32,913 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:34:32,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:34:32,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:34:32,913 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:34:32,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:34:32,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:34:32,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:34:32,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:34:32,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:34:32,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:34:32,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:34:32,914 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:34:32,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:34:32,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:34:32,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:34:32,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:34:32,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:34:32,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:34:32,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:34:32,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:34:32,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:34:32,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:34:32,916 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:34:32,916 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:34:32,916 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:34:32,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:34:32,916 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_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f23cfa62b71a2e5a51fffc3a30328961f014d6aa87a85f8537d47b2cd2ac62e [2021-12-06 23:34:33,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:34:33,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:34:33,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:34:33,112 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:34:33,113 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:34:33,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2021-12-06 23:34:33,154 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa/data/774cc8ac8/c0d0a4c7c44d4aabbb681d59d6b9b767/FLAG61c0b16c1 [2021-12-06 23:34:33,913 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:34:33,913 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2021-12-06 23:34:33,961 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa/data/774cc8ac8/c0d0a4c7c44d4aabbb681d59d6b9b767/FLAG61c0b16c1 [2021-12-06 23:34:34,184 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa/data/774cc8ac8/c0d0a4c7c44d4aabbb681d59d6b9b767 [2021-12-06 23:34:34,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:34:34,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:34:34,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:34:34,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:34:34,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:34:34,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:34:34" (1/1) ... [2021-12-06 23:34:34,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d82dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:34:34, skipping insertion in model container [2021-12-06 23:34:34,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:34:34" (1/1) ... [2021-12-06 23:34:34,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:34:34,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:34:41,348 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_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i[766015,766028] [2021-12-06 23:34:41,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:34:41,987 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:34:42,688 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_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i[766015,766028] [2021-12-06 23:34:42,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:34:43,022 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:34:43,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:34:43 WrapperNode [2021-12-06 23:34:43,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:34:43,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:34:43,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:34:43,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:34:43,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:34:43" (1/1) ... [2021-12-06 23:34:43,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:34:43" (1/1) ... [2021-12-06 23:34:43,482 INFO L137 Inliner]: procedures = 977, calls = 8058, calls flagged for inlining = 435, calls inlined = 368, statements flattened = 16935 [2021-12-06 23:34:43,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:34:43,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:34:43,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:34:43,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:34:43,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:34:43" (1/1) ... [2021-12-06 23:34:43,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:34:43" (1/1) ... [2021-12-06 23:34:43,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:34:43" (1/1) ... [2021-12-06 23:34:43,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:34:43" (1/1) ... [2021-12-06 23:34:43,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:34:43" (1/1) ... [2021-12-06 23:34:43,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:34:43" (1/1) ... [2021-12-06 23:34:43,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:34:43" (1/1) ... [2021-12-06 23:34:43,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:34:43,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:34:43,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:34:43,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:34:43,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:34:43" (1/1) ... [2021-12-06 23:34:43,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:34:43,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:34:43,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:34:43,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc5c3fe4-9838-4f45-802c-3b89f118c3b6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:34:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-06 23:34:43,898 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-06 23:34:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-12-06 23:34:43,898 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-12-06 23:34:43,898 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lockdep_current_cpu_online [2021-12-06 23:34:43,898 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lockdep_current_cpu_online [2021-12-06 23:34:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_txskb [2021-12-06 23:34:43,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_txskb [2021-12-06 23:34:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure s6_to_int [2021-12-06 23:34:43,899 INFO L138 BoogieDeclarations]: Found implementation of procedure s6_to_int [2021-12-06 23:34:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_urb_has_error [2021-12-06 23:34:43,899 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_urb_has_error [2021-12-06 23:34:43,899 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pad [2021-12-06 23:34:43,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pad [2021-12-06 23:34:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~X~~u8~0~TO~VOID [2021-12-06 23:34:43,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~X~~u8~0~TO~VOID [2021-12-06 23:34:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_set_ampdu_factor [2021-12-06 23:34:43,900 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_set_ampdu_factor [2021-12-06 23:34:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_vendor_req_mutex_of_mt7601u_dev [2021-12-06 23:34:43,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_vendor_req_mutex_of_mt7601u_dev [2021-12-06 23:34:43,900 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-06 23:34:43,900 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-06 23:34:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_clear [2021-12-06 23:34:43,901 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_clear [2021-12-06 23:34:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mt7601u_mcu [2021-12-06 23:34:43,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mt7601u_mcu [2021-12-06 23:34:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_hw_atomic_mutex_of_mt7601u_dev [2021-12-06 23:34:43,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_hw_atomic_mutex_of_mt7601u_dev [2021-12-06 23:34:43,901 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_rmw [2021-12-06 23:34:43,901 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_rmw [2021-12-06 23:34:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2021-12-06 23:34:43,902 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2021-12-06 23:34:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_rmw [2021-12-06 23:34:43,902 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_rmw [2021-12-06 23:34:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_reg_atomic_mutex_of_mt7601u_dev [2021-12-06 23:34:43,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_reg_atomic_mutex_of_mt7601u_dev [2021-12-06 23:34:43,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~TO~VOID [2021-12-06 23:34:43,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~TO~VOID [2021-12-06 23:34:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-12-06 23:34:43,903 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-12-06 23:34:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 23:34:43,903 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 23:34:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_bw_filter [2021-12-06 23:34:43,903 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_bw_filter [2021-12-06 23:34:43,903 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rmc [2021-12-06 23:34:43,903 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rmc [2021-12-06 23:34:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-06 23:34:43,904 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-06 23:34:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rmw [2021-12-06 23:34:43,904 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rmw [2021-12-06 23:34:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace___1 [2021-12-06 23:34:43,904 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace___1 [2021-12-06 23:34:43,904 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2021-12-06 23:34:43,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2021-12-06 23:34:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace___2 [2021-12-06 23:34:43,905 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace___2 [2021-12-06 23:34:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_add [2021-12-06 23:34:43,905 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_add [2021-12-06 23:34:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-06 23:34:43,905 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-06 23:34:43,905 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vendor_single_wr [2021-12-06 23:34:43,906 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vendor_single_wr [2021-12-06 23:34:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure trace_event_raw_init [2021-12-06 23:34:43,906 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_event_raw_init [2021-12-06 23:34:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_rts_threshold [2021-12-06 23:34:43,906 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_rts_threshold [2021-12-06 23:34:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 23:34:43,906 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-12-06 23:34:43,906 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-12-06 23:34:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_vendor_req_mutex_of_mt7601u_dev [2021-12-06 23:34:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_vendor_req_mutex_of_mt7601u_dev [2021-12-06 23:34:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2021-12-06 23:34:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2021-12-06 23:34:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_config [2021-12-06 23:34:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_config [2021-12-06 23:34:43,907 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_rr [2021-12-06 23:34:43,907 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_rr [2021-12-06 23:34:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_rr [2021-12-06 23:34:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_rr [2021-12-06 23:34:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure s6_validate [2021-12-06 23:34:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure s6_validate [2021-12-06 23:34:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-06 23:34:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-06 23:34:43,908 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_free_buf [2021-12-06 23:34:43,908 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_free_buf [2021-12-06 23:34:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 23:34:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:34:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure field_valid [2021-12-06 23:34:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure field_valid [2021-12-06 23:34:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-06 23:34:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-06 23:34:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 23:34:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 23:34:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure q2hwq [2021-12-06 23:34:43,910 INFO L138 BoogieDeclarations]: Found implementation of procedure q2hwq [2021-12-06 23:34:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2021-12-06 23:34:43,910 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2021-12-06 23:34:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work___0 [2021-12-06 23:34:43,910 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work___0 [2021-12-06 23:34:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-06 23:34:43,910 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-06 23:34:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-12-06 23:34:43,911 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-12-06 23:34:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-06 23:34:43,911 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-06 23:34:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_u32 [2021-12-06 23:34:43,911 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_u32 [2021-12-06 23:34:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure int_to_s6 [2021-12-06 23:34:43,911 INFO L138 BoogieDeclarations]: Found implementation of procedure int_to_s6 [2021-12-06 23:34:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_agc_default [2021-12-06 23:34:43,912 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_agc_default [2021-12-06 23:34:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_dma_cleanup [2021-12-06 23:34:43,912 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_dma_cleanup [2021-12-06 23:34:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2021-12-06 23:34:43,912 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2021-12-06 23:34:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_wr [2021-12-06 23:34:43,912 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_wr [2021-12-06 23:34:43,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mt7601u_dev [2021-12-06 23:34:43,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mt7601u_dev [2021-12-06 23:34:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-06 23:34:43,913 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-06 23:34:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_wr [2021-12-06 23:34:43,913 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_wr [2021-12-06 23:34:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-06 23:34:43,913 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-06 23:34:43,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:34:43,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:34:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-06 23:34:43,914 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-06 23:34:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 23:34:43,914 INFO L130 BoogieDeclarations]: Found specification of procedure trace_event_reg [2021-12-06 23:34:43,956 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_event_reg [2021-12-06 23:34:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-12-06 23:34:43,956 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-12-06 23:34:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_hw_atomic_mutex_of_mt7601u_dev [2021-12-06 23:34:43,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_hw_atomic_mutex_of_mt7601u_dev [2021-12-06 23:34:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-12-06 23:34:43,956 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-12-06 23:34:43,956 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-06 23:34:43,956 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-06 23:34:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-06 23:34:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_alloc_buf [2021-12-06 23:34:43,957 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_alloc_buf [2021-12-06 23:34:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2021-12-06 23:34:43,957 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2021-12-06 23:34:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-06 23:34:43,957 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-06 23:34:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-06 23:34:43,957 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-06 23:34:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 23:34:43,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 23:34:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-06 23:34:43,958 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-06 23:34:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 23:34:43,958 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 23:34:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_init_hardware [2021-12-06 23:34:43,958 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_init_hardware [2021-12-06 23:34:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-06 23:34:43,958 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-06 23:34:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_submit_rx_buf [2021-12-06 23:34:43,958 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_submit_rx_buf [2021-12-06 23:34:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2021-12-06 23:34:43,959 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2021-12-06 23:34:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-12-06 23:34:43,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-12-06 23:34:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 23:34:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-06 23:34:43,959 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-06 23:34:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-12-06 23:34:43,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-12-06 23:34:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 23:34:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure simple_attr_write [2021-12-06 23:34:43,960 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_attr_write [2021-12-06 23:34:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_remove_interface [2021-12-06 23:34:43,960 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_remove_interface [2021-12-06 23:34:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2021-12-06 23:34:43,960 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2021-12-06 23:34:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_2 [2021-12-06 23:34:43,960 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_2 [2021-12-06 23:34:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure trace_read_temp [2021-12-06 23:34:43,960 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_read_temp [2021-12-06 23:34:43,960 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_cmd_deinit [2021-12-06 23:34:43,960 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_cmd_deinit [2021-12-06 23:34:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-06 23:34:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-06 23:34:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-12-06 23:34:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-12-06 23:34:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure _ieee80211_hw_set [2021-12-06 23:34:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure _ieee80211_hw_set [2021-12-06 23:34:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-06 23:34:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-06 23:34:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_msg_alloc [2021-12-06 23:34:43,961 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_msg_alloc [2021-12-06 23:34:43,961 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-06 23:34:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-06 23:34:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-06 23:34:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-06 23:34:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vco_cal [2021-12-06 23:34:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vco_cal [2021-12-06 23:34:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mt7601u_mcu [2021-12-06 23:34:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mt7601u_mcu [2021-12-06 23:34:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-06 23:34:43,962 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-06 23:34:43,962 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___3 [2021-12-06 23:34:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___3 [2021-12-06 23:34:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___2 [2021-12-06 23:34:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___2 [2021-12-06 23:34:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___1 [2021-12-06 23:34:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___1 [2021-12-06 23:34:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___0 [2021-12-06 23:34:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___0 [2021-12-06 23:34:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~TO~VOID [2021-12-06 23:34:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u8~0~X~~u8~0~TO~VOID [2021-12-06 23:34:43,963 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held___4 [2021-12-06 23:34:43,963 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held___4 [2021-12-06 23:34:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-06 23:34:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-06 23:34:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2021-12-06 23:34:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2021-12-06 23:34:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rr [2021-12-06 23:34:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rr [2021-12-06 23:34:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 23:34:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 23:34:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-12-06 23:34:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-12-06 23:34:43,964 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_set_ctrlch [2021-12-06 23:34:43,965 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_set_ctrlch [2021-12-06 23:34:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-06 23:34:43,965 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-06 23:34:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 23:34:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_vendor_request [2021-12-06 23:34:43,965 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_vendor_request [2021-12-06 23:34:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_set [2021-12-06 23:34:43,965 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_set [2021-12-06 23:34:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mt7601u_dev [2021-12-06 23:34:43,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mt7601u_dev [2021-12-06 23:34:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 23:34:43,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 23:34:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_tx [2021-12-06 23:34:43,966 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_tx [2021-12-06 23:34:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_configure_filter [2021-12-06 23:34:43,966 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_configure_filter [2021-12-06 23:34:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wr [2021-12-06 23:34:43,966 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wr [2021-12-06 23:34:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure static_key_false [2021-12-06 23:34:43,966 INFO L138 BoogieDeclarations]: Found implementation of procedure static_key_false [2021-12-06 23:34:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2021-12-06 23:34:43,967 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2021-12-06 23:34:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_config_tsf [2021-12-06 23:34:43,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_config_tsf [2021-12-06 23:34:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2021-12-06 23:34:43,967 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2021-12-06 23:34:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_temp_comp [2021-12-06 23:34:43,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_temp_comp [2021-12-06 23:34:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rxdc_cal [2021-12-06 23:34:43,967 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rxdc_cal [2021-12-06 23:34:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure field_validate [2021-12-06 23:34:43,968 INFO L138 BoogieDeclarations]: Found implementation of procedure field_validate [2021-12-06 23:34:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2021-12-06 23:34:43,968 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2021-12-06 23:34:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_reg_atomic_mutex_of_mt7601u_dev [2021-12-06 23:34:43,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_reg_atomic_mutex_of_mt7601u_dev [2021-12-06 23:34:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_resume [2021-12-06 23:34:43,968 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_resume [2021-12-06 23:34:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2021-12-06 23:34:43,968 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2021-12-06 23:34:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-12-06 23:34:43,968 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-12-06 23:34:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-06 23:34:43,969 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-06 23:34:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 23:34:43,969 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 23:34:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2021-12-06 23:34:43,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2021-12-06 23:34:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-06 23:34:43,969 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-06 23:34:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-06 23:34:43,969 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-06 23:34:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 23:34:43,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 23:34:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_ampdu_action [2021-12-06 23:34:43,970 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_ampdu_action [2021-12-06 23:34:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-12-06 23:34:43,970 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-12-06 23:34:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_addr_wr [2021-12-06 23:34:43,970 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_addr_wr [2021-12-06 23:34:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_temp [2021-12-06 23:34:43,970 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_temp [2021-12-06 23:34:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_function_select [2021-12-06 23:34:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_function_select [2021-12-06 23:34:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2021-12-06 23:34:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2021-12-06 23:34:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_sta_rate_tbl_update [2021-12-06 23:34:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_sta_rate_tbl_update [2021-12-06 23:34:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_disconnect [2021-12-06 23:34:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_disconnect [2021-12-06 23:34:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2021-12-06 23:34:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2021-12-06 23:34:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_chip_onoff [2021-12-06 23:34:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_chip_onoff [2021-12-06 23:34:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_key [2021-12-06 23:34:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_key [2021-12-06 23:34:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 23:34:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 23:34:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock___0 [2021-12-06 23:34:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock___0 [2021-12-06 23:34:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace___2 [2021-12-06 23:34:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace___2 [2021-12-06 23:34:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace___1 [2021-12-06 23:34:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace___1 [2021-12-06 23:34:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2021-12-06 23:34:43,973 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2021-12-06 23:34:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_set_bw [2021-12-06 23:34:43,973 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_set_bw [2021-12-06 23:34:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_wcid_set_key [2021-12-06 23:34:43,973 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_wcid_set_key [2021-12-06 23:34:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 23:34:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_set_ctrlch [2021-12-06 23:34:43,973 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_set_ctrlch [2021-12-06 23:34:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 23:34:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_wr [2021-12-06 23:34:43,973 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_wr [2021-12-06 23:34:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure trace_raw_output_prep [2021-12-06 23:34:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_raw_output_prep [2021-12-06 23:34:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-06 23:34:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-06 23:34:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 23:34:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_efuse_read [2021-12-06 23:34:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_efuse_read [2021-12-06 23:34:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_cleanup [2021-12-06 23:34:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_cleanup [2021-12-06 23:34:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rf_rr [2021-12-06 23:34:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rf_rr [2021-12-06 23:34:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_queue_mapping [2021-12-06 23:34:43,975 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_queue_mapping [2021-12-06 23:34:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 23:34:43,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 23:34:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_tx_rate_val [2021-12-06 23:34:43,975 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_tx_rate_val [2021-12-06 23:34:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_pages [2021-12-06 23:34:43,975 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_pages [2021-12-06 23:34:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-06 23:34:43,975 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-06 23:34:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-06 23:34:43,975 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-06 23:34:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sw_scan_complete [2021-12-06 23:34:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sw_scan_complete [2021-12-06 23:34:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure trace_define_field [2021-12-06 23:34:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_define_field [2021-12-06 23:34:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put_le32 [2021-12-06 23:34:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put_le32 [2021-12-06 23:34:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-12-06 23:34:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-12-06 23:34:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wr_copy [2021-12-06 23:34:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wr_copy [2021-12-06 23:34:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_add_interface [2021-12-06 23:34:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_add_interface [2021-12-06 23:34:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-12-06 23:34:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-12-06 23:34:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_usb_submit_buf [2021-12-06 23:34:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_usb_submit_buf [2021-12-06 23:34:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-12-06 23:34:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-12-06 23:34:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_dma_fw [2021-12-06 23:34:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_dma_fw [2021-12-06 23:34:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-06 23:34:43,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-06 23:34:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-06 23:34:43,977 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-06 23:34:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-06 23:34:43,977 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-06 23:34:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-06 23:34:43,977 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-06 23:34:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-06 23:34:43,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-06 23:34:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure lin2dBd [2021-12-06 23:34:43,977 INFO L138 BoogieDeclarations]: Found implementation of procedure lin2dBd [2021-12-06 23:34:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 23:34:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 23:34:43,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 23:34:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-12-06 23:34:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-12-06 23:34:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-06 23:34:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-06 23:34:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_to_usb_dev [2021-12-06 23:34:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_to_usb_dev [2021-12-06 23:34:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bbp_r47_get [2021-12-06 23:34:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bbp_r47_get [2021-12-06 23:34:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_tx_stat [2021-12-06 23:34:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_tx_stat [2021-12-06 23:34:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_notify [2021-12-06 23:34:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_notify [2021-12-06 23:34:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-06 23:34:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-06 23:34:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-12-06 23:34:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-12-06 23:34:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_conf_tx [2021-12-06 23:34:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_conf_tx [2021-12-06 23:34:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-06 23:34:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-06 23:34:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 23:34:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 23:34:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure trace_handle_return [2021-12-06 23:34:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_handle_return [2021-12-06 23:34:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_hdrlen_from_skb [2021-12-06 23:34:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_hdrlen_from_skb [2021-12-06 23:34:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mac_wcid_setup [2021-12-06 23:34:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mac_wcid_setup [2021-12-06 23:34:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-12-06 23:34:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-12-06 23:34:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-06 23:34:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-06 23:34:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_burst_write_regs [2021-12-06 23:34:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_burst_write_regs [2021-12-06 23:34:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2021-12-06 23:34:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2021-12-06 23:34:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock___0 [2021-12-06 23:34:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock___0 [2021-12-06 23:34:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-12-06 23:34:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-12-06 23:34:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-12-06 23:34:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-12-06 23:34:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-12-06 23:34:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-12-06 23:34:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 23:34:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___1 [2021-12-06 23:34:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___1 [2021-12-06 23:34:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_write_reg_pairs [2021-12-06 23:34:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_write_reg_pairs [2021-12-06 23:34:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-06 23:34:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-06 23:34:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_mac_get_key_info [2021-12-06 23:34:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_mac_get_key_info [2021-12-06 23:34:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-06 23:34:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-06 23:34:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-12-06 23:34:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-12-06 23:34:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sta_remove [2021-12-06 23:34:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sta_remove [2021-12-06 23:34:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-06 23:34:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-06 23:34:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_bss_info_changed [2021-12-06 23:34:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_bss_info_changed [2021-12-06 23:34:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow [2021-12-06 23:34:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow [2021-12-06 23:34:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 23:34:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 23:34:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-12-06 23:34:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-12-06 23:34:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_wait_asic_ready [2021-12-06 23:34:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_wait_asic_ready [2021-12-06 23:34:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-06 23:34:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-12-06 23:34:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_sw_scan [2021-12-06 23:34:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_sw_scan [2021-12-06 23:34:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-06 23:34:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-06 23:34:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-06 23:34:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-06 23:34:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_calibrate [2021-12-06 23:34:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_calibrate [2021-12-06 23:34:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_mcu_msg_send [2021-12-06 23:34:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_mcu_msg_send [2021-12-06 23:34:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure firmware_running [2021-12-06 23:34:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure firmware_running [2021-12-06 23:34:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_rmw [2021-12-06 23:34:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_rmw [2021-12-06 23:34:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_poll [2021-12-06 23:34:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_poll [2021-12-06 23:34:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-06 23:34:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-06 23:34:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_set_power_rate [2021-12-06 23:34:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_set_power_rate [2021-12-06 23:34:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-06 23:34:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-06 23:34:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure mt7601u_has_tssi [2021-12-06 23:34:43,983 INFO L138 BoogieDeclarations]: Found implementation of procedure mt7601u_has_tssi [2021-12-06 23:34:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:34:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure mt76_poll_msec [2021-12-06 23:34:43,983 INFO L138 BoogieDeclarations]: Found implementation of procedure mt76_poll_msec [2021-12-06 23:34:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-12-06 23:34:43,983 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-12-06 23:34:44,833 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:34:44,837 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:34:44,986 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 23:35:13,091 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:35:13,119 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:35:13,119 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 23:35:13,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:35:13 BoogieIcfgContainer [2021-12-06 23:35:13,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:35:13,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:35:13,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:35:13,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:35:13,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:34:34" (1/3) ... [2021-12-06 23:35:13,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1468278a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:35:13, skipping insertion in model container [2021-12-06 23:35:13,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:34:43" (2/3) ... [2021-12-06 23:35:13,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1468278a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:35:13, skipping insertion in model container [2021-12-06 23:35:13,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:35:13" (3/3) ... [2021-12-06 23:35:13,133 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--mediatek--mt7601u--mt7601u.ko-entry_point.cil.out.i [2021-12-06 23:35:13,136 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:35:13,136 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 23:35:13,189 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:35:13,194 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 23:35:13,194 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 23:35:13,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 5411 states, 3638 states have (on average 1.3697086311159978) internal successors, (4983), 3802 states have internal predecessors, (4983), 1540 states have call successors, (1540), 232 states have call predecessors, (1540), 231 states have return successors, (1501), 1497 states have call predecessors, (1501), 1501 states have call successors, (1501) [2021-12-06 23:35:13,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 23:35:13,300 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:35:13,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:35:13,301 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:35:13,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:35:13,304 INFO L85 PathProgramCache]: Analyzing trace with hash -872272598, now seen corresponding path program 1 times [2021-12-06 23:35:13,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:35:13,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281388427] [2021-12-06 23:35:13,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:35:13,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:35:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:35:14,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:35:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:35:14,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:35:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:35:14,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:35:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:35:14,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:35:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:35:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:35:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:35:14,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:35:14,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:35:14,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281388427] [2021-12-06 23:35:14,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281388427] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:35:14,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:35:14,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:35:14,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602384012] [2021-12-06 23:35:14,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:35:14,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:35:14,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:35:14,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:35:14,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:35:14,215 INFO L87 Difference]: Start difference. First operand has 5411 states, 3638 states have (on average 1.3697086311159978) internal successors, (4983), 3802 states have internal predecessors, (4983), 1540 states have call successors, (1540), 232 states have call predecessors, (1540), 231 states have return successors, (1501), 1497 states have call predecessors, (1501), 1501 states have call successors, (1501) Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 23:35:16,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:35:17,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:35:18,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:35:25,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:35:27,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:35:31,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:35:35,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:35:42,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:35:52,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:35:54,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:35:56,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:35:58,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:35:59,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:36:03,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:36:03,058 INFO L93 Difference]: Finished difference Result 11897 states and 18958 transitions. [2021-12-06 23:36:03,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 23:36:03,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2021-12-06 23:36:03,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:36:03,131 INFO L225 Difference]: With dead ends: 11897 [2021-12-06 23:36:03,131 INFO L226 Difference]: Without dead ends: 6437 [2021-12-06 23:36:03,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:36:03,184 INFO L933 BasicCegarLoop]: 8425 mSDtfsCounter, 3622 mSDsluCounter, 11226 mSDsCounter, 0 mSdLazyCounter, 6183 mSolverCounterSat, 4023 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3821 SdHoareTripleChecker+Valid, 19651 SdHoareTripleChecker+Invalid, 10212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4023 IncrementalHoareTripleChecker+Valid, 6183 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:36:03,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3821 Valid, 19651 Invalid, 10212 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4023 Valid, 6183 Invalid, 6 Unknown, 0 Unchecked, 48.0s Time] [2021-12-06 23:36:03,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6437 states. [2021-12-06 23:36:03,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6437 to 5357. [2021-12-06 23:36:03,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5357 states, 3625 states have (on average 1.3572413793103448) internal successors, (4920), 3748 states have internal predecessors, (4920), 1501 states have call successors, (1501), 231 states have call predecessors, (1501), 230 states have return successors, (1483), 1479 states have call predecessors, (1483), 1483 states have call successors, (1483) [2021-12-06 23:36:03,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5357 states to 5357 states and 7904 transitions. [2021-12-06 23:36:03,528 INFO L78 Accepts]: Start accepts. Automaton has 5357 states and 7904 transitions. Word has length 69 [2021-12-06 23:36:03,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:36:03,529 INFO L470 AbstractCegarLoop]: Abstraction has 5357 states and 7904 transitions. [2021-12-06 23:36:03,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 23:36:03,529 INFO L276 IsEmpty]: Start isEmpty. Operand 5357 states and 7904 transitions. [2021-12-06 23:36:03,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-06 23:36:03,534 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:36:03,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:36:03,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:36:03,534 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:36:03,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:36:03,535 INFO L85 PathProgramCache]: Analyzing trace with hash -438543512, now seen corresponding path program 1 times [2021-12-06 23:36:03,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:36:03,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146450480] [2021-12-06 23:36:03,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:36:03,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:36:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:04,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:36:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:04,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:36:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:04,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:36:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:04,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:36:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:04,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:36:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:04,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:36:04,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:36:04,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146450480] [2021-12-06 23:36:04,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146450480] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:36:04,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:36:04,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:36:04,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946591484] [2021-12-06 23:36:04,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:36:04,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:36:04,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:36:04,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:36:04,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:36:04,196 INFO L87 Difference]: Start difference. First operand 5357 states and 7904 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 23:36:07,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:36:12,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:36:14,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:36:21,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:36:26,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:36:40,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:36:43,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:36:48,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:36:48,252 INFO L93 Difference]: Finished difference Result 18018 states and 27935 transitions. [2021-12-06 23:36:48,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:36:48,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2021-12-06 23:36:48,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:36:48,349 INFO L225 Difference]: With dead ends: 18018 [2021-12-06 23:36:48,349 INFO L226 Difference]: Without dead ends: 12672 [2021-12-06 23:36:48,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:36:48,378 INFO L933 BasicCegarLoop]: 10030 mSDtfsCounter, 17692 mSDsluCounter, 12197 mSDsCounter, 0 mSdLazyCounter, 6820 mSolverCounterSat, 13074 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18807 SdHoareTripleChecker+Valid, 22227 SdHoareTripleChecker+Invalid, 19899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13074 IncrementalHoareTripleChecker+Valid, 6820 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:36:48,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18807 Valid, 22227 Invalid, 19899 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13074 Valid, 6820 Invalid, 5 Unknown, 0 Unchecked, 43.0s Time] [2021-12-06 23:36:48,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12672 states. [2021-12-06 23:36:48,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12672 to 10510. [2021-12-06 23:36:48,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10510 states, 7119 states have (on average 1.3588987217305801) internal successors, (9674), 7349 states have internal predecessors, (9674), 2931 states have call successors, (2931), 459 states have call predecessors, (2931), 459 states have return successors, (2917), 2904 states have call predecessors, (2917), 2913 states have call successors, (2917) [2021-12-06 23:36:48,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10510 states to 10510 states and 15522 transitions. [2021-12-06 23:36:48,864 INFO L78 Accepts]: Start accepts. Automaton has 10510 states and 15522 transitions. Word has length 69 [2021-12-06 23:36:48,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:36:48,864 INFO L470 AbstractCegarLoop]: Abstraction has 10510 states and 15522 transitions. [2021-12-06 23:36:48,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-06 23:36:48,865 INFO L276 IsEmpty]: Start isEmpty. Operand 10510 states and 15522 transitions. [2021-12-06 23:36:48,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-06 23:36:48,869 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:36:48,869 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 23:36:48,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 23:36:48,869 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:36:48,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:36:48,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1429976943, now seen corresponding path program 1 times [2021-12-06 23:36:48,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:36:48,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994640918] [2021-12-06 23:36:48,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:36:48,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:36:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:49,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:36:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:49,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:36:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:49,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:36:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:49,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:36:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:49,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:36:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:49,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 23:36:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:49,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:36:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:49,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:36:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:36:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-06 23:36:49,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:36:49,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994640918] [2021-12-06 23:36:49,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994640918] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:36:49,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:36:49,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:36:49,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610094254] [2021-12-06 23:36:49,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:36:49,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:36:49,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:36:49,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:36:49,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:36:49,499 INFO L87 Difference]: Start difference. First operand 10510 states and 15522 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:36:51,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:36:53,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:00,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:04,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:07,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:13,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:26,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:28,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:30,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:34,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:37:34,583 INFO L93 Difference]: Finished difference Result 15289 states and 23966 transitions. [2021-12-06 23:37:34,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:37:34,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 88 [2021-12-06 23:37:34,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:37:34,666 INFO L225 Difference]: With dead ends: 15289 [2021-12-06 23:37:34,666 INFO L226 Difference]: Without dead ends: 15285 [2021-12-06 23:37:34,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:37:34,671 INFO L933 BasicCegarLoop]: 9364 mSDtfsCounter, 12365 mSDsluCounter, 10290 mSDsCounter, 0 mSdLazyCounter, 6729 mSolverCounterSat, 6548 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13388 SdHoareTripleChecker+Valid, 19654 SdHoareTripleChecker+Invalid, 13281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6548 IncrementalHoareTripleChecker+Valid, 6729 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:37:34,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13388 Valid, 19654 Invalid, 13281 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6548 Valid, 6729 Invalid, 4 Unknown, 0 Unchecked, 44.1s Time] [2021-12-06 23:37:34,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15285 states. [2021-12-06 23:37:35,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15285 to 12431. [2021-12-06 23:37:35,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12431 states, 8431 states have (on average 1.3595065828490096) internal successors, (11462), 8722 states have internal predecessors, (11462), 3404 states have call successors, (3404), 595 states have call predecessors, (3404), 595 states have return successors, (3392), 3377 states have call predecessors, (3392), 3388 states have call successors, (3392) [2021-12-06 23:37:35,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12431 states to 12431 states and 18258 transitions. [2021-12-06 23:37:35,247 INFO L78 Accepts]: Start accepts. Automaton has 12431 states and 18258 transitions. Word has length 88 [2021-12-06 23:37:35,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:37:35,247 INFO L470 AbstractCegarLoop]: Abstraction has 12431 states and 18258 transitions. [2021-12-06 23:37:35,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:37:35,248 INFO L276 IsEmpty]: Start isEmpty. Operand 12431 states and 18258 transitions. [2021-12-06 23:37:35,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-06 23:37:35,251 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:37:35,251 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 23:37:35,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 23:37:35,251 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:37:35,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:37:35,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1382114060, now seen corresponding path program 1 times [2021-12-06 23:37:35,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:37:35,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137763166] [2021-12-06 23:37:35,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:37:35,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:37:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:37:35,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:37:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:37:35,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:37:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:37:35,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:37:35,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:37:35,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:37:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:37:35,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:37:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:37:35,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 23:37:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:37:35,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:37:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:37:35,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:37:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:37:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-06 23:37:35,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:37:35,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137763166] [2021-12-06 23:37:35,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137763166] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:37:35,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:37:35,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:37:35,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560332494] [2021-12-06 23:37:35,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:37:35,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:37:35,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:37:35,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:37:35,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:37:35,792 INFO L87 Difference]: Start difference. First operand 12431 states and 18258 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:37:37,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:38,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:40,258 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:41,410 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:48,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:50,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:55,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:37:58,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:38:05,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:38:23,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:38:25,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:38:28,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:38:30,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:38:31,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:38:36,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:38:36,924 INFO L93 Difference]: Finished difference Result 15792 states and 24687 transitions. [2021-12-06 23:38:36,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:38:36,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 89 [2021-12-06 23:38:36,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:38:36,984 INFO L225 Difference]: With dead ends: 15792 [2021-12-06 23:38:36,984 INFO L226 Difference]: Without dead ends: 15789 [2021-12-06 23:38:36,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:38:36,993 INFO L933 BasicCegarLoop]: 9206 mSDtfsCounter, 12021 mSDsluCounter, 14118 mSDsCounter, 0 mSdLazyCounter, 8734 mSolverCounterSat, 6044 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13028 SdHoareTripleChecker+Valid, 23324 SdHoareTripleChecker+Invalid, 14785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6044 IncrementalHoareTripleChecker+Valid, 8734 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:38:36,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13028 Valid, 23324 Invalid, 14785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6044 Valid, 8734 Invalid, 7 Unknown, 0 Unchecked, 60.1s Time] [2021-12-06 23:38:37,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15789 states. [2021-12-06 23:38:37,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15789 to 12779. [2021-12-06 23:38:37,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12779 states, 8672 states have (on average 1.3592020295202951) internal successors, (11787), 8972 states have internal predecessors, (11787), 3476 states have call successors, (3476), 630 states have call predecessors, (3476), 630 states have return successors, (3465), 3450 states have call predecessors, (3465), 3461 states have call successors, (3465) [2021-12-06 23:38:37,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12779 states to 12779 states and 18728 transitions. [2021-12-06 23:38:37,498 INFO L78 Accepts]: Start accepts. Automaton has 12779 states and 18728 transitions. Word has length 89 [2021-12-06 23:38:37,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:38:37,498 INFO L470 AbstractCegarLoop]: Abstraction has 12779 states and 18728 transitions. [2021-12-06 23:38:37,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:38:37,498 INFO L276 IsEmpty]: Start isEmpty. Operand 12779 states and 18728 transitions. [2021-12-06 23:38:37,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-06 23:38:37,501 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:38:37,502 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 23:38:37,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 23:38:37,502 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:38:37,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:38:37,502 INFO L85 PathProgramCache]: Analyzing trace with hash 101640180, now seen corresponding path program 1 times [2021-12-06 23:38:37,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:38:37,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250109759] [2021-12-06 23:38:37,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:38:37,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:38:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:38:37,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:38:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:38:37,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:38:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:38:37,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:38:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:38:37,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:38:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:38:37,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:38:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:38:38,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 23:38:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:38:38,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:38:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:38:38,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:38:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:38:38,046 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-06 23:38:38,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:38:38,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250109759] [2021-12-06 23:38:38,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250109759] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:38:38,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:38:38,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:38:38,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456630931] [2021-12-06 23:38:38,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:38:38,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:38:38,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:38:38,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:38:38,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:38:38,048 INFO L87 Difference]: Start difference. First operand 12779 states and 18728 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:38:44,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:38:51,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:39:03,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:39:05,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:39:08,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:39:08,299 INFO L93 Difference]: Finished difference Result 15791 states and 24685 transitions. [2021-12-06 23:39:08,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:39:08,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 90 [2021-12-06 23:39:08,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:39:08,358 INFO L225 Difference]: With dead ends: 15791 [2021-12-06 23:39:08,358 INFO L226 Difference]: Without dead ends: 15788 [2021-12-06 23:39:08,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:39:08,366 INFO L933 BasicCegarLoop]: 9248 mSDtfsCounter, 14973 mSDsluCounter, 6742 mSDsCounter, 0 mSdLazyCounter, 4662 mSolverCounterSat, 8868 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15968 SdHoareTripleChecker+Valid, 15990 SdHoareTripleChecker+Invalid, 13533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8868 IncrementalHoareTripleChecker+Valid, 4662 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:39:08,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15968 Valid, 15990 Invalid, 13533 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8868 Valid, 4662 Invalid, 3 Unknown, 0 Unchecked, 29.3s Time] [2021-12-06 23:39:08,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15788 states. [2021-12-06 23:39:08,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15788 to 12778. [2021-12-06 23:39:08,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12778 states, 8672 states have (on average 1.3590867158671587) internal successors, (11786), 8971 states have internal predecessors, (11786), 3475 states have call successors, (3475), 630 states have call predecessors, (3475), 630 states have return successors, (3465), 3450 states have call predecessors, (3465), 3461 states have call successors, (3465) [2021-12-06 23:39:08,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12778 states to 12778 states and 18726 transitions. [2021-12-06 23:39:08,891 INFO L78 Accepts]: Start accepts. Automaton has 12778 states and 18726 transitions. Word has length 90 [2021-12-06 23:39:08,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:39:08,892 INFO L470 AbstractCegarLoop]: Abstraction has 12778 states and 18726 transitions. [2021-12-06 23:39:08,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:39:08,892 INFO L276 IsEmpty]: Start isEmpty. Operand 12778 states and 18726 transitions. [2021-12-06 23:39:08,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-06 23:39:08,895 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:39:08,895 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 23:39:08,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 23:39:08,895 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:39:08,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:39:08,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1146613769, now seen corresponding path program 1 times [2021-12-06 23:39:08,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:39:08,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132060823] [2021-12-06 23:39:08,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:39:08,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:39:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:39:09,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:39:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:39:09,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:39:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:39:09,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:39:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:39:09,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:39:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:39:09,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:39:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:39:09,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 23:39:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:39:09,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:39:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:39:09,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:39:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:39:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-06 23:39:09,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:39:09,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132060823] [2021-12-06 23:39:09,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132060823] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:39:09,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:39:09,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:39:09,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680890082] [2021-12-06 23:39:09,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:39:09,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:39:09,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:39:09,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:39:09,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:39:09,494 INFO L87 Difference]: Start difference. First operand 12778 states and 18726 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:39:20,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:39:22,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:39:24,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:39:29,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:39:37,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:39:53,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:39:55,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:39:57,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:40:00,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:40:02,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:40:04,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:40:09,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:40:09,055 INFO L93 Difference]: Finished difference Result 15790 states and 24683 transitions. [2021-12-06 23:40:09,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:40:09,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 91 [2021-12-06 23:40:09,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:40:09,107 INFO L225 Difference]: With dead ends: 15790 [2021-12-06 23:40:09,108 INFO L226 Difference]: Without dead ends: 15787 [2021-12-06 23:40:09,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:40:09,114 INFO L933 BasicCegarLoop]: 9210 mSDtfsCounter, 12016 mSDsluCounter, 14130 mSDsCounter, 0 mSdLazyCounter, 8729 mSolverCounterSat, 6047 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13012 SdHoareTripleChecker+Valid, 23340 SdHoareTripleChecker+Invalid, 14784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6047 IncrementalHoareTripleChecker+Valid, 8729 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.4s IncrementalHoareTripleChecker+Time [2021-12-06 23:40:09,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13012 Valid, 23340 Invalid, 14784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6047 Valid, 8729 Invalid, 8 Unknown, 0 Unchecked, 58.4s Time] [2021-12-06 23:40:09,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15787 states. [2021-12-06 23:40:09,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15787 to 12777. [2021-12-06 23:40:09,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12777 states, 8672 states have (on average 1.3589714022140222) internal successors, (11785), 8970 states have internal predecessors, (11785), 3474 states have call successors, (3474), 630 states have call predecessors, (3474), 630 states have return successors, (3465), 3450 states have call predecessors, (3465), 3461 states have call successors, (3465) [2021-12-06 23:40:09,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12777 states to 12777 states and 18724 transitions. [2021-12-06 23:40:09,655 INFO L78 Accepts]: Start accepts. Automaton has 12777 states and 18724 transitions. Word has length 91 [2021-12-06 23:40:09,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:40:09,656 INFO L470 AbstractCegarLoop]: Abstraction has 12777 states and 18724 transitions. [2021-12-06 23:40:09,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:40:09,656 INFO L276 IsEmpty]: Start isEmpty. Operand 12777 states and 18724 transitions. [2021-12-06 23:40:09,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-06 23:40:09,658 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:40:09,659 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 23:40:09,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 23:40:09,659 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:40:09,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:40:09,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1187775657, now seen corresponding path program 1 times [2021-12-06 23:40:09,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:40:09,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771097689] [2021-12-06 23:40:09,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:40:09,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:40:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:40:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:40:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:40:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:40:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:40:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 23:40:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:40:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:40:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:40:10,250 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-06 23:40:10,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:40:10,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771097689] [2021-12-06 23:40:10,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771097689] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:40:10,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:40:10,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:40:10,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389744073] [2021-12-06 23:40:10,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:40:10,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:40:10,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:40:10,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:40:10,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:40:10,251 INFO L87 Difference]: Start difference. First operand 12777 states and 18724 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:40:11,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:40:13,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:40:21,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:40:23,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:40:25,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:40:32,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:40:39,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:40:48,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:40:50,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:40:52,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:41:05,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:41:07,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:41:09,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:41:12,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:41:14,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:41:15,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:41:21,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:41:21,941 INFO L93 Difference]: Finished difference Result 19821 states and 30628 transitions. [2021-12-06 23:41:21,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:41:21,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 92 [2021-12-06 23:41:21,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:41:22,005 INFO L225 Difference]: With dead ends: 19821 [2021-12-06 23:41:22,005 INFO L226 Difference]: Without dead ends: 19817 [2021-12-06 23:41:22,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:41:22,013 INFO L933 BasicCegarLoop]: 9388 mSDtfsCounter, 11649 mSDsluCounter, 15061 mSDsCounter, 0 mSdLazyCounter, 9174 mSolverCounterSat, 6054 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12622 SdHoareTripleChecker+Valid, 24449 SdHoareTripleChecker+Invalid, 15240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6054 IncrementalHoareTripleChecker+Valid, 9174 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.3s IncrementalHoareTripleChecker+Time [2021-12-06 23:41:22,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12622 Valid, 24449 Invalid, 15240 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6054 Valid, 9174 Invalid, 12 Unknown, 0 Unchecked, 70.3s Time] [2021-12-06 23:41:22,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19817 states. [2021-12-06 23:41:22,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19817 to 15950. [2021-12-06 23:41:22,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15950 states, 10864 states have (on average 1.3599042709867453) internal successors, (14774), 11256 states have internal predecessors, (14774), 4232 states have call successors, (4232), 853 states have call predecessors, (4232), 853 states have return successors, (4225), 4206 states have call predecessors, (4225), 4221 states have call successors, (4225) [2021-12-06 23:41:22,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15950 states to 15950 states and 23231 transitions. [2021-12-06 23:41:22,652 INFO L78 Accepts]: Start accepts. Automaton has 15950 states and 23231 transitions. Word has length 92 [2021-12-06 23:41:22,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:41:22,652 INFO L470 AbstractCegarLoop]: Abstraction has 15950 states and 23231 transitions. [2021-12-06 23:41:22,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:41:22,652 INFO L276 IsEmpty]: Start isEmpty. Operand 15950 states and 23231 transitions. [2021-12-06 23:41:22,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-06 23:41:22,655 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:41:22,655 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 23:41:22,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 23:41:22,655 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:41:22,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:41:22,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1831177978, now seen corresponding path program 1 times [2021-12-06 23:41:22,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:41:22,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332578929] [2021-12-06 23:41:22,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:41:22,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:41:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:41:23,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:41:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:41:23,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:41:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:41:23,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:41:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:41:23,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:41:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:41:23,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:41:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:41:23,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 23:41:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:41:23,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:41:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:41:23,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:41:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:41:23,216 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-06 23:41:23,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:41:23,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332578929] [2021-12-06 23:41:23,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332578929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:41:23,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:41:23,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:41:23,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376003084] [2021-12-06 23:41:23,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:41:23,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:41:23,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:41:23,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:41:23,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:41:23,217 INFO L87 Difference]: Start difference. First operand 15950 states and 23231 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:41:25,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:41:26,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:41:27,310 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:41:35,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:41:37,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:41:45,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:41:50,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:42:04,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:42:06,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:42:25,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:42:27,980 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:42:32,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:42:34,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:42:38,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:42:40,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:42:43,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:42:48,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:42:48,315 INFO L93 Difference]: Finished difference Result 37284 states and 57921 transitions. [2021-12-06 23:42:48,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:42:48,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 93 [2021-12-06 23:42:48,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:42:48,461 INFO L225 Difference]: With dead ends: 37284 [2021-12-06 23:42:48,461 INFO L226 Difference]: Without dead ends: 37280 [2021-12-06 23:42:48,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:42:48,477 INFO L933 BasicCegarLoop]: 10232 mSDtfsCounter, 13570 mSDsluCounter, 20332 mSDsCounter, 0 mSdLazyCounter, 12529 mSolverCounterSat, 8582 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14601 SdHoareTripleChecker+Valid, 30564 SdHoareTripleChecker+Invalid, 21123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8582 IncrementalHoareTripleChecker+Valid, 12529 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.8s IncrementalHoareTripleChecker+Time [2021-12-06 23:42:48,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14601 Valid, 30564 Invalid, 21123 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8582 Valid, 12529 Invalid, 12 Unknown, 0 Unchecked, 82.8s Time] [2021-12-06 23:42:48,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37280 states. [2021-12-06 23:42:49,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37280 to 31117. [2021-12-06 23:42:49,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31117 states, 21087 states have (on average 1.3593683311993172) internal successors, (28665), 21903 states have internal predecessors, (28665), 8337 states have call successors, (8337), 1606 states have call predecessors, (8337), 1692 states have return successors, (9260), 8356 states have call predecessors, (9260), 8326 states have call successors, (9260) [2021-12-06 23:42:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31117 states to 31117 states and 46262 transitions. [2021-12-06 23:42:49,939 INFO L78 Accepts]: Start accepts. Automaton has 31117 states and 46262 transitions. Word has length 93 [2021-12-06 23:42:49,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:42:49,939 INFO L470 AbstractCegarLoop]: Abstraction has 31117 states and 46262 transitions. [2021-12-06 23:42:49,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:42:49,939 INFO L276 IsEmpty]: Start isEmpty. Operand 31117 states and 46262 transitions. [2021-12-06 23:42:49,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-06 23:42:49,943 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:42:49,943 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 23:42:49,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 23:42:49,943 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:42:49,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:42:49,943 INFO L85 PathProgramCache]: Analyzing trace with hash 929465018, now seen corresponding path program 1 times [2021-12-06 23:42:49,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:42:49,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593766630] [2021-12-06 23:42:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:42:49,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:42:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:42:50,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:42:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:42:50,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:42:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:42:50,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:42:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:42:50,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:42:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:42:50,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:42:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:42:50,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 23:42:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:42:50,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:42:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:42:50,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:42:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:42:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-06 23:42:50,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:42:50,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593766630] [2021-12-06 23:42:50,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593766630] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:42:50,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:42:50,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:42:50,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988768177] [2021-12-06 23:42:50,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:42:50,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:42:50,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:42:50,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:42:50,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:42:50,461 INFO L87 Difference]: Start difference. First operand 31117 states and 46262 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:42:52,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:42:53,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:42:54,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:42:56,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:43:04,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:43:06,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:43:10,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:43:12,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:43:15,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:43:22,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:43:24,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:43:52,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:43:54,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:43:59,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:44:01,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:44:02,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:44:11,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:44:11,695 INFO L93 Difference]: Finished difference Result 69942 states and 109033 transitions. [2021-12-06 23:44:11,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:44:11,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 94 [2021-12-06 23:44:11,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:44:12,035 INFO L225 Difference]: With dead ends: 69942 [2021-12-06 23:44:12,035 INFO L226 Difference]: Without dead ends: 69938 [2021-12-06 23:44:12,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:44:12,064 INFO L933 BasicCegarLoop]: 10119 mSDtfsCounter, 13340 mSDsluCounter, 19781 mSDsCounter, 0 mSdLazyCounter, 12331 mSolverCounterSat, 8608 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14254 SdHoareTripleChecker+Valid, 29900 SdHoareTripleChecker+Invalid, 20946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8608 IncrementalHoareTripleChecker+Valid, 12331 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.6s IncrementalHoareTripleChecker+Time [2021-12-06 23:44:12,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14254 Valid, 29900 Invalid, 20946 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8608 Valid, 12331 Invalid, 7 Unknown, 0 Unchecked, 77.6s Time] [2021-12-06 23:44:12,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69938 states. [2021-12-06 23:44:14,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69938 to 59967. [2021-12-06 23:44:14,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59967 states, 40685 states have (on average 1.3562246528204498) internal successors, (55178), 42235 states have internal predecessors, (55178), 15938 states have call successors, (15938), 3168 states have call predecessors, (15938), 3343 states have return successors, (18548), 15959 states have call predecessors, (18548), 15927 states have call successors, (18548) [2021-12-06 23:44:15,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59967 states to 59967 states and 89664 transitions. [2021-12-06 23:44:15,115 INFO L78 Accepts]: Start accepts. Automaton has 59967 states and 89664 transitions. Word has length 94 [2021-12-06 23:44:15,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:44:15,116 INFO L470 AbstractCegarLoop]: Abstraction has 59967 states and 89664 transitions. [2021-12-06 23:44:15,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:44:15,116 INFO L276 IsEmpty]: Start isEmpty. Operand 59967 states and 89664 transitions. [2021-12-06 23:44:15,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-06 23:44:15,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:44:15,119 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 23:44:15,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 23:44:15,119 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:44:15,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:44:15,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1253828099, now seen corresponding path program 1 times [2021-12-06 23:44:15,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:44:15,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810675881] [2021-12-06 23:44:15,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:44:15,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:44:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:15,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:44:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:15,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:44:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:15,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:44:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:15,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:44:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:15,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:44:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:15,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 23:44:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:15,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:44:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:15,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:44:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:44:15,613 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-06 23:44:15,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:44:15,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810675881] [2021-12-06 23:44:15,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810675881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:44:15,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:44:15,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:44:15,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556953415] [2021-12-06 23:44:15,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:44:15,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:44:15,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:44:15,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:44:15,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:44:15,614 INFO L87 Difference]: Start difference. First operand 59967 states and 89664 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:44:28,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:44:30,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:44:32,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:44:40,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:44:47,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:44:49,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:45:14,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:45:16,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:45:18,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:45:24,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:45:25,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:45:26,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:45:31,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:45:31,992 INFO L93 Difference]: Finished difference Result 106071 states and 163808 transitions. [2021-12-06 23:45:31,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 23:45:31,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 95 [2021-12-06 23:45:31,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:45:32,413 INFO L225 Difference]: With dead ends: 106071 [2021-12-06 23:45:32,413 INFO L226 Difference]: Without dead ends: 106055 [2021-12-06 23:45:32,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:45:32,465 INFO L933 BasicCegarLoop]: 9302 mSDtfsCounter, 12362 mSDsluCounter, 15971 mSDsCounter, 0 mSdLazyCounter, 9419 mSolverCounterSat, 7328 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13136 SdHoareTripleChecker+Valid, 25273 SdHoareTripleChecker+Invalid, 16755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7328 IncrementalHoareTripleChecker+Valid, 9419 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.6s IncrementalHoareTripleChecker+Time [2021-12-06 23:45:32,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13136 Valid, 25273 Invalid, 16755 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7328 Valid, 9419 Invalid, 8 Unknown, 0 Unchecked, 71.6s Time] [2021-12-06 23:45:32,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106055 states. [2021-12-06 23:45:36,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106055 to 95179. [2021-12-06 23:45:36,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95179 states, 65402 states have (on average 1.360447692731109) internal successors, (88976), 67855 states have internal predecessors, (88976), 24312 states have call successors, (24312), 5389 states have call predecessors, (24312), 5464 states have return successors, (29106), 23879 states have call predecessors, (29106), 24301 states have call successors, (29106) [2021-12-06 23:45:36,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95179 states to 95179 states and 142394 transitions. [2021-12-06 23:45:36,855 INFO L78 Accepts]: Start accepts. Automaton has 95179 states and 142394 transitions. Word has length 95 [2021-12-06 23:45:36,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:45:36,856 INFO L470 AbstractCegarLoop]: Abstraction has 95179 states and 142394 transitions. [2021-12-06 23:45:36,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 23:45:36,856 INFO L276 IsEmpty]: Start isEmpty. Operand 95179 states and 142394 transitions. [2021-12-06 23:45:36,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-12-06 23:45:36,861 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:45:36,861 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-06 23:45:36,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 23:45:36,861 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:45:36,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:45:36,861 INFO L85 PathProgramCache]: Analyzing trace with hash 812437533, now seen corresponding path program 1 times [2021-12-06 23:45:36,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:45:36,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738316137] [2021-12-06 23:45:36,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:45:36,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:45:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:45:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:45:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 23:45:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:45:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:45:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 23:45:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 23:45:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-06 23:45:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 23:45:37,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-06 23:45:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 23:45:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 23:45:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 23:45:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-06 23:45:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 23:45:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 23:45:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:45:37,515 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 23:45:37,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:45:37,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738316137] [2021-12-06 23:45:37,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738316137] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:45:37,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:45:37,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 23:45:37,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146647501] [2021-12-06 23:45:37,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:45:37,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 23:45:37,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:45:37,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 23:45:37,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-06 23:45:37,516 INFO L87 Difference]: Start difference. First operand 95179 states and 142394 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-06 23:45:42,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:45:57,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:45:59,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:46:01,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:46:11,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:46:15,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:46:34,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:46:37,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:46:40,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:46:53,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:46:55,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:47:25,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:47:27,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:47:32,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:47:40,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:47:40,423 INFO L93 Difference]: Finished difference Result 275583 states and 421464 transitions. [2021-12-06 23:47:40,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 23:47:40,423 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2021-12-06 23:47:40,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted.