./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-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc --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 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:25:14,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:25:14,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:25:14,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:25:14,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:25:14,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:25:14,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:25:14,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:25:14,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:25:14,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:25:14,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:25:14,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:25:14,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:25:14,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:25:14,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:25:14,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:25:14,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:25:14,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:25:14,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:25:14,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:25:14,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:25:14,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:25:14,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:25:14,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:25:14,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:25:14,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:25:14,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:25:14,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:25:14,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:25:14,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:25:14,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:25:14,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:25:14,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:25:14,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:25:14,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:25:14,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:25:14,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:25:14,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:25:14,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:25:14,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:25:14,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:25:14,097 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:25:14,118 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:25:14,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:25:14,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:25:14,119 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:25:14,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:25:14,119 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:25:14,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:25:14,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:25:14,120 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:25:14,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:25:14,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:25:14,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:25:14,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:25:14,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:25:14,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:25:14,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:25:14,122 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:25:14,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:25:14,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:25:14,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:25:14,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:25:14,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:25:14,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:25:14,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:25:14,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:25:14,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:25:14,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:25:14,124 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:25:14,124 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:25:14,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:25:14,125 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_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2022-11-02 20:25:14,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:25:14,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:25:14,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:25:14,449 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:25:14,450 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:25:14,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-02 20:25:14,531 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc/data/fac70309e/c0ae9d20cf57458aa15489a3b6ffba37/FLAGbf7775873 [2022-11-02 20:25:15,589 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:25:15,591 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-02 20:25:15,687 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc/data/fac70309e/c0ae9d20cf57458aa15489a3b6ffba37/FLAGbf7775873 [2022-11-02 20:25:15,873 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc/data/fac70309e/c0ae9d20cf57458aa15489a3b6ffba37 [2022-11-02 20:25:15,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:25:15,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:25:15,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:25:15,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:25:15,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:25:15,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:25:15" (1/1) ... [2022-11-02 20:25:15,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b78b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:25:15, skipping insertion in model container [2022-11-02 20:25:15,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:25:15" (1/1) ... [2022-11-02 20:25:15,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:25:16,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:25:20,210 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_fce7b976-3326-42ff-af44-5e367e98214c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-11-02 20:25:20,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:25:20,287 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:25:20,931 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_fce7b976-3326-42ff-af44-5e367e98214c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2022-11-02 20:25:20,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:25:21,299 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:25:21,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:25:21 WrapperNode [2022-11-02 20:25:21,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:25:21,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:25:21,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:25:21,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:25:21,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:25:21" (1/1) ... [2022-11-02 20:25:21,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:25:21" (1/1) ... [2022-11-02 20:25:21,721 INFO L138 Inliner]: procedures = 490, calls = 4671, calls flagged for inlining = 140, calls inlined = 118, statements flattened = 7284 [2022-11-02 20:25:21,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:25:21,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:25:21,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:25:21,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:25:21,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:25:21" (1/1) ... [2022-11-02 20:25:21,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:25:21" (1/1) ... [2022-11-02 20:25:21,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:25:21" (1/1) ... [2022-11-02 20:25:21,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:25:21" (1/1) ... [2022-11-02 20:25:21,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:25:21" (1/1) ... [2022-11-02 20:25:21,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:25:21" (1/1) ... [2022-11-02 20:25:22,083 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:25:21" (1/1) ... [2022-11-02 20:25:22,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:25:21" (1/1) ... [2022-11-02 20:25:22,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:25:22,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:25:22,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:25:22,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:25:22,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:25:21" (1/1) ... [2022-11-02 20:25:22,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:25:22,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:25:22,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:25:22,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fce7b976-3326-42ff-af44-5e367e98214c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:25:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-02 20:25:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-02 20:25:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_prepare_pkt [2022-11-02 20:25:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_prepare_pkt [2022-11-02 20:25:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-02 20:25:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-02 20:25:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-02 20:25:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-02 20:25:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_setup [2022-11-02 20:25:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_setup [2022-11-02 20:25:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-02 20:25:22,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-02 20:25:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:25:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:25:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure ll_dequeue [2022-11-02 20:25:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_dequeue [2022-11-02 20:25:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_close [2022-11-02 20:25:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_close [2022-11-02 20:25:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2022-11-02 20:25:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2022-11-02 20:25:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-02 20:25:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-02 20:25:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 20:25:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 20:25:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_flush [2022-11-02 20:25:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_flush [2022-11-02 20:25:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure ath_dequeue [2022-11-02 20:25:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_dequeue [2022-11-02 20:25:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-02 20:25:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-02 20:25:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-02 20:25:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure h5_link_control [2022-11-02 20:25:22,251 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_link_control [2022-11-02 20:25:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-02 20:25:22,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-02 20:25:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 20:25:22,251 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 20:25:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure bt_skb_alloc___1 [2022-11-02 20:25:22,252 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_skb_alloc___1 [2022-11-02 20:25:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2022-11-02 20:25:22,252 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2022-11-02 20:25:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:25:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure h4_enqueue [2022-11-02 20:25:22,253 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_enqueue [2022-11-02 20:25:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-02 20:25:22,253 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-02 20:25:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure ath_hci_uart_work [2022-11-02 20:25:22,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_hci_uart_work [2022-11-02 20:25:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure btbcm_set_bdaddr [2022-11-02 20:25:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_setup [2022-11-02 20:25:22,254 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_setup [2022-11-02 20:25:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 20:25:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-02 20:25:22,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-02 20:25:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:25:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure __ll_do_awake [2022-11-02 20:25:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __ll_do_awake [2022-11-02 20:25:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2022-11-02 20:25:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2022-11-02 20:25:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure h5_peer_reset [2022-11-02 20:25:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_peer_reset [2022-11-02 20:25:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:25:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure h5_enqueue [2022-11-02 20:25:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_enqueue [2022-11-02 20:25:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_complete_rx_pkt [2022-11-02 20:25:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_complete_rx_pkt [2022-11-02 20:25:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 20:25:22,261 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 20:25:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_unregister_proto [2022-11-02 20:25:22,261 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_unregister_proto [2022-11-02 20:25:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-02 20:25:22,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-02 20:25:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure hci_get_drvdata [2022-11-02 20:25:22,263 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_get_drvdata [2022-11-02 20:25:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_close [2022-11-02 20:25:22,263 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_close [2022-11-02 20:25:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure btintel_set_bdaddr [2022-11-02 20:25:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-02 20:25:22,263 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-02 20:25:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_recv [2022-11-02 20:25:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_recv [2022-11-02 20:25:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_register_proto [2022-11-02 20:25:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_register_proto [2022-11-02 20:25:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_recv [2022-11-02 20:25:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_recv [2022-11-02 20:25:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-02 20:25:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-02 20:25:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_flush [2022-11-02 20:25:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_flush [2022-11-02 20:25:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:25:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2022-11-02 20:25:22,266 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2022-11-02 20:25:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-11-02 20:25:22,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-11-02 20:25:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:25:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure bscp_get_crc [2022-11-02 20:25:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure bscp_get_crc [2022-11-02 20:25:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-02 20:25:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-02 20:25:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:25:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:25:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-02 20:25:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2022-11-02 20:25:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2022-11-02 20:25:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_init_work [2022-11-02 20:25:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_init_work [2022-11-02 20:25:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure ll_close [2022-11-02 20:25:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_close [2022-11-02 20:25:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-02 20:25:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-02 20:25:22,270 INFO L130 BoogieDeclarations]: Found specification of procedure hci_register_dev [2022-11-02 20:25:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_register_dev [2022-11-02 20:25:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure send_hcill_cmd [2022-11-02 20:25:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure send_hcill_cmd [2022-11-02 20:25:22,271 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-02 20:25:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-02 20:25:22,272 INFO L130 BoogieDeclarations]: Found specification of procedure ath_flush [2022-11-02 20:25:22,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_flush [2022-11-02 20:25:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_msgdelim [2022-11-02 20:25:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_msgdelim [2022-11-02 20:25:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure h4_dequeue [2022-11-02 20:25:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_dequeue [2022-11-02 20:25:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure ath_wakeup_ar3k [2022-11-02 20:25:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_wakeup_ar3k [2022-11-02 20:25:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure h5_prepare_pkt [2022-11-02 20:25:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_prepare_pkt [2022-11-02 20:25:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-02 20:25:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-02 20:25:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-02 20:25:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-02 20:25:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_open [2022-11-02 20:25:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_open [2022-11-02 20:25:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-02 20:25:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-02 20:25:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_close [2022-11-02 20:25:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_close [2022-11-02 20:25:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-02 20:25:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-02 20:25:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure h5_cfg_field [2022-11-02 20:25:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_cfg_field [2022-11-02 20:25:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:25:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:25:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-02 20:25:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-02 20:25:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure h5_flush [2022-11-02 20:25:22,287 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_flush [2022-11-02 20:25:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-02 20:25:22,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-02 20:25:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure ll_check_data_len [2022-11-02 20:25:22,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_check_data_len [2022-11-02 20:25:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-02 20:25:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-02 20:25:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 20:25:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:25:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:25:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:25:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_one_byte [2022-11-02 20:25:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_one_byte [2022-11-02 20:25:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-02 20:25:22,289 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-02 20:25:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-11-02 20:25:22,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-11-02 20:25:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_set_baudrate [2022-11-02 20:25:22,289 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_set_baudrate [2022-11-02 20:25:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2022-11-02 20:25:22,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2022-11-02 20:25:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-11-02 20:25:22,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-11-02 20:25:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure ath_open [2022-11-02 20:25:22,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_open [2022-11-02 20:25:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure ath_setup [2022-11-02 20:25:22,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_setup [2022-11-02 20:25:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-02 20:25:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-02 20:25:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_dequeue [2022-11-02 20:25:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_dequeue [2022-11-02 20:25:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:25:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:25:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure hci_free_dev [2022-11-02 20:25:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_free_dev [2022-11-02 20:25:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2022-11-02 20:25:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2022-11-02 20:25:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-02 20:25:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-02 20:25:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure h4_open [2022-11-02 20:25:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_open [2022-11-02 20:25:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-02 20:25:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-02 20:25:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-02 20:25:22,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-02 20:25:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_send_frame [2022-11-02 20:25:22,293 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_send_frame [2022-11-02 20:25:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:25:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure __hci_cmd_sync [2022-11-02 20:25:22,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __hci_cmd_sync [2022-11-02 20:25:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure ath_close [2022-11-02 20:25:22,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_close [2022-11-02 20:25:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_crc_update [2022-11-02 20:25:22,295 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_crc_update [2022-11-02 20:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-02 20:25:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-02 20:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-02 20:25:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-02 20:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-02 20:25:22,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-02 20:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-02 20:25:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-02 20:25:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure hci_recv_frame [2022-11-02 20:25:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_recv_frame [2022-11-02 20:25:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:25:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure h4_close [2022-11-02 20:25:22,297 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_close [2022-11-02 20:25:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2022-11-02 20:25:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2022-11-02 20:25:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure h5_reset_rx [2022-11-02 20:25:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_reset_rx [2022-11-02 20:25:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-02 20:25:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-02 20:25:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_termios [2022-11-02 20:25:22,298 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_termios [2022-11-02 20:25:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv [2022-11-02 20:25:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv [2022-11-02 20:25:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-02 20:25:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-02 20:25:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-02 20:25:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-02 20:25:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-02 20:25:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-02 20:25:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure ath_recv [2022-11-02 20:25:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_recv [2022-11-02 20:25:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_flush [2022-11-02 20:25:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_flush [2022-11-02 20:25:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure h5_close [2022-11-02 20:25:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_close [2022-11-02 20:25:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_dequeue [2022-11-02 20:25:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_dequeue [2022-11-02 20:25:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-02 20:25:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-02 20:25:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_one_byte [2022-11-02 20:25:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_one_byte [2022-11-02 20:25:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_open [2022-11-02 20:25:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_open [2022-11-02 20:25:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure h5_dequeue [2022-11-02 20:25:22,302 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_dequeue [2022-11-02 20:25:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_delim [2022-11-02 20:25:22,306 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_delim [2022-11-02 20:25:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_close [2022-11-02 20:25:22,306 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_close [2022-11-02 20:25:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-02 20:25:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-02 20:25:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure ath_enqueue [2022-11-02 20:25:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_enqueue [2022-11-02 20:25:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure h5_open [2022-11-02 20:25:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_open [2022-11-02 20:25:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-02 20:25:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-02 20:25:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure ll_enqueue [2022-11-02 20:25:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_enqueue [2022-11-02 20:25:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-02 20:25:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-02 20:25:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv_buf [2022-11-02 20:25:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv_buf [2022-11-02 20:25:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:25:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:25:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:25:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-11-02 20:25:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-11-02 20:25:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-02 20:25:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-02 20:25:22,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:25:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:25:22,311 INFO L130 BoogieDeclarations]: Found specification of procedure tty_driver_flush_buffer [2022-11-02 20:25:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_driver_flush_buffer [2022-11-02 20:25:22,311 INFO L130 BoogieDeclarations]: Found specification of procedure h5_recv [2022-11-02 20:25:22,311 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_recv [2022-11-02 20:25:22,311 INFO L130 BoogieDeclarations]: Found specification of procedure ll_open [2022-11-02 20:25:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_open [2022-11-02 20:25:22,312 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tx_wakeup [2022-11-02 20:25:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tx_wakeup [2022-11-02 20:25:22,312 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-02 20:25:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-02 20:25:22,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-02 20:25:22,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-02 20:25:22,312 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_set_baudrate [2022-11-02 20:25:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_set_baudrate [2022-11-02 20:25:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure ll_flush [2022-11-02 20:25:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_flush [2022-11-02 20:25:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_enqueue [2022-11-02 20:25:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_enqueue [2022-11-02 20:25:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure h5_complete_rx_pkt [2022-11-02 20:25:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_complete_rx_pkt [2022-11-02 20:25:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure ll_recv [2022-11-02 20:25:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_recv [2022-11-02 20:25:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_write_work [2022-11-02 20:25:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_write_work [2022-11-02 20:25:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-02 20:25:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-02 20:25:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-02 20:25:22,314 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-02 20:25:22,314 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-02 20:25:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-02 20:25:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_open [2022-11-02 20:25:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_open [2022-11-02 20:25:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_enqueue [2022-11-02 20:25:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_enqueue [2022-11-02 20:25:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-02 20:25:22,315 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-02 20:25:22,315 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:25:22,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-02 20:25:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:25:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-11-02 20:25:22,316 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-11-02 20:25:22,316 INFO L130 BoogieDeclarations]: Found specification of procedure h4_flush [2022-11-02 20:25:22,316 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_flush [2022-11-02 20:25:23,374 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:25:23,378 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:25:24,046 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:25:37,705 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:25:37,728 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:25:37,728 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:25:37,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:25:37 BoogieIcfgContainer [2022-11-02 20:25:37,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:25:37,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:25:37,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:25:37,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:25:37,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:25:15" (1/3) ... [2022-11-02 20:25:37,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214b9805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:25:37, skipping insertion in model container [2022-11-02 20:25:37,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:25:21" (2/3) ... [2022-11-02 20:25:37,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214b9805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:25:37, skipping insertion in model container [2022-11-02 20:25:37,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:25:37" (3/3) ... [2022-11-02 20:25:37,744 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2022-11-02 20:25:37,762 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:25:37,763 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:25:37,872 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:25:37,878 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a5a6ba8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:25:37,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:25:37,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 2694 states, 1836 states have (on average 1.3600217864923747) internal successors, (2497), 1890 states have internal predecessors, (2497), 709 states have call successors, (709), 148 states have call predecessors, (709), 147 states have return successors, (699), 686 states have call predecessors, (699), 699 states have call successors, (699) [2022-11-02 20:25:37,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-02 20:25:37,912 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:25:37,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:25:37,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:25:37,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:25:37,918 INFO L85 PathProgramCache]: Analyzing trace with hash 919352225, now seen corresponding path program 1 times [2022-11-02 20:25:37,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:25:37,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242885676] [2022-11-02 20:25:37,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:25:37,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:25:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:39,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-02 20:25:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:39,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:25:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:39,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:39,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:25:39,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:25:39,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242885676] [2022-11-02 20:25:39,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242885676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:25:39,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:25:39,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:25:39,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528731470] [2022-11-02 20:25:39,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:25:39,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:25:39,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:25:39,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:25:39,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:25:39,529 INFO L87 Difference]: Start difference. First operand has 2694 states, 1836 states have (on average 1.3600217864923747) internal successors, (2497), 1890 states have internal predecessors, (2497), 709 states have call successors, (709), 148 states have call predecessors, (709), 147 states have return successors, (699), 686 states have call predecessors, (699), 699 states have call successors, (699) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:25:43,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:25:49,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:25:49,543 INFO L93 Difference]: Finished difference Result 6003 states and 9011 transitions. [2022-11-02 20:25:49,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:25:49,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2022-11-02 20:25:49,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:25:49,616 INFO L225 Difference]: With dead ends: 6003 [2022-11-02 20:25:49,616 INFO L226 Difference]: Without dead ends: 3273 [2022-11-02 20:25:49,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:25:49,653 INFO L413 NwaCegarLoop]: 3959 mSDtfsCounter, 4107 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 1310 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4477 SdHoareTripleChecker+Valid, 6536 SdHoareTripleChecker+Invalid, 2501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1310 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:25:49,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4477 Valid, 6536 Invalid, 2501 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1310 Valid, 1190 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time] [2022-11-02 20:25:49,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2022-11-02 20:25:49,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 2909. [2022-11-02 20:25:49,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2909 states, 1991 states have (on average 1.3470617780010046) internal successors, (2682), 2033 states have internal predecessors, (2682), 740 states have call successors, (740), 178 states have call predecessors, (740), 177 states have return successors, (739), 726 states have call predecessors, (739), 739 states have call successors, (739) [2022-11-02 20:25:49,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 4161 transitions. [2022-11-02 20:25:49,986 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 4161 transitions. Word has length 57 [2022-11-02 20:25:49,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:25:49,989 INFO L495 AbstractCegarLoop]: Abstraction has 2909 states and 4161 transitions. [2022-11-02 20:25:49,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 20:25:49,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 4161 transitions. [2022-11-02 20:25:50,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-02 20:25:50,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:25:50,009 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:25:50,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:25:50,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:25:50,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:25:50,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1907866497, now seen corresponding path program 1 times [2022-11-02 20:25:50,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:25:50,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455172414] [2022-11-02 20:25:50,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:25:50,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:25:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:51,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:25:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:51,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 20:25:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:51,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:51,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-02 20:25:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:51,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-02 20:25:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:51,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:25:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:25:51,684 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 20:25:51,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:25:51,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455172414] [2022-11-02 20:25:51,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455172414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:25:51,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:25:51,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:25:51,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744865090] [2022-11-02 20:25:51,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:25:51,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:25:51,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:25:51,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:25:51,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:25:51,688 INFO L87 Difference]: Start difference. First operand 2909 states and 4161 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-02 20:25:58,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:26:22,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:26:22,119 INFO L93 Difference]: Finished difference Result 6744 states and 9984 transitions. [2022-11-02 20:26:22,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:26:22,125 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 74 [2022-11-02 20:26:22,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:26:22,151 INFO L225 Difference]: With dead ends: 6744 [2022-11-02 20:26:22,151 INFO L226 Difference]: Without dead ends: 3841 [2022-11-02 20:26:22,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:26:22,168 INFO L413 NwaCegarLoop]: 3560 mSDtfsCounter, 2516 mSDsluCounter, 14177 mSDsCounter, 0 mSdLazyCounter, 12341 mSolverCounterSat, 2200 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2907 SdHoareTripleChecker+Valid, 17737 SdHoareTripleChecker+Invalid, 14542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2200 IncrementalHoareTripleChecker+Valid, 12341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:26:22,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2907 Valid, 17737 Invalid, 14542 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2200 Valid, 12341 Invalid, 1 Unknown, 0 Unchecked, 29.7s Time] [2022-11-02 20:26:22,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3841 states. [2022-11-02 20:26:22,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3841 to 2916. [2022-11-02 20:26:22,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 1996 states have (on average 1.3461923847695392) internal successors, (2687), 2038 states have internal predecessors, (2687), 740 states have call successors, (740), 178 states have call predecessors, (740), 179 states have return successors, (744), 728 states have call predecessors, (744), 739 states have call successors, (744) [2022-11-02 20:26:22,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 4171 transitions. [2022-11-02 20:26:22,350 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 4171 transitions. Word has length 74 [2022-11-02 20:26:22,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:26:22,351 INFO L495 AbstractCegarLoop]: Abstraction has 2916 states and 4171 transitions. [2022-11-02 20:26:22,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-02 20:26:22,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 4171 transitions. [2022-11-02 20:26:22,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-02 20:26:22,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:26:22,367 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 20:26:22,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:26:22,368 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:26:22,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:22,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1626018516, now seen corresponding path program 1 times [2022-11-02 20:26:22,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:22,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054283328] [2022-11-02 20:26:22,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:22,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:23,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:26:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:23,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 20:26:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:23,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:26:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:23,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-02 20:26:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:23,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-02 20:26:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:26:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:23,848 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 20:26:23,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:23,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054283328] [2022-11-02 20:26:23,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054283328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:23,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:23,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:26:23,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358754917] [2022-11-02 20:26:23,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:23,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:26:23,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:23,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:26:23,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:26:23,852 INFO L87 Difference]: Start difference. First operand 2916 states and 4171 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-02 20:26:30,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:26:34,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:26:46,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:26:49,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:26:51,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:27:01,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:01,886 INFO L93 Difference]: Finished difference Result 6748 states and 9983 transitions. [2022-11-02 20:27:01,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:27:01,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 81 [2022-11-02 20:27:01,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:27:01,917 INFO L225 Difference]: With dead ends: 6748 [2022-11-02 20:27:01,918 INFO L226 Difference]: Without dead ends: 3838 [2022-11-02 20:27:01,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:27:01,933 INFO L413 NwaCegarLoop]: 3596 mSDtfsCounter, 2497 mSDsluCounter, 14327 mSDsCounter, 0 mSdLazyCounter, 12354 mSolverCounterSat, 2194 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2889 SdHoareTripleChecker+Valid, 17923 SdHoareTripleChecker+Invalid, 14552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2194 IncrementalHoareTripleChecker+Valid, 12354 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:27:01,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2889 Valid, 17923 Invalid, 14552 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2194 Valid, 12354 Invalid, 4 Unknown, 0 Unchecked, 37.4s Time] [2022-11-02 20:27:01,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3838 states. [2022-11-02 20:27:02,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3838 to 2918. [2022-11-02 20:27:02,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 1998 states have (on average 1.3458458458458458) internal successors, (2689), 2039 states have internal predecessors, (2689), 740 states have call successors, (740), 178 states have call predecessors, (740), 179 states have return successors, (744), 729 states have call predecessors, (744), 739 states have call successors, (744) [2022-11-02 20:27:02,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 4173 transitions. [2022-11-02 20:27:02,106 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 4173 transitions. Word has length 81 [2022-11-02 20:27:02,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:27:02,107 INFO L495 AbstractCegarLoop]: Abstraction has 2918 states and 4173 transitions. [2022-11-02 20:27:02,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-02 20:27:02,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 4173 transitions. [2022-11-02 20:27:02,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-02 20:27:02,120 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:27:02,120 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:02,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:27:02,121 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:27:02,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:02,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1630873535, now seen corresponding path program 1 times [2022-11-02 20:27:02,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:02,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580293638] [2022-11-02 20:27:02,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:02,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:27:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:27:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:27:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 20:27:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:27:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:27:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-02 20:27:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:27:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-02 20:27:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:27:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-02 20:27:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-02 20:27:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:27:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:27:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-02 20:27:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:27:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-02 20:27:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,783 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-11-02 20:27:02,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:02,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580293638] [2022-11-02 20:27:02,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580293638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:02,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:02,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:27:02,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786088876] [2022-11-02 20:27:02,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:02,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:27:02,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:27:02,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:27:02,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:27:02,788 INFO L87 Difference]: Start difference. First operand 2918 states and 4173 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-02 20:27:09,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:27:57,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:57,590 INFO L93 Difference]: Finished difference Result 11309 states and 17252 transitions. [2022-11-02 20:27:57,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-02 20:27:57,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2022-11-02 20:27:57,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:27:57,651 INFO L225 Difference]: With dead ends: 11309 [2022-11-02 20:27:57,651 INFO L226 Difference]: Without dead ends: 8397 [2022-11-02 20:27:57,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-02 20:27:57,668 INFO L413 NwaCegarLoop]: 3924 mSDtfsCounter, 10433 mSDsluCounter, 9433 mSDsCounter, 0 mSdLazyCounter, 16014 mSolverCounterSat, 9163 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11236 SdHoareTripleChecker+Valid, 13357 SdHoareTripleChecker+Invalid, 25178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9163 IncrementalHoareTripleChecker+Valid, 16014 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:27:57,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11236 Valid, 13357 Invalid, 25178 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9163 Valid, 16014 Invalid, 1 Unknown, 0 Unchecked, 53.5s Time] [2022-11-02 20:27:57,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8397 states. [2022-11-02 20:27:58,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8397 to 5749. [2022-11-02 20:27:58,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5749 states, 3933 states have (on average 1.3463005339435545) internal successors, (5295), 4016 states have internal predecessors, (5295), 1459 states have call successors, (1459), 353 states have call predecessors, (1459), 356 states have return successors, (1468), 1437 states have call predecessors, (1468), 1458 states have call successors, (1468) [2022-11-02 20:27:58,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5749 states to 5749 states and 8222 transitions. [2022-11-02 20:27:58,147 INFO L78 Accepts]: Start accepts. Automaton has 5749 states and 8222 transitions. Word has length 131 [2022-11-02 20:27:58,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:27:58,147 INFO L495 AbstractCegarLoop]: Abstraction has 5749 states and 8222 transitions. [2022-11-02 20:27:58,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-02 20:27:58,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5749 states and 8222 transitions. [2022-11-02 20:27:58,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-02 20:27:58,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:27:58,167 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:58,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:27:58,167 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:27:58,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:58,168 INFO L85 PathProgramCache]: Analyzing trace with hash 2010818820, now seen corresponding path program 1 times [2022-11-02 20:27:58,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:58,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2449146] [2022-11-02 20:27:58,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:58,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:58,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-02 20:27:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:58,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 20:27:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:58,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:27:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:58,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-02 20:27:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:58,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 20:27:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:58,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:27:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:58,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:27:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:58,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-02 20:27:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:58,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:27:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:58,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-02 20:27:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:58,849 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-02 20:27:58,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:58,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2449146] [2022-11-02 20:27:58,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2449146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:58,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:58,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:27:58,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957309627] [2022-11-02 20:27:58,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:58,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:27:58,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:27:58,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:27:58,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:27:58,853 INFO L87 Difference]: Start difference. First operand 5749 states and 8222 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-02 20:28:02,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:28:14,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:28:14,113 INFO L93 Difference]: Finished difference Result 13315 states and 19582 transitions. [2022-11-02 20:28:14,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:28:14,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2022-11-02 20:28:14,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:28:14,171 INFO L225 Difference]: With dead ends: 13315 [2022-11-02 20:28:14,172 INFO L226 Difference]: Without dead ends: 7572 [2022-11-02 20:28:14,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:28:14,203 INFO L413 NwaCegarLoop]: 3533 mSDtfsCounter, 6016 mSDsluCounter, 2890 mSDsCounter, 0 mSdLazyCounter, 2624 mSolverCounterSat, 3795 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6382 SdHoareTripleChecker+Valid, 6423 SdHoareTripleChecker+Invalid, 6420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3795 IncrementalHoareTripleChecker+Valid, 2624 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:28:14,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6382 Valid, 6423 Invalid, 6420 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3795 Valid, 2624 Invalid, 1 Unknown, 0 Unchecked, 14.6s Time] [2022-11-02 20:28:14,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7572 states. [2022-11-02 20:28:14,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7572 to 5748. [2022-11-02 20:28:14,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5748 states, 3933 states have (on average 1.3457920162725654) internal successors, (5293), 4016 states have internal predecessors, (5293), 1457 states have call successors, (1457), 354 states have call predecessors, (1457), 357 states have return successors, (1466), 1435 states have call predecessors, (1466), 1456 states have call successors, (1466) [2022-11-02 20:28:14,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5748 states to 5748 states and 8216 transitions. [2022-11-02 20:28:14,718 INFO L78 Accepts]: Start accepts. Automaton has 5748 states and 8216 transitions. Word has length 95 [2022-11-02 20:28:14,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:28:14,718 INFO L495 AbstractCegarLoop]: Abstraction has 5748 states and 8216 transitions. [2022-11-02 20:28:14,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-02 20:28:14,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5748 states and 8216 transitions. [2022-11-02 20:28:14,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-02 20:28:14,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:28:14,731 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:28:14,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:28:14,731 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:28:14,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:14,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1415081116, now seen corresponding path program 1 times [2022-11-02 20:28:14,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:14,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055492155] [2022-11-02 20:28:14,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:14,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:15,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-02 20:28:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-02 20:28:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:15,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:15,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-02 20:28:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:15,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-02 20:28:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:15,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:15,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:28:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:15,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-02 20:28:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:15,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:15,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-02 20:28:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:15,253 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-02 20:28:15,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:15,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055492155] [2022-11-02 20:28:15,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055492155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:15,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:15,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:28:15,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265898221] [2022-11-02 20:28:15,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:15,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:28:15,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:15,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:28:15,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:28:15,256 INFO L87 Difference]: Start difference. First operand 5748 states and 8216 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-02 20:28:19,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:28:21,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:28:31,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:28:31,507 INFO L93 Difference]: Finished difference Result 13310 states and 19562 transitions. [2022-11-02 20:28:31,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:28:31,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 94 [2022-11-02 20:28:31,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:28:31,681 INFO L225 Difference]: With dead ends: 13310 [2022-11-02 20:28:31,682 INFO L226 Difference]: Without dead ends: 7568 [2022-11-02 20:28:31,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:28:31,710 INFO L413 NwaCegarLoop]: 3548 mSDtfsCounter, 6010 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 3818 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6368 SdHoareTripleChecker+Valid, 6423 SdHoareTripleChecker+Invalid, 6438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3818 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-11-02 20:28:31,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6368 Valid, 6423 Invalid, 6438 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3818 Valid, 2619 Invalid, 1 Unknown, 0 Unchecked, 15.5s Time] [2022-11-02 20:28:31,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7568 states. [2022-11-02 20:28:32,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7568 to 5744. [2022-11-02 20:28:32,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 3931 states have (on average 1.3454591706944798) internal successors, (5289), 4014 states have internal predecessors, (5289), 1455 states have call successors, (1455), 354 states have call predecessors, (1455), 357 states have return successors, (1464), 1433 states have call predecessors, (1464), 1454 states have call successors, (1464) [2022-11-02 20:28:32,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 8208 transitions. [2022-11-02 20:28:32,231 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 8208 transitions. Word has length 94 [2022-11-02 20:28:32,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:28:32,232 INFO L495 AbstractCegarLoop]: Abstraction has 5744 states and 8208 transitions. [2022-11-02 20:28:32,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-02 20:28:32,233 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 8208 transitions. [2022-11-02 20:28:32,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-02 20:28:32,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:28:32,247 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:28:32,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:28:32,248 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:28:32,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:32,248 INFO L85 PathProgramCache]: Analyzing trace with hash 767501723, now seen corresponding path program 1 times [2022-11-02 20:28:32,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:32,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095717165] [2022-11-02 20:28:32,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:32,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:32,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 20:28:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:32,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 20:28:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:32,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:32,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-02 20:28:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:32,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-02 20:28:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:32,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:32,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:28:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:32,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-02 20:28:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:32,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:32,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-02 20:28:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:32,975 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-02 20:28:32,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:32,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095717165] [2022-11-02 20:28:32,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095717165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:32,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:32,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:28:32,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327093041] [2022-11-02 20:28:32,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:32,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:28:32,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:32,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:28:32,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:28:32,978 INFO L87 Difference]: Start difference. First operand 5744 states and 8208 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-02 20:28:37,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 20:28:49,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:28:49,573 INFO L93 Difference]: Finished difference Result 13302 states and 19540 transitions. [2022-11-02 20:28:49,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:28:49,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 93 [2022-11-02 20:28:49,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:28:49,630 INFO L225 Difference]: With dead ends: 13302 [2022-11-02 20:28:49,630 INFO L226 Difference]: Without dead ends: 7564 [2022-11-02 20:28:49,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:28:49,654 INFO L413 NwaCegarLoop]: 3523 mSDtfsCounter, 6007 mSDsluCounter, 2885 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 3797 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6384 SdHoareTripleChecker+Valid, 6408 SdHoareTripleChecker+Invalid, 6394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3797 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-02 20:28:49,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6384 Valid, 6408 Invalid, 6394 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3797 Valid, 2596 Invalid, 1 Unknown, 0 Unchecked, 15.7s Time] [2022-11-02 20:28:49,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7564 states. [2022-11-02 20:28:50,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7564 to 5740. [2022-11-02 20:28:50,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5740 states, 3929 states have (on average 1.3451259862560447) internal successors, (5285), 4012 states have internal predecessors, (5285), 1453 states have call successors, (1453), 354 states have call predecessors, (1453), 357 states have return successors, (1462), 1431 states have call predecessors, (1462), 1452 states have call successors, (1462) [2022-11-02 20:28:50,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5740 states to 5740 states and 8200 transitions. [2022-11-02 20:28:50,284 INFO L78 Accepts]: Start accepts. Automaton has 5740 states and 8200 transitions. Word has length 93 [2022-11-02 20:28:50,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:28:50,284 INFO L495 AbstractCegarLoop]: Abstraction has 5740 states and 8200 transitions. [2022-11-02 20:28:50,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-02 20:28:50,285 INFO L276 IsEmpty]: Start isEmpty. Operand 5740 states and 8200 transitions. [2022-11-02 20:28:50,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-02 20:28:50,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:28:50,300 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:28:50,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:28:50,300 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:28:50,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:50,301 INFO L85 PathProgramCache]: Analyzing trace with hash 775698715, now seen corresponding path program 1 times [2022-11-02 20:28:50,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:28:50,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026139432] [2022-11-02 20:28:50,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:50,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:28:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:50,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 20:28:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:50,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-02 20:28:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:50,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:50,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-02 20:28:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:50,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-02 20:28:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:50,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:50,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 20:28:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:50,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-02 20:28:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:50,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:28:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:50,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-02 20:28:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:50,955 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-02 20:28:50,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:28:50,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026139432] [2022-11-02 20:28:50,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026139432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:28:50,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:28:50,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:28:50,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971303187] [2022-11-02 20:28:50,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:28:50,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:28:50,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:28:51,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:28:51,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:28:51,067 INFO L87 Difference]: Start difference. First operand 5740 states and 8200 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)