./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 04a4b1f21e140a71b13d0aa3889e8a2db465377126c9603026e75e43052ee15d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:50:44,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:50:44,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:50:45,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:50:45,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:50:45,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:50:45,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:50:45,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:50:45,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:50:45,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:50:45,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:50:45,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:50:45,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:50:45,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:50:45,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:50:45,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:50:45,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:50:45,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:50:45,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:50:45,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:50:45,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:50:45,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:50:45,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:50:45,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:50:45,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:50:45,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:50:45,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:50:45,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:50:45,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:50:45,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:50:45,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:50:45,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:50:45,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:50:45,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:50:45,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:50:45,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:50:45,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:50:45,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:50:45,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:50:45,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:50:45,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:50:45,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:50:45,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:50:45,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:50:45,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:50:45,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:50:45,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:50:45,120 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:50:45,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:50:45,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:50:45,121 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:50:45,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:50:45,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:50:45,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:50:45,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:50:45,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:50:45,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:50:45,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:50:45,123 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:50:45,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:50:45,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:50:45,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:50:45,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:50:45,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:50:45,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:50:45,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:50:45,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:50:45,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:50:45,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:50:45,138 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:50:45,138 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:50:45,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:50:45,138 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04a4b1f21e140a71b13d0aa3889e8a2db465377126c9603026e75e43052ee15d [2021-12-28 03:50:45,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:50:45,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:50:45,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:50:45,472 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:50:45,473 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:50:45,474 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2021-12-28 03:50:45,545 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c87fb1900/3469292b7a7543d1a924a1ede4ffe4ae/FLAG2599982c4 [2021-12-28 03:50:46,445 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:50:46,446 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2021-12-28 03:50:46,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c87fb1900/3469292b7a7543d1a924a1ede4ffe4ae/FLAG2599982c4 [2021-12-28 03:50:46,522 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c87fb1900/3469292b7a7543d1a924a1ede4ffe4ae [2021-12-28 03:50:46,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:50:46,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:50:46,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:50:46,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:50:46,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:50:46,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:50:46" (1/1) ... [2021-12-28 03:50:46,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ebf6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:46, skipping insertion in model container [2021-12-28 03:50:46,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:50:46" (1/1) ... [2021-12-28 03:50:46,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:50:46,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:50:48,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2021-12-28 03:50:49,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:50:49,065 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:50:49,620 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2021-12-28 03:50:49,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:50:49,783 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:50:49,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49 WrapperNode [2021-12-28 03:50:49,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:50:49,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:50:49,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:50:49,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:50:49,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:49,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:50,177 INFO L137 Inliner]: procedures = 356, calls = 3806, calls flagged for inlining = 167, calls inlined = 133, statements flattened = 7285 [2021-12-28 03:50:50,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:50:50,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:50:50,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:50:50,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:50:50,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:50,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:50,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:50,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:50,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:50,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:50,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:50,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:50:50,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:50:50,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:50:50,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:50:50,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (1/1) ... [2021-12-28 03:50:50,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:50:50,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:50:50,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 03:50:50,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 03:50:50,705 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2021-12-28 03:50:50,706 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2021-12-28 03:50:50,706 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2021-12-28 03:50:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2021-12-28 03:50:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-28 03:50:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 03:50:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 03:50:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2021-12-28 03:50:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2021-12-28 03:50:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-28 03:50:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-28 03:50:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-28 03:50:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-28 03:50:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-28 03:50:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-28 03:50:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure set_signals [2021-12-28 03:50:50,708 INFO L138 BoogieDeclarations]: Found implementation of procedure set_signals [2021-12-28 03:50:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure irq_test [2021-12-28 03:50:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_test [2021-12-28 03:50:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_dma_bufs [2021-12-28 03:50:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_dma_bufs [2021-12-28 03:50:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2021-12-28 03:50:50,709 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2021-12-28 03:50:50,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 03:50:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 03:50:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure flush_chars [2021-12-28 03:50:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_chars [2021-12-28 03:50:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-12-28 03:50:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-12-28 03:50:50,710 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 03:50:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 03:50:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 03:50:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 03:50:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure tx_stop [2021-12-28 03:50:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_stop [2021-12-28 03:50:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure sca_init [2021-12-28 03:50:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure sca_init [2021-12-28 03:50:50,711 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-28 03:50:50,712 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-28 03:50:50,712 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-28 03:50:50,712 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-28 03:50:50,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 03:50:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 03:50:50,713 INFO L130 BoogieDeclarations]: Found specification of procedure chars_in_buffer [2021-12-28 03:50:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure chars_in_buffer [2021-12-28 03:50:50,713 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-28 03:50:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-28 03:50:50,714 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-28 03:50:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-28 03:50:50,714 INFO L130 BoogieDeclarations]: Found specification of procedure change_params [2021-12-28 03:50:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure change_params [2021-12-28 03:50:50,714 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-12-28 03:50:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-12-28 03:50:50,715 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-28 03:50:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-28 03:50:50,715 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2021-12-28 03:50:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2021-12-28 03:50:50,716 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 03:50:50,716 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 03:50:50,716 INFO L130 BoogieDeclarations]: Found specification of procedure set_break [2021-12-28 03:50:50,717 INFO L138 BoogieDeclarations]: Found implementation of procedure set_break [2021-12-28 03:50:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure tx_start [2021-12-28 03:50:50,717 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_start [2021-12-28 03:50:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:50:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-28 03:50:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2021-12-28 03:50:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2021-12-28 03:50:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_frame_bufs [2021-12-28 03:50:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_frame_bufs [2021-12-28 03:50:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure rx_free_frame_buffers [2021-12-28 03:50:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_free_frame_buffers [2021-12-28 03:50:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:50:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure wait_until_sent [2021-12-28 03:50:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_until_sent [2021-12-28 03:50:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-28 03:50:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-28 03:50:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 03:50:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 03:50:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure synclinkmp_cleanup [2021-12-28 03:50:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure synclinkmp_cleanup [2021-12-28 03:50:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-28 03:50:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2021-12-28 03:50:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:50:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2021-12-28 03:50:50,721 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2021-12-28 03:50:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-28 03:50:50,721 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-28 03:50:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:50:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure set_rate [2021-12-28 03:50:50,722 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rate [2021-12-28 03:50:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-28 03:50:50,722 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-28 03:50:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2021-12-28 03:50:50,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2021-12-28 03:50:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-28 03:50:50,723 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-28 03:50:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 03:50:50,723 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 03:50:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2021-12-28 03:50:50,724 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2021-12-28 03:50:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 03:50:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 03:50:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2021-12-28 03:50:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2021-12-28 03:50:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 03:50:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 03:50:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure rx_stop [2021-12-28 03:50:50,726 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_stop [2021-12-28 03:50:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_test [2021-12-28 03:50:50,726 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_test [2021-12-28 03:50:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-28 03:50:50,726 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-28 03:50:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2021-12-28 03:50:50,727 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2021-12-28 03:50:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 03:50:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-28 03:50:50,727 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-28 03:50:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 03:50:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 03:50:50,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 03:50:50,729 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-28 03:50:50,730 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-28 03:50:50,730 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2021-12-28 03:50:50,730 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2021-12-28 03:50:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure release_resources [2021-12-28 03:50:50,732 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resources [2021-12-28 03:50:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:50:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-28 03:50:50,732 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-28 03:50:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 03:50:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 03:50:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-12-28 03:50:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-12-28 03:50:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure tx_set_idle [2021-12-28 03:50:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_set_idle [2021-12-28 03:50:50,736 INFO L130 BoogieDeclarations]: Found specification of procedure set_termios [2021-12-28 03:50:50,736 INFO L138 BoogieDeclarations]: Found implementation of procedure set_termios [2021-12-28 03:50:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 03:50:50,737 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 03:50:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure write_room [2021-12-28 03:50:50,737 INFO L138 BoogieDeclarations]: Found implementation of procedure write_room [2021-12-28 03:50:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure enable_loopback [2021-12-28 03:50:50,737 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_loopback [2021-12-28 03:50:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure install [2021-12-28 03:50:50,737 INFO L138 BoogieDeclarations]: Found implementation of procedure install [2021-12-28 03:50:50,737 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2021-12-28 03:50:50,737 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2021-12-28 03:50:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 03:50:50,738 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 03:50:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure throttle [2021-12-28 03:50:50,738 INFO L138 BoogieDeclarations]: Found implementation of procedure throttle [2021-12-28 03:50:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-28 03:50:50,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-28 03:50:50,738 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 03:50:50,738 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 03:50:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load_fifo [2021-12-28 03:50:50,739 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load_fifo [2021-12-28 03:50:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-28 03:50:50,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2021-12-28 03:50:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:50:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-28 03:50:50,739 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-28 03:50:50,739 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load_dma_buffer [2021-12-28 03:50:50,740 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load_dma_buffer [2021-12-28 03:50:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure program_hw [2021-12-28 03:50:50,740 INFO L138 BoogieDeclarations]: Found implementation of procedure program_hw [2021-12-28 03:50:50,740 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2021-12-28 03:50:50,740 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2021-12-28 03:50:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 03:50:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 03:50:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure reset_port [2021-12-28 03:50:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_port [2021-12-28 03:50:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:50:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-28 03:50:50,741 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-28 03:50:50,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:50:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2021-12-28 03:50:50,742 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2021-12-28 03:50:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure register_test [2021-12-28 03:50:50,742 INFO L138 BoogieDeclarations]: Found implementation of procedure register_test [2021-12-28 03:50:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2021-12-28 03:50:50,742 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2021-12-28 03:50:50,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:50:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure hangup [2021-12-28 03:50:50,743 INFO L138 BoogieDeclarations]: Found implementation of procedure hangup [2021-12-28 03:50:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 03:50:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure get_icount [2021-12-28 03:50:50,743 INFO L138 BoogieDeclarations]: Found implementation of procedure get_icount [2021-12-28 03:50:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ops_disconnect_1 [2021-12-28 03:50:50,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ops_disconnect_1 [2021-12-28 03:50:50,743 INFO L130 BoogieDeclarations]: Found specification of procedure write_control_reg [2021-12-28 03:50:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure write_control_reg [2021-12-28 03:50:50,744 INFO L130 BoogieDeclarations]: Found specification of procedure put_char [2021-12-28 03:50:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure put_char [2021-12-28 03:50:50,744 INFO L130 BoogieDeclarations]: Found specification of procedure unthrottle [2021-12-28 03:50:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure unthrottle [2021-12-28 03:50:50,744 INFO L130 BoogieDeclarations]: Found specification of procedure tx_release [2021-12-28 03:50:50,744 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_release [2021-12-28 03:50:50,744 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-28 03:50:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-28 03:50:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-28 03:50:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-28 03:50:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_mode [2021-12-28 03:50:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_mode [2021-12-28 03:50:50,745 INFO L130 BoogieDeclarations]: Found specification of procedure rx_get_frame [2021-12-28 03:50:50,745 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_get_frame [2021-12-28 03:50:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2021-12-28 03:50:50,746 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2021-12-28 03:50:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-28 03:50:50,746 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-28 03:50:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure send_xchar [2021-12-28 03:50:50,746 INFO L138 BoogieDeclarations]: Found implementation of procedure send_xchar [2021-12-28 03:50:50,746 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-28 03:50:50,746 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-28 03:50:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2021-12-28 03:50:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2021-12-28 03:50:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2021-12-28 03:50:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2021-12-28 03:50:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg16 [2021-12-28 03:50:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg16 [2021-12-28 03:50:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-28 03:50:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-28 03:50:50,748 INFO L130 BoogieDeclarations]: Found specification of procedure get_signals [2021-12-28 03:50:50,748 INFO L138 BoogieDeclarations]: Found implementation of procedure get_signals [2021-12-28 03:50:50,748 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-28 03:50:50,748 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-28 03:50:50,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:50:50,748 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-28 03:50:50,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-28 03:50:50,748 INFO L130 BoogieDeclarations]: Found specification of procedure rx_start [2021-12-28 03:50:50,749 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_start [2021-12-28 03:50:50,749 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block [2021-12-28 03:50:50,749 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block [2021-12-28 03:50:50,749 INFO L130 BoogieDeclarations]: Found specification of procedure sanity_check [2021-12-28 03:50:50,749 INFO L138 BoogieDeclarations]: Found implementation of procedure sanity_check [2021-12-28 03:50:50,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:50:50,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:50:50,750 INFO L130 BoogieDeclarations]: Found specification of procedure read_status_reg [2021-12-28 03:50:50,750 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status_reg [2021-12-28 03:50:51,588 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:50:51,593 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:51:19,989 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:51:20,008 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:51:20,010 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 03:51:20,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:51:20 BoogieIcfgContainer [2021-12-28 03:51:20,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:51:20,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:51:20,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:51:20,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:51:20,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:50:46" (1/3) ... [2021-12-28 03:51:20,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f053d5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:51:20, skipping insertion in model container [2021-12-28 03:51:20,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:50:49" (2/3) ... [2021-12-28 03:51:20,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f053d5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:51:20, skipping insertion in model container [2021-12-28 03:51:20,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:51:20" (3/3) ... [2021-12-28 03:51:20,064 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2021-12-28 03:51:20,069 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:51:20,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:51:20,128 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:51:20,137 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 03:51:20,138 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:51:20,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 2807 states, 1985 states have (on average 1.418639798488665) internal successors, (2816), 2042 states have internal predecessors, (2816), 710 states have call successors, (710), 110 states have call predecessors, (710), 110 states have return successors, (710), 704 states have call predecessors, (710), 710 states have call successors, (710) [2021-12-28 03:51:20,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-28 03:51:20,222 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:20,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:20,223 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:20,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:20,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1191751299, now seen corresponding path program 1 times [2021-12-28 03:51:20,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:20,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144265973] [2021-12-28 03:51:20,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:20,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:20,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:20,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:20,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144265973] [2021-12-28 03:51:20,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144265973] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:20,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:20,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:51:20,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828873964] [2021-12-28 03:51:20,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:20,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:51:20,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:20,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:51:20,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:20,794 INFO L87 Difference]: Start difference. First operand has 2807 states, 1985 states have (on average 1.418639798488665) internal successors, (2816), 2042 states have internal predecessors, (2816), 710 states have call successors, (710), 110 states have call predecessors, (710), 110 states have return successors, (710), 704 states have call predecessors, (710), 710 states have call successors, (710) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:51:21,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:21,097 INFO L93 Difference]: Finished difference Result 5608 states and 8514 transitions. [2021-12-28 03:51:21,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:51:21,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-28 03:51:21,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:21,142 INFO L225 Difference]: With dead ends: 5608 [2021-12-28 03:51:21,142 INFO L226 Difference]: Without dead ends: 2800 [2021-12-28 03:51:21,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:21,173 INFO L933 BasicCegarLoop]: 4224 mSDtfsCounter, 4207 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4207 SdHoareTripleChecker+Valid, 4224 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 03:51:21,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4207 Valid, 4224 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 03:51:21,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2021-12-28 03:51:21,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 2800. [2021-12-28 03:51:21,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2800 states, 1981 states have (on average 1.4174659262998486) internal successors, (2808), 2035 states have internal predecessors, (2808), 709 states have call successors, (709), 110 states have call predecessors, (709), 109 states have return successors, (704), 698 states have call predecessors, (704), 704 states have call successors, (704) [2021-12-28 03:51:21,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2800 states to 2800 states and 4221 transitions. [2021-12-28 03:51:21,420 INFO L78 Accepts]: Start accepts. Automaton has 2800 states and 4221 transitions. Word has length 21 [2021-12-28 03:51:21,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:21,421 INFO L470 AbstractCegarLoop]: Abstraction has 2800 states and 4221 transitions. [2021-12-28 03:51:21,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:51:21,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2800 states and 4221 transitions. [2021-12-28 03:51:21,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-28 03:51:21,428 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:21,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:21,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:51:21,429 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:21,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:21,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1711631940, now seen corresponding path program 1 times [2021-12-28 03:51:21,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:21,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047639574] [2021-12-28 03:51:21,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:21,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:21,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:21,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047639574] [2021-12-28 03:51:21,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047639574] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:21,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:21,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:51:21,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592260407] [2021-12-28 03:51:21,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:21,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:51:21,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:21,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:51:21,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:21,647 INFO L87 Difference]: Start difference. First operand 2800 states and 4221 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:51:21,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:21,796 INFO L93 Difference]: Finished difference Result 2802 states and 4222 transitions. [2021-12-28 03:51:21,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:51:21,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-28 03:51:21,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:21,822 INFO L225 Difference]: With dead ends: 2802 [2021-12-28 03:51:21,823 INFO L226 Difference]: Without dead ends: 2799 [2021-12-28 03:51:21,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:21,831 INFO L933 BasicCegarLoop]: 4218 mSDtfsCounter, 4200 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4200 SdHoareTripleChecker+Valid, 4218 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 03:51:21,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4200 Valid, 4218 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 03:51:21,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2021-12-28 03:51:21,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2799. [2021-12-28 03:51:21,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 1981 states have (on average 1.4169611307420495) internal successors, (2807), 2034 states have internal predecessors, (2807), 708 states have call successors, (708), 110 states have call predecessors, (708), 109 states have return successors, (704), 698 states have call predecessors, (704), 704 states have call successors, (704) [2021-12-28 03:51:21,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 4219 transitions. [2021-12-28 03:51:21,972 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 4219 transitions. Word has length 22 [2021-12-28 03:51:21,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:21,972 INFO L470 AbstractCegarLoop]: Abstraction has 2799 states and 4219 transitions. [2021-12-28 03:51:21,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:51:21,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 4219 transitions. [2021-12-28 03:51:21,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-28 03:51:21,976 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:21,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:21,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:51:21,977 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:21,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:21,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1522194266, now seen corresponding path program 1 times [2021-12-28 03:51:21,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:21,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526942430] [2021-12-28 03:51:21,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:21,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:22,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:22,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:22,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526942430] [2021-12-28 03:51:22,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526942430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:22,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:22,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:51:22,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958189381] [2021-12-28 03:51:22,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:22,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:51:22,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:22,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:51:22,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:22,175 INFO L87 Difference]: Start difference. First operand 2799 states and 4219 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:51:22,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:22,326 INFO L93 Difference]: Finished difference Result 2801 states and 4220 transitions. [2021-12-28 03:51:22,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:51:22,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-28 03:51:22,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:22,348 INFO L225 Difference]: With dead ends: 2801 [2021-12-28 03:51:22,348 INFO L226 Difference]: Without dead ends: 2798 [2021-12-28 03:51:22,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:22,354 INFO L933 BasicCegarLoop]: 4216 mSDtfsCounter, 4197 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4197 SdHoareTripleChecker+Valid, 4216 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 03:51:22,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4197 Valid, 4216 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 03:51:22,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2021-12-28 03:51:22,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2021-12-28 03:51:22,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 1981 states have (on average 1.4164563351842503) internal successors, (2806), 2033 states have internal predecessors, (2806), 707 states have call successors, (707), 110 states have call predecessors, (707), 109 states have return successors, (704), 698 states have call predecessors, (704), 704 states have call successors, (704) [2021-12-28 03:51:22,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 4217 transitions. [2021-12-28 03:51:22,473 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 4217 transitions. Word has length 23 [2021-12-28 03:51:22,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:22,473 INFO L470 AbstractCegarLoop]: Abstraction has 2798 states and 4217 transitions. [2021-12-28 03:51:22,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:51:22,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 4217 transitions. [2021-12-28 03:51:22,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-28 03:51:22,476 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:22,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:22,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 03:51:22,477 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:22,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:22,478 INFO L85 PathProgramCache]: Analyzing trace with hash 55411199, now seen corresponding path program 1 times [2021-12-28 03:51:22,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:22,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363011633] [2021-12-28 03:51:22,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:22,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:22,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:22,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:22,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363011633] [2021-12-28 03:51:22,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363011633] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:22,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:22,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 03:51:22,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325749498] [2021-12-28 03:51:22,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:22,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 03:51:22,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:22,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 03:51:22,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:22,613 INFO L87 Difference]: Start difference. First operand 2798 states and 4217 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:51:22,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:22,868 INFO L93 Difference]: Finished difference Result 3310 states and 4949 transitions. [2021-12-28 03:51:22,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 03:51:22,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-28 03:51:22,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:22,896 INFO L225 Difference]: With dead ends: 3310 [2021-12-28 03:51:22,896 INFO L226 Difference]: Without dead ends: 3299 [2021-12-28 03:51:22,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 03:51:22,905 INFO L933 BasicCegarLoop]: 4392 mSDtfsCounter, 4101 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4101 SdHoareTripleChecker+Valid, 5210 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 03:51:22,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4101 Valid, 5210 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 03:51:22,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2021-12-28 03:51:23,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 3299. [2021-12-28 03:51:23,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3299 states, 2310 states have (on average 1.4086580086580087) internal successors, (3254), 2371 states have internal predecessors, (3254), 841 states have call successors, (841), 148 states have call predecessors, (841), 147 states have return successors, (840), 832 states have call predecessors, (840), 840 states have call successors, (840) [2021-12-28 03:51:23,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 4935 transitions. [2021-12-28 03:51:23,086 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 4935 transitions. Word has length 24 [2021-12-28 03:51:23,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:23,086 INFO L470 AbstractCegarLoop]: Abstraction has 3299 states and 4935 transitions. [2021-12-28 03:51:23,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 03:51:23,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4935 transitions. [2021-12-28 03:51:23,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-28 03:51:23,099 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:23,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:23,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 03:51:23,100 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:23,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:23,101 INFO L85 PathProgramCache]: Analyzing trace with hash 2055295418, now seen corresponding path program 1 times [2021-12-28 03:51:23,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:23,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993977242] [2021-12-28 03:51:23,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:23,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:23,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 03:51:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:23,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 03:51:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:23,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 03:51:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:23,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 03:51:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:23,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:51:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:23,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:23,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:23,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993977242] [2021-12-28 03:51:23,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993977242] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:23,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:23,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:51:23,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638446112] [2021-12-28 03:51:23,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:23,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:51:23,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:23,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:51:23,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:51:23,300 INFO L87 Difference]: Start difference. First operand 3299 states and 4935 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-28 03:51:25,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:51:33,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:51:33,492 INFO L93 Difference]: Finished difference Result 8135 states and 12118 transitions. [2021-12-28 03:51:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:51:33,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2021-12-28 03:51:33,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:51:33,525 INFO L225 Difference]: With dead ends: 8135 [2021-12-28 03:51:33,525 INFO L226 Difference]: Without dead ends: 4839 [2021-12-28 03:51:33,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:51:33,546 INFO L933 BasicCegarLoop]: 4457 mSDtfsCounter, 3878 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 3761 mSolverCounterSat, 1769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4412 SdHoareTripleChecker+Valid, 7051 SdHoareTripleChecker+Invalid, 5530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1769 IncrementalHoareTripleChecker+Valid, 3761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-12-28 03:51:33,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4412 Valid, 7051 Invalid, 5530 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1769 Valid, 3761 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2021-12-28 03:51:33,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4839 states. [2021-12-28 03:51:33,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4839 to 4832. [2021-12-28 03:51:33,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4832 states, 3397 states have (on average 1.3979982337356491) internal successors, (4749), 3480 states have internal predecessors, (4749), 1211 states have call successors, (1211), 224 states have call predecessors, (1211), 223 states have return successors, (1210), 1199 states have call predecessors, (1210), 1210 states have call successors, (1210) [2021-12-28 03:51:33,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4832 states to 4832 states and 7170 transitions. [2021-12-28 03:51:33,795 INFO L78 Accepts]: Start accepts. Automaton has 4832 states and 7170 transitions. Word has length 64 [2021-12-28 03:51:33,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:51:33,795 INFO L470 AbstractCegarLoop]: Abstraction has 4832 states and 7170 transitions. [2021-12-28 03:51:33,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-28 03:51:33,796 INFO L276 IsEmpty]: Start isEmpty. Operand 4832 states and 7170 transitions. [2021-12-28 03:51:33,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-28 03:51:33,808 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:51:33,808 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:51:33,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 03:51:33,809 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:51:33,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:51:33,809 INFO L85 PathProgramCache]: Analyzing trace with hash 2068285400, now seen corresponding path program 1 times [2021-12-28 03:51:33,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:51:33,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185320655] [2021-12-28 03:51:33,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:51:33,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:51:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:33,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 03:51:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:33,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 03:51:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:33,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 03:51:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:33,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 03:51:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:33,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:51:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:51:34,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 03:51:34,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:51:34,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185320655] [2021-12-28 03:51:34,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185320655] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:51:34,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:51:34,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:51:34,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449418594] [2021-12-28 03:51:34,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:51:34,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:51:34,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:51:34,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:51:34,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:51:34,006 INFO L87 Difference]: Start difference. First operand 4832 states and 7170 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-28 03:51:36,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []