./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.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 36ffbabf76f0a0e87302d8b80308134217d4fdef380ae154dfcdec710817c6e2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:19:31,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:19:31,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:19:31,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:19:31,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:19:31,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:19:31,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:19:31,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:19:31,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:19:31,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:19:31,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:19:31,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:19:31,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:19:31,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:19:31,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:19:31,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:19:31,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:19:31,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:19:31,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:19:31,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:19:31,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:19:31,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:19:31,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:19:31,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:19:31,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:19:31,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:19:31,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:19:31,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:19:31,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:19:31,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:19:31,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:19:31,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:19:31,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:19:31,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:19:31,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:19:31,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:19:31,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:19:31,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:19:31,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:19:31,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:19:31,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:19:31,736 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:19:31,753 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:19:31,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:19:31,754 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:19:31,754 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:19:31,754 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:19:31,754 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:19:31,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:19:31,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:19:31,755 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:19:31,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:19:31,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:19:31,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:19:31,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:19:31,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:19:31,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:19:31,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:19:31,756 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:19:31,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:19:31,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:19:31,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:19:31,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:19:31,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:19:31,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:19:31,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:19:31,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:19:31,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:19:31,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:19:31,758 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:19:31,758 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:19:31,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:19:31,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:19:31,758 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36ffbabf76f0a0e87302d8b80308134217d4fdef380ae154dfcdec710817c6e2 [2021-12-21 16:19:31,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:19:31,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:19:31,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:19:31,978 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:19:31,978 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:19:31,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2021-12-21 16:19:32,034 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bd5e8095/5febcdf80d2d4dbfb9203cfbec18b8a4/FLAG089564cec [2021-12-21 16:19:32,606 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:19:32,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2021-12-21 16:19:32,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bd5e8095/5febcdf80d2d4dbfb9203cfbec18b8a4/FLAG089564cec [2021-12-21 16:19:33,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bd5e8095/5febcdf80d2d4dbfb9203cfbec18b8a4 [2021-12-21 16:19:33,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:19:33,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:19:33,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:19:33,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:19:33,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:19:33,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:19:33" (1/1) ... [2021-12-21 16:19:33,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3ee538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:19:33, skipping insertion in model container [2021-12-21 16:19:33,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:19:33" (1/1) ... [2021-12-21 16:19:33,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:19:33,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:19:33,422 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2021-12-21 16:19:33,423 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3835-3836] [2021-12-21 16:19:33,712 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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[119274,119287] [2021-12-21 16:19:34,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:19:34,315 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:19:34,422 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2021-12-21 16:19:34,424 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3835-3836] [2021-12-21 16:19:34,441 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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[119274,119287] [2021-12-21 16:19:34,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:19:34,706 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:19:34,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:19:34 WrapperNode [2021-12-21 16:19:34,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:19:34,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:19:34,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:19:34,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:19:34,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:19:34" (1/1) ... [2021-12-21 16:19:34,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:19:34" (1/1) ... [2021-12-21 16:19:34,955 INFO L137 Inliner]: procedures = 264, calls = 3505, calls flagged for inlining = 131, calls inlined = 111, statements flattened = 6309 [2021-12-21 16:19:34,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:19:34,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:19:34,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:19:34,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:19:34,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:19:34" (1/1) ... [2021-12-21 16:19:34,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:19:34" (1/1) ... [2021-12-21 16:19:34,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:19:34" (1/1) ... [2021-12-21 16:19:34,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:19:34" (1/1) ... [2021-12-21 16:19:35,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:19:34" (1/1) ... [2021-12-21 16:19:35,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:19:34" (1/1) ... [2021-12-21 16:19:35,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:19:34" (1/1) ... [2021-12-21 16:19:35,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:19:35,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:19:35,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:19:35,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:19:35,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:19:34" (1/1) ... [2021-12-21 16:19:35,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:19:35,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:19:35,200 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) [2021-12-21 16:19:35,218 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 [2021-12-21 16:19:35,228 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2021-12-21 16:19:35,229 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2021-12-21 16:19:35,229 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2021-12-21 16:19:35,229 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2021-12-21 16:19:35,229 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-12-21 16:19:35,229 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-21 16:19:35,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-21 16:19:35,229 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-21 16:19:35,230 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-21 16:19:35,230 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-21 16:19:35,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:19:35,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:19:35,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:19:35,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:19:35,230 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-21 16:19:35,230 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-21 16:19:35,231 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2021-12-21 16:19:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2021-12-21 16:19:35,231 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-21 16:19:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-21 16:19:35,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-21 16:19:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-21 16:19:35,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:19:35,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:19:35,231 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-21 16:19:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-21 16:19:35,232 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-21 16:19:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-21 16:19:35,232 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2021-12-21 16:19:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2021-12-21 16:19:35,232 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:19:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:19:35,232 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-21 16:19:35,232 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-21 16:19:35,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:19:35,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:19:35,233 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-21 16:19:35,233 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-21 16:19:35,233 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2021-12-21 16:19:35,233 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2021-12-21 16:19:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:19:35,234 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:19:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:19:35,234 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:19:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 16:19:35,234 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 16:19:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2021-12-21 16:19:35,235 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2021-12-21 16:19:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2021-12-21 16:19:35,235 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2021-12-21 16:19:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2021-12-21 16:19:35,235 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2021-12-21 16:19:35,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:19:35,236 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-21 16:19:35,236 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-21 16:19:35,237 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-21 16:19:35,237 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2021-12-21 16:19:35,237 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2021-12-21 16:19:35,237 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-21 16:19:35,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-21 16:19:35,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:19:35,238 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2021-12-21 16:19:35,238 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2021-12-21 16:19:35,238 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2021-12-21 16:19:35,238 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2021-12-21 16:19:35,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-21 16:19:35,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-21 16:19:35,238 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:19:35,239 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:19:35,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:19:35,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:19:35,239 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-21 16:19:35,239 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-21 16:19:35,239 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-21 16:19:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-21 16:19:35,240 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-21 16:19:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-21 16:19:35,240 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2021-12-21 16:19:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2021-12-21 16:19:35,240 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-21 16:19:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-21 16:19:35,240 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2021-12-21 16:19:35,240 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2021-12-21 16:19:35,241 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2021-12-21 16:19:35,241 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2021-12-21 16:19:35,241 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-21 16:19:35,241 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-21 16:19:35,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:19:35,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-21 16:19:35,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-21 16:19:35,242 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-21 16:19:35,242 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-21 16:19:35,242 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2021-12-21 16:19:35,242 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2021-12-21 16:19:35,243 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-21 16:19:35,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-21 16:19:35,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:19:35,243 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-21 16:19:35,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-21 16:19:35,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:19:35,244 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2021-12-21 16:19:35,244 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2021-12-21 16:19:35,244 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-21 16:19:35,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-21 16:19:35,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:19:35,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:19:35,244 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-21 16:19:35,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-21 16:19:35,245 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2021-12-21 16:19:35,245 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2021-12-21 16:19:35,245 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2021-12-21 16:19:35,245 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2021-12-21 16:19:35,245 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-21 16:19:35,246 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-21 16:19:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-21 16:19:35,248 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-21 16:19:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-21 16:19:35,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-21 16:19:35,248 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2021-12-21 16:19:35,249 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2021-12-21 16:19:35,249 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2021-12-21 16:19:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2021-12-21 16:19:35,250 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-21 16:19:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-21 16:19:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:19:35,254 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:19:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:19:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-21 16:19:35,254 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-21 16:19:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2021-12-21 16:19:35,254 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2021-12-21 16:19:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2021-12-21 16:19:35,255 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2021-12-21 16:19:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2021-12-21 16:19:35,255 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2021-12-21 16:19:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-21 16:19:35,255 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-21 16:19:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:19:35,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:19:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2021-12-21 16:19:35,255 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2021-12-21 16:19:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2021-12-21 16:19:35,256 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2021-12-21 16:19:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:19:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:19:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:19:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-21 16:19:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-21 16:19:35,256 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-21 16:19:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-21 16:19:35,256 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-21 16:19:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-12-21 16:19:35,257 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-12-21 16:19:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2021-12-21 16:19:35,257 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2021-12-21 16:19:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-21 16:19:35,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-21 16:19:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-21 16:19:35,257 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-21 16:19:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2021-12-21 16:19:35,257 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2021-12-21 16:19:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2021-12-21 16:19:35,258 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2021-12-21 16:19:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2021-12-21 16:19:35,258 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2021-12-21 16:19:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2021-12-21 16:19:35,258 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2021-12-21 16:19:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-21 16:19:35,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-21 16:19:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-21 16:19:35,258 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-21 16:19:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:19:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-21 16:19:35,259 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-21 16:19:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-12-21 16:19:35,259 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-12-21 16:19:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2021-12-21 16:19:35,259 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2021-12-21 16:19:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:19:35,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:19:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-21 16:19:35,259 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-21 16:19:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-21 16:19:35,260 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-21 16:19:35,885 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:19:35,887 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:19:36,038 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:19:44,022 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:19:44,042 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:19:44,042 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 16:19:44,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:19:44 BoogieIcfgContainer [2021-12-21 16:19:44,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:19:44,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:19:44,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:19:44,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:19:44,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:19:33" (1/3) ... [2021-12-21 16:19:44,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccca483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:19:44, skipping insertion in model container [2021-12-21 16:19:44,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:19:34" (2/3) ... [2021-12-21 16:19:44,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccca483 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:19:44, skipping insertion in model container [2021-12-21 16:19:44,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:19:44" (3/3) ... [2021-12-21 16:19:44,066 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2021-12-21 16:19:44,070 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:19:44,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:19:44,113 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:19:44,117 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 [2021-12-21 16:19:44,118 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:19:44,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 1447 states, 1034 states have (on average 1.3375241779497098) internal successors, (1383), 1049 states have internal predecessors, (1383), 330 states have call successors, (330), 82 states have call predecessors, (330), 81 states have return successors, (322), 322 states have call predecessors, (322), 322 states have call successors, (322) [2021-12-21 16:19:44,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-21 16:19:44,177 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:19:44,177 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:19:44,178 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:19:44,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:19:44,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1676759204, now seen corresponding path program 1 times [2021-12-21 16:19:44,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:19:44,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782392075] [2021-12-21 16:19:44,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:19:44,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:19:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:19:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:19:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 16:19:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 16:19:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:19:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:19:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 16:19:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:19:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:19:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-21 16:19:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 16:19:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-21 16:19:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-21 16:19:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 16:19:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 16:19:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 16:19:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-21 16:19:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 16:19:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 16:19:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:19:44,958 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-12-21 16:19:44,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:19:44,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782392075] [2021-12-21 16:19:44,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782392075] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:19:44,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:19:44,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:19:44,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298475801] [2021-12-21 16:19:44,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:19:44,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:19:44,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:19:44,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:19:44,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:19:44,991 INFO L87 Difference]: Start difference. First operand has 1447 states, 1034 states have (on average 1.3375241779497098) internal successors, (1383), 1049 states have internal predecessors, (1383), 330 states have call successors, (330), 82 states have call predecessors, (330), 81 states have return successors, (322), 322 states have call predecessors, (322), 322 states have call successors, (322) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-21 16:19:49,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:19:51,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:19:53,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:19:55,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:19:59,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:20:01,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:20:03,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:20:05,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:20:07,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:20:07,897 INFO L93 Difference]: Finished difference Result 4264 states and 6159 transitions. [2021-12-21 16:20:07,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:20:07,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 130 [2021-12-21 16:20:07,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:20:07,930 INFO L225 Difference]: With dead ends: 4264 [2021-12-21 16:20:07,930 INFO L226 Difference]: Without dead ends: 2781 [2021-12-21 16:20:07,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:20:07,947 INFO L933 BasicCegarLoop]: 2152 mSDtfsCounter, 2636 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 1902 mSolverCounterSat, 1513 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2869 SdHoareTripleChecker+Valid, 5729 SdHoareTripleChecker+Invalid, 3423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1513 IncrementalHoareTripleChecker+Valid, 1902 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2021-12-21 16:20:07,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2869 Valid, 5729 Invalid, 3423 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1513 Valid, 1902 Invalid, 8 Unknown, 0 Unchecked, 22.5s Time] [2021-12-21 16:20:07,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2021-12-21 16:20:08,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 2690. [2021-12-21 16:20:08,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2690 states, 1941 states have (on average 1.3312725399278722) internal successors, (2584), 1951 states have internal predecessors, (2584), 589 states have call successors, (589), 160 states have call predecessors, (589), 159 states have return successors, (588), 588 states have call predecessors, (588), 588 states have call successors, (588) [2021-12-21 16:20:08,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2690 states to 2690 states and 3761 transitions. [2021-12-21 16:20:08,180 INFO L78 Accepts]: Start accepts. Automaton has 2690 states and 3761 transitions. Word has length 130 [2021-12-21 16:20:08,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:20:08,181 INFO L470 AbstractCegarLoop]: Abstraction has 2690 states and 3761 transitions. [2021-12-21 16:20:08,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-21 16:20:08,182 INFO L276 IsEmpty]: Start isEmpty. Operand 2690 states and 3761 transitions. [2021-12-21 16:20:08,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-21 16:20:08,194 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:20:08,194 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:20:08,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:20:08,195 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:20:08,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:20:08,195 INFO L85 PathProgramCache]: Analyzing trace with hash -681871988, now seen corresponding path program 1 times [2021-12-21 16:20:08,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:20:08,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621371117] [2021-12-21 16:20:08,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:20:08,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:20:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:20:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:20:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 16:20:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 16:20:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:20:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:20:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 16:20:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:20:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:20:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-21 16:20:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 16:20:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-21 16:20:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-21 16:20:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 16:20:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 16:20:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-21 16:20:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-21 16:20:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:08,600 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-12-21 16:20:08,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:20:08,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621371117] [2021-12-21 16:20:08,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621371117] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:20:08,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:20:08,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:20:08,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480643676] [2021-12-21 16:20:08,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:20:08,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:20:08,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:20:08,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:20:08,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:20:08,603 INFO L87 Difference]: Start difference. First operand 2690 states and 3761 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-21 16:20:11,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:20:13,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:20:18,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:20:20,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:20:23,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:20:25,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:20:27,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:20:27,968 INFO L93 Difference]: Finished difference Result 7251 states and 10155 transitions. [2021-12-21 16:20:27,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-21 16:20:27,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2021-12-21 16:20:27,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:20:27,988 INFO L225 Difference]: With dead ends: 7251 [2021-12-21 16:20:27,988 INFO L226 Difference]: Without dead ends: 4594 [2021-12-21 16:20:27,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-12-21 16:20:27,998 INFO L933 BasicCegarLoop]: 2124 mSDtfsCounter, 2593 mSDsluCounter, 3816 mSDsCounter, 0 mSdLazyCounter, 3068 mSolverCounterSat, 1950 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2860 SdHoareTripleChecker+Valid, 5940 SdHoareTripleChecker+Invalid, 5024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1950 IncrementalHoareTripleChecker+Valid, 3068 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:20:27,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2860 Valid, 5940 Invalid, 5024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1950 Valid, 3068 Invalid, 6 Unknown, 0 Unchecked, 19.0s Time] [2021-12-21 16:20:28,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2021-12-21 16:20:28,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 4433. [2021-12-21 16:20:28,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 3174 states have (on average 1.316950220541903) internal successors, (4180), 3193 states have internal predecessors, (4180), 978 states have call successors, (978), 281 states have call predecessors, (978), 280 states have return successors, (977), 976 states have call predecessors, (977), 977 states have call successors, (977) [2021-12-21 16:20:28,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6135 transitions. [2021-12-21 16:20:28,111 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6135 transitions. Word has length 130 [2021-12-21 16:20:28,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:20:28,112 INFO L470 AbstractCegarLoop]: Abstraction has 4433 states and 6135 transitions. [2021-12-21 16:20:28,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-21 16:20:28,112 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6135 transitions. [2021-12-21 16:20:28,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-21 16:20:28,115 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:20:28,115 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:20:28,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:20:28,115 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:20:28,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:20:28,116 INFO L85 PathProgramCache]: Analyzing trace with hash -2103859548, now seen corresponding path program 1 times [2021-12-21 16:20:28,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:20:28,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984448908] [2021-12-21 16:20:28,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:20:28,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:20:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:20:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:20:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 16:20:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 16:20:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:20:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:20:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 16:20:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:20:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:20:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-21 16:20:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 16:20:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-21 16:20:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-21 16:20:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-21 16:20:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-21 16:20:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-21 16:20:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 16:20:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:20:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-12-21 16:20:28,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:20:28,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984448908] [2021-12-21 16:20:28,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984448908] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:20:28,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:20:28,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:20:28,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427337169] [2021-12-21 16:20:28,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:20:28,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:20:28,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:20:28,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:20:28,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:20:28,490 INFO L87 Difference]: Start difference. First operand 4433 states and 6135 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, (19), 4 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-21 16:20:30,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:20:32,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:20:36,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:20:38,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []