./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.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 bf654a6a1eca45ac77a809162568fb8018795c05fa9eb6946186269d2e2c9c25 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:40:42,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:40:42,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:40:43,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:40:43,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:40:43,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:40:43,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:40:43,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:40:43,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:40:43,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:40:43,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:40:43,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:40:43,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:40:43,078 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:40:43,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:40:43,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:40:43,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:40:43,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:40:43,085 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:40:43,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:40:43,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:40:43,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:40:43,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:40:43,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:40:43,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:40:43,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:40:43,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:40:43,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:40:43,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:40:43,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:40:43,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:40:43,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:40:43,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:40:43,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:40:43,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:40:43,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:40:43,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:40:43,104 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:40:43,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:40:43,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:40:43,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:40:43,107 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:40:43,136 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:40:43,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:40:43,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:40:43,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:40:43,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:40:43,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:40:43,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:40:43,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:40:43,137 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:40:43,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:40:43,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:40:43,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:40:43,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:40:43,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:40:43,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:40:43,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:40:43,138 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:40:43,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:40:43,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:40:43,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:40:43,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:40:43,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:40:43,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:40:43,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:40:43,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:40:43,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:40:43,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:40:43,141 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:40:43,141 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:40:43,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:40:43,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:40:43,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf654a6a1eca45ac77a809162568fb8018795c05fa9eb6946186269d2e2c9c25 [2021-12-21 16:40:43,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:40:43,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:40:43,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:40:43,405 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:40:43,405 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:40:43,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-21 16:40:43,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/934306eea/43113e1bd83045af880d4c6ff2f7d1b8/FLAG12d6ef26b [2021-12-21 16:40:44,277 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:40:44,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-21 16:40:44,334 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/934306eea/43113e1bd83045af880d4c6ff2f7d1b8/FLAG12d6ef26b [2021-12-21 16:40:44,790 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/934306eea/43113e1bd83045af880d4c6ff2f7d1b8 [2021-12-21 16:40:44,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:40:44,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:40:44,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:40:44,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:40:44,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:40:44,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:40:44" (1/1) ... [2021-12-21 16:40:44,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b8cba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:44, skipping insertion in model container [2021-12-21 16:40:44,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:40:44" (1/1) ... [2021-12-21 16:40:44,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:40:44,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:40:46,658 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[323188,323201] [2021-12-21 16:40:46,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:40:46,892 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:40:47,287 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[323188,323201] [2021-12-21 16:40:47,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:40:47,490 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:40:47,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:47 WrapperNode [2021-12-21 16:40:47,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:40:47,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:40:47,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:40:47,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:40:47,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:47" (1/1) ... [2021-12-21 16:40:47,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:47" (1/1) ... [2021-12-21 16:40:47,852 INFO L137 Inliner]: procedures = 481, calls = 4096, calls flagged for inlining = 211, calls inlined = 204, statements flattened = 8088 [2021-12-21 16:40:47,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:40:47,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:40:47,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:40:47,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:40:47,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:47" (1/1) ... [2021-12-21 16:40:47,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:47" (1/1) ... [2021-12-21 16:40:47,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:47" (1/1) ... [2021-12-21 16:40:47,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:47" (1/1) ... [2021-12-21 16:40:48,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:47" (1/1) ... [2021-12-21 16:40:48,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:47" (1/1) ... [2021-12-21 16:40:48,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:47" (1/1) ... [2021-12-21 16:40:48,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:40:48,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:40:48,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:40:48,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:40:48,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:47" (1/1) ... [2021-12-21 16:40:48,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:40:48,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:40:48,244 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 16:40:48,269 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 16:40:48,283 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2021-12-21 16:40:48,284 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2021-12-21 16:40:48,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2021-12-21 16:40:48,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2021-12-21 16:40:48,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-21 16:40:48,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-21 16:40:48,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 16:40:48,284 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 16:40:48,285 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-21 16:40:48,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-21 16:40:48,285 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2021-12-21 16:40:48,285 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2021-12-21 16:40:48,285 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2021-12-21 16:40:48,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2021-12-21 16:40:48,285 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-21 16:40:48,286 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-21 16:40:48,286 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2021-12-21 16:40:48,286 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2021-12-21 16:40:48,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:40:48,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:40:48,286 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2021-12-21 16:40:48,286 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2021-12-21 16:40:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2021-12-21 16:40:48,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2021-12-21 16:40:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2021-12-21 16:40:48,287 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2021-12-21 16:40:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2021-12-21 16:40:48,288 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2021-12-21 16:40:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-21 16:40:48,288 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-21 16:40:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-21 16:40:48,288 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-21 16:40:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister_drivers [2021-12-21 16:40:48,288 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister_drivers [2021-12-21 16:40:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2021-12-21 16:40:48,289 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2021-12-21 16:40:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-21 16:40:48,289 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-21 16:40:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_work [2021-12-21 16:40:48,289 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_work [2021-12-21 16:40:48,290 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-21 16:40:48,290 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-21 16:40:48,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2021-12-21 16:40:48,290 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2021-12-21 16:40:48,290 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2021-12-21 16:40:48,290 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2021-12-21 16:40:48,291 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2021-12-21 16:40:48,291 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2021-12-21 16:40:48,291 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2021-12-21 16:40:48,291 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2021-12-21 16:40:48,291 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-21 16:40:48,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-21 16:40:48,291 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 16:40:48,292 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 16:40:48,292 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2021-12-21 16:40:48,292 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2021-12-21 16:40:48,292 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2021-12-21 16:40:48,293 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2021-12-21 16:40:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-21 16:40:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2021-12-21 16:40:48,294 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2021-12-21 16:40:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 16:40:48,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 16:40:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:40:48,295 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:40:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2021-12-21 16:40:48,295 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2021-12-21 16:40:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:40:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-21 16:40:48,296 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-21 16:40:48,296 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-21 16:40:48,296 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-21 16:40:48,296 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2021-12-21 16:40:48,297 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2021-12-21 16:40:48,297 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 16:40:48,297 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 16:40:48,297 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2021-12-21 16:40:48,297 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2021-12-21 16:40:48,297 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-12-21 16:40:48,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-12-21 16:40:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-21 16:40:48,298 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-21 16:40:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:40:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2021-12-21 16:40:48,298 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2021-12-21 16:40:48,298 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-21 16:40:48,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-21 16:40:48,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:40:48,299 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2021-12-21 16:40:48,299 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2021-12-21 16:40:48,299 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2021-12-21 16:40:48,300 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2021-12-21 16:40:48,300 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-21 16:40:48,300 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-21 16:40:48,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:40:48,301 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-21 16:40:48,301 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-21 16:40:48,301 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2021-12-21 16:40:48,301 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2021-12-21 16:40:48,301 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-21 16:40:48,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-21 16:40:48,302 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-21 16:40:48,302 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-21 16:40:48,302 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-12-21 16:40:48,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-12-21 16:40:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-21 16:40:48,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-21 16:40:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:40:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:40:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:40:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-21 16:40:48,304 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:40:48,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:40:48,304 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 16:40:48,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 16:40:48,304 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-12-21 16:40:48,304 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-12-21 16:40:48,305 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-21 16:40:48,305 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-21 16:40:48,307 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2021-12-21 16:40:48,307 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2021-12-21 16:40:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 16:40:48,308 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 16:40:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2021-12-21 16:40:48,309 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2021-12-21 16:40:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-21 16:40:48,310 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-21 16:40:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:40:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:40:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2021-12-21 16:40:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2021-12-21 16:40:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-21 16:40:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-21 16:40:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2021-12-21 16:40:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2021-12-21 16:40:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2021-12-21 16:40:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2021-12-21 16:40:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-21 16:40:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-21 16:40:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-21 16:40:48,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-21 16:40:48,315 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-21 16:40:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-21 16:40:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-12-21 16:40:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-12-21 16:40:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:40:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:40:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:40:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:40:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2021-12-21 16:40:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2021-12-21 16:40:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2021-12-21 16:40:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2021-12-21 16:40:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-21 16:40:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-21 16:40:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:40:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:40:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-21 16:40:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-21 16:40:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:40:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:40:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-12-21 16:40:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-12-21 16:40:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2021-12-21 16:40:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2021-12-21 16:40:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_msr_changed [2021-12-21 16:40:48,318 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_msr_changed [2021-12-21 16:40:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2021-12-21 16:40:48,319 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2021-12-21 16:40:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:40:48,319 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:40:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2021-12-21 16:40:48,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2021-12-21 16:40:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2021-12-21 16:40:48,319 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2021-12-21 16:40:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-21 16:40:48,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-21 16:40:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-21 16:40:48,320 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-21 16:40:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:40:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-21 16:40:48,320 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-21 16:40:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2021-12-21 16:40:48,321 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2021-12-21 16:40:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2021-12-21 16:40:48,321 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2021-12-21 16:40:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-21 16:40:48,321 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-21 16:40:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:40:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-21 16:40:48,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-21 16:40:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2021-12-21 16:40:48,322 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2021-12-21 16:40:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:40:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2021-12-21 16:40:48,323 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2021-12-21 16:40:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-21 16:40:48,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-21 16:40:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2021-12-21 16:40:48,323 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2021-12-21 16:40:48,324 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-21 16:40:48,324 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-21 16:40:48,324 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2021-12-21 16:40:48,324 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2021-12-21 16:40:48,324 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-21 16:40:48,324 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-21 16:40:48,324 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-21 16:40:48,324 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-21 16:40:48,325 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_softint [2021-12-21 16:40:48,325 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_softint [2021-12-21 16:40:48,325 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2021-12-21 16:40:48,325 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2021-12-21 16:40:48,325 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-21 16:40:48,325 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-21 16:40:48,325 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-21 16:40:48,325 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-21 16:40:48,325 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2021-12-21 16:40:48,326 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2021-12-21 16:40:48,326 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2021-12-21 16:40:48,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2021-12-21 16:40:48,326 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2021-12-21 16:40:48,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2021-12-21 16:40:48,326 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-21 16:40:48,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-21 16:40:48,326 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2021-12-21 16:40:48,327 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2021-12-21 16:40:48,327 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-21 16:40:48,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-21 16:40:48,327 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2021-12-21 16:40:48,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2021-12-21 16:40:48,327 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2021-12-21 16:40:48,327 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2021-12-21 16:40:48,327 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-21 16:40:48,327 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-21 16:40:48,328 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-21 16:40:48,328 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-21 16:40:48,328 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:40:48,328 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:40:48,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:40:48,329 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2021-12-21 16:40:48,329 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2021-12-21 16:40:48,329 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2021-12-21 16:40:48,329 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2021-12-21 16:40:48,329 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-21 16:40:48,329 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-12-21 16:40:48,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:40:48,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:40:48,333 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-12-21 16:40:48,333 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-12-21 16:40:48,333 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2021-12-21 16:40:48,333 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2021-12-21 16:40:48,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2021-12-21 16:40:48,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2021-12-21 16:40:48,333 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2021-12-21 16:40:48,333 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2021-12-21 16:40:48,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-21 16:40:48,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-21 16:40:48,335 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2021-12-21 16:40:48,335 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2021-12-21 16:40:48,335 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_handle_sysrq_char [2021-12-21 16:40:48,335 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_handle_sysrq_char [2021-12-21 16:40:48,335 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2021-12-21 16:40:48,335 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2021-12-21 16:40:48,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_table_lock [2021-12-21 16:40:48,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_table_lock [2021-12-21 16:40:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-21 16:40:48,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-21 16:40:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_table_lock [2021-12-21 16:40:48,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_table_lock [2021-12-21 16:40:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2021-12-21 16:40:48,336 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2021-12-21 16:40:48,336 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2021-12-21 16:40:48,336 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2021-12-21 16:40:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-12-21 16:40:48,337 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-12-21 16:40:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-21 16:40:48,337 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-21 16:40:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-21 16:40:48,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-21 16:40:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2021-12-21 16:40:48,337 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2021-12-21 16:40:48,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:40:48,338 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-21 16:40:48,338 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-21 16:40:49,426 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:40:49,430 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:40:49,841 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:40:59,624 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:40:59,651 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:40:59,651 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 16:40:59,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:40:59 BoogieIcfgContainer [2021-12-21 16:40:59,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:40:59,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:40:59,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:40:59,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:40:59,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:40:44" (1/3) ... [2021-12-21 16:40:59,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14182fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:40:59, skipping insertion in model container [2021-12-21 16:40:59,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:40:47" (2/3) ... [2021-12-21 16:40:59,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14182fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:40:59, skipping insertion in model container [2021-12-21 16:40:59,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:40:59" (3/3) ... [2021-12-21 16:40:59,664 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-21 16:40:59,668 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:40:59,669 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:40:59,724 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:40:59,737 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 16:40:59,737 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:40:59,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 2411 states, 1722 states have (on average 1.3443670150987224) internal successors, (2315), 1764 states have internal predecessors, (2315), 555 states have call successors, (555), 133 states have call predecessors, (555), 132 states have return successors, (544), 531 states have call predecessors, (544), 544 states have call successors, (544) [2021-12-21 16:40:59,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-12-21 16:40:59,821 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:40:59,823 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:40:59,823 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:40:59,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:40:59,828 INFO L85 PathProgramCache]: Analyzing trace with hash 304341664, now seen corresponding path program 1 times [2021-12-21 16:40:59,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:40:59,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152606048] [2021-12-21 16:40:59,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:40:59,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:41:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:00,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:41:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:00,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:00,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:00,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:41:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:00,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:00,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:41:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:41:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:41:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:41:01,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:41:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 16:41:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 16:41:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 16:41:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 16:41:01,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-21 16:41:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-21 16:41:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 16:41:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-21 16:41:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-21 16:41:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-21 16:41:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-21 16:41:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-21 16:41:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-21 16:41:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-21 16:41:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-21 16:41:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-21 16:41:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:01,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2021-12-21 16:41:01,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:41:01,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152606048] [2021-12-21 16:41:01,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152606048] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:41:01,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:41:01,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:41:01,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951685263] [2021-12-21 16:41:01,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:41:01,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:41:01,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:41:01,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:41:01,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:41:01,577 INFO L87 Difference]: Start difference. First operand has 2411 states, 1722 states have (on average 1.3443670150987224) internal successors, (2315), 1764 states have internal predecessors, (2315), 555 states have call successors, (555), 133 states have call predecessors, (555), 132 states have return successors, (544), 531 states have call predecessors, (544), 544 states have call successors, (544) Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-12-21 16:41:05,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:41:07,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:41:14,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:41:20,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:41:22,304 WARN L534 Checker$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 16:41:27,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:41:27,277 INFO L93 Difference]: Finished difference Result 8241 states and 12466 transitions. [2021-12-21 16:41:27,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:41:27,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 278 [2021-12-21 16:41:27,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:41:27,338 INFO L225 Difference]: With dead ends: 8241 [2021-12-21 16:41:27,339 INFO L226 Difference]: Without dead ends: 5802 [2021-12-21 16:41:27,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:41:27,362 INFO L933 BasicCegarLoop]: 3727 mSDtfsCounter, 6439 mSDsluCounter, 6724 mSDsCounter, 0 mSdLazyCounter, 4018 mSolverCounterSat, 3610 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6824 SdHoareTripleChecker+Valid, 10451 SdHoareTripleChecker+Invalid, 7632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3610 IncrementalHoareTripleChecker+Valid, 4018 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:41:27,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6824 Valid, 10451 Invalid, 7632 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3610 Valid, 4018 Invalid, 4 Unknown, 0 Unchecked, 25.0s Time] [2021-12-21 16:41:27,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5802 states. [2021-12-21 16:41:27,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5802 to 5306. [2021-12-21 16:41:27,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5306 states, 3834 states have (on average 1.3367240479916536) internal successors, (5125), 3894 states have internal predecessors, (5125), 1173 states have call successors, (1173), 263 states have call predecessors, (1173), 298 states have return successors, (1375), 1166 states have call predecessors, (1375), 1164 states have call successors, (1375) [2021-12-21 16:41:27,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 7673 transitions. [2021-12-21 16:41:27,705 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 7673 transitions. Word has length 278 [2021-12-21 16:41:27,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:41:27,709 INFO L470 AbstractCegarLoop]: Abstraction has 5306 states and 7673 transitions. [2021-12-21 16:41:27,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-12-21 16:41:27,710 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 7673 transitions. [2021-12-21 16:41:27,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-12-21 16:41:27,718 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:41:27,718 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:41:27,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:41:27,719 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:41:27,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:41:27,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1013821260, now seen corresponding path program 1 times [2021-12-21 16:41:27,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:41:27,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457205760] [2021-12-21 16:41:27,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:41:27,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:41:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:41:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:41:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:41:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:41:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:41:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:41:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:41:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 16:41:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 16:41:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 16:41:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 16:41:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:41:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:41:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-21 16:41:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-21 16:41:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-21 16:41:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-21 16:41:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-21 16:41:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-21 16:41:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-21 16:41:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-21 16:41:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-21 16:41:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-21 16:41:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-21 16:41:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-21 16:41:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:41:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2021-12-21 16:41:28,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:41:28,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457205760] [2021-12-21 16:41:28,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457205760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:41:28,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:41:28,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:41:28,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905904000] [2021-12-21 16:41:28,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:41:28,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:41:28,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:41:28,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:41:28,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:41:28,577 INFO L87 Difference]: Start difference. First operand 5306 states and 7673 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2021-12-21 16:41:31,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:41:33,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []