./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-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/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-08_1a-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 267df3d840ee451a69f2c9c23fc4c286b307e31eb8c416518f7dce9b4c82858a --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:03:14,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:03:14,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:03:14,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:03:14,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:03:14,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:03:14,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:03:14,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:03:14,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:03:14,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:03:14,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:03:14,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:03:14,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:03:14,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:03:14,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:03:14,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:03:14,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:03:14,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:03:14,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:03:14,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:03:14,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:03:14,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:03:14,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:03:14,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:03:14,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:03:14,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:03:14,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:03:14,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:03:14,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:03:14,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:03:14,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:03:14,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:03:14,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:03:14,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:03:14,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:03:14,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:03:14,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:03:14,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:03:14,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:03:14,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:03:14,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:03:14,682 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:03:14,702 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:03:14,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:03:14,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:03:14,705 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:03:14,706 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:03:14,707 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:03:14,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:03:14,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:03:14,707 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:03:14,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:03:14,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:03:14,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:03:14,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:03:14,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:03:14,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:03:14,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:03:14,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:03:14,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:03:14,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:03:14,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:03:14,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:03:14,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:03:14,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:03:14,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:03:14,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:03:14,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:03:14,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:03:14,711 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:03:14,711 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:03:14,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:03:14,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:03:14,712 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 267df3d840ee451a69f2c9c23fc4c286b307e31eb8c416518f7dce9b4c82858a [2021-12-14 18:03:14,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:03:14,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:03:14,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:03:14,977 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:03:14,979 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:03:14,980 INFO L432 ainManager$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-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-14 18:03:15,045 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5ddce2c6/1cec7073fb034fdeacc99a5b8e856762/FLAGaefc50e10 [2021-12-14 18:03:15,699 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:03:15,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-14 18:03:15,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5ddce2c6/1cec7073fb034fdeacc99a5b8e856762/FLAGaefc50e10 [2021-12-14 18:03:15,841 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5ddce2c6/1cec7073fb034fdeacc99a5b8e856762 [2021-12-14 18:03:15,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:03:15,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:03:15,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:03:15,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:03:15,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:03:15,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:03:15" (1/1) ... [2021-12-14 18:03:15,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7958cd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:15, skipping insertion in model container [2021-12-14 18:03:15,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:03:15" (1/1) ... [2021-12-14 18:03:15,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:03:15,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:03:17,871 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-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[313744,313757] [2021-12-14 18:03:17,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:03:17,970 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:03:18,310 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-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[313744,313757] [2021-12-14 18:03:18,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:03:18,444 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:03:18,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:18 WrapperNode [2021-12-14 18:03:18,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:03:18,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:03:18,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:03:18,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:03:18,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:18" (1/1) ... [2021-12-14 18:03:18,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:18" (1/1) ... [2021-12-14 18:03:18,715 INFO L137 Inliner]: procedures = 388, calls = 3920, calls flagged for inlining = 190, calls inlined = 187, statements flattened = 7932 [2021-12-14 18:03:18,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:03:18,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:03:18,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:03:18,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:03:18,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:18" (1/1) ... [2021-12-14 18:03:18,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:18" (1/1) ... [2021-12-14 18:03:18,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:18" (1/1) ... [2021-12-14 18:03:18,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:18" (1/1) ... [2021-12-14 18:03:18,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:18" (1/1) ... [2021-12-14 18:03:18,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:18" (1/1) ... [2021-12-14 18:03:18,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:18" (1/1) ... [2021-12-14 18:03:18,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:03:18,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:03:18,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:03:18,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:03:18,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:18" (1/1) ... [2021-12-14 18:03:18,958 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:03:18,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:03:19,001 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) [2021-12-14 18:03:19,086 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 [2021-12-14 18:03:19,111 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2021-12-14 18:03:19,111 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2021-12-14 18:03:19,111 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2021-12-14 18:03:19,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2021-12-14 18:03:19,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2021-12-14 18:03:19,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2021-12-14 18:03:19,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-14 18:03:19,112 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-14 18:03:19,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:03:19,112 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:03:19,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-14 18:03:19,112 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-14 18:03:19,112 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2021-12-14 18:03:19,113 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2021-12-14 18:03:19,113 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2021-12-14 18:03:19,113 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2021-12-14 18:03:19,113 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-14 18:03:19,113 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-14 18:03:19,113 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2021-12-14 18:03:19,113 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2021-12-14 18:03:19,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:03:19,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:03:19,114 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2021-12-14 18:03:19,114 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2021-12-14 18:03:19,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2021-12-14 18:03:19,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2021-12-14 18:03:19,114 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2021-12-14 18:03:19,114 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2021-12-14 18:03:19,115 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2021-12-14 18:03:19,115 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2021-12-14 18:03:19,115 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-14 18:03:19,115 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-14 18:03:19,115 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-14 18:03:19,115 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-14 18:03:19,115 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister_drivers [2021-12-14 18:03:19,115 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister_drivers [2021-12-14 18:03:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2021-12-14 18:03:19,116 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2021-12-14 18:03:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-14 18:03:19,116 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-14 18:03:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_work [2021-12-14 18:03:19,116 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_work [2021-12-14 18:03:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-14 18:03:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-14 18:03:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2021-12-14 18:03:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2021-12-14 18:03:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2021-12-14 18:03:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2021-12-14 18:03:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2021-12-14 18:03:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2021-12-14 18:03:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2021-12-14 18:03:19,118 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2021-12-14 18:03:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-14 18:03:19,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-14 18:03:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 18:03:19,118 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 18:03:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2021-12-14 18:03:19,119 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2021-12-14 18:03:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2021-12-14 18:03:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2021-12-14 18:03:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-14 18:03:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2021-12-14 18:03:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2021-12-14 18:03:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:03:19,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:03:19,120 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 18:03:19,121 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 18:03:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2021-12-14 18:03:19,121 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2021-12-14 18:03:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:03:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-14 18:03:19,121 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-14 18:03:19,121 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-14 18:03:19,122 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-14 18:03:19,122 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2021-12-14 18:03:19,122 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2021-12-14 18:03:19,122 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 18:03:19,122 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 18:03:19,122 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2021-12-14 18:03:19,123 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2021-12-14 18:03:19,123 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-12-14 18:03:19,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-12-14 18:03:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 18:03:19,124 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 18:03:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:03:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2021-12-14 18:03:19,124 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2021-12-14 18:03:19,124 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 18:03:19,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 18:03:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:03:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2021-12-14 18:03:19,125 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2021-12-14 18:03:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2021-12-14 18:03:19,125 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2021-12-14 18:03:19,125 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-14 18:03:19,126 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-14 18:03:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:03:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-14 18:03:19,126 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-14 18:03:19,126 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2021-12-14 18:03:19,127 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2021-12-14 18:03:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-14 18:03:19,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-14 18:03:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-14 18:03:19,127 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-14 18:03:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-12-14 18:03:19,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-12-14 18:03:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 18:03:19,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 18:03:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:03:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:03:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:03:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 18:03:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:03:19,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:03:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:03:19,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:03:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-12-14 18:03:19,130 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-12-14 18:03:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-14 18:03:19,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-14 18:03:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2021-12-14 18:03:19,132 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2021-12-14 18:03:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:03:19,133 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:03:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2021-12-14 18:03:19,133 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2021-12-14 18:03:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 18:03:19,138 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 18:03:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:03:19,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:03:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2021-12-14 18:03:19,138 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2021-12-14 18:03:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 18:03:19,138 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 18:03:19,138 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2021-12-14 18:03:19,138 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2021-12-14 18:03:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2021-12-14 18:03:19,139 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2021-12-14 18:03:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-14 18:03:19,139 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-14 18:03:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-14 18:03:19,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-14 18:03:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-14 18:03:19,139 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-14 18:03:19,139 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-12-14 18:03:19,139 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-12-14 18:03:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:03:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:03:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:03:19,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:03:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2021-12-14 18:03:19,140 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2021-12-14 18:03:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2021-12-14 18:03:19,140 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2021-12-14 18:03:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-14 18:03:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-14 18:03:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-14 18:03:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-14 18:03:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 18:03:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 18:03:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-14 18:03:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-14 18:03:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 18:03:19,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 18:03:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-12-14 18:03:19,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-12-14 18:03:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2021-12-14 18:03:19,142 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2021-12-14 18:03:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_msr_changed [2021-12-14 18:03:19,142 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_msr_changed [2021-12-14 18:03:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2021-12-14 18:03:19,142 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2021-12-14 18:03:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 18:03:19,143 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 18:03:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2021-12-14 18:03:19,143 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2021-12-14 18:03:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-14 18:03:19,143 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-14 18:03:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:03:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 18:03:19,143 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 18:03:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2021-12-14 18:03:19,144 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2021-12-14 18:03:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2021-12-14 18:03:19,144 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2021-12-14 18:03:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:03:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-14 18:03:19,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-14 18:03:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2021-12-14 18:03:19,144 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2021-12-14 18:03:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:03:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-14 18:03:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-14 18:03:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2021-12-14 18:03:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2021-12-14 18:03:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 18:03:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 18:03:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2021-12-14 18:03:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2021-12-14 18:03:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-14 18:03:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-14 18:03:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-14 18:03:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-14 18:03:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 18:03:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 18:03:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_softint [2021-12-14 18:03:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_softint [2021-12-14 18:03:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2021-12-14 18:03:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2021-12-14 18:03:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-14 18:03:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-14 18:03:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-14 18:03:19,146 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-14 18:03:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2021-12-14 18:03:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2021-12-14 18:03:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2021-12-14 18:03:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2021-12-14 18:03:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2021-12-14 18:03:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2021-12-14 18:03:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-14 18:03:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-14 18:03:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2021-12-14 18:03:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2021-12-14 18:03:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-14 18:03:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-14 18:03:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2021-12-14 18:03:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2021-12-14 18:03:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2021-12-14 18:03:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2021-12-14 18:03:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 18:03:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 18:03:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-14 18:03:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-14 18:03:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:03:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:03:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:03:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2021-12-14 18:03:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2021-12-14 18:03:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2021-12-14 18:03:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2021-12-14 18:03:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-14 18:03:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-12-14 18:03:19,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:03:19,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:03:19,150 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-12-14 18:03:19,152 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-12-14 18:03:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2021-12-14 18:03:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2021-12-14 18:03:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2021-12-14 18:03:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2021-12-14 18:03:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-14 18:03:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-14 18:03:19,153 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2021-12-14 18:03:19,153 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2021-12-14 18:03:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_handle_sysrq_char [2021-12-14 18:03:19,154 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_handle_sysrq_char [2021-12-14 18:03:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2021-12-14 18:03:19,154 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2021-12-14 18:03:19,154 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 18:03:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 18:03:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2021-12-14 18:03:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2021-12-14 18:03:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2021-12-14 18:03:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2021-12-14 18:03:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-12-14 18:03:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-12-14 18:03:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 18:03:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 18:03:19,155 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 18:03:19,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 18:03:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2021-12-14 18:03:19,156 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2021-12-14 18:03:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:03:19,156 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-14 18:03:19,156 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-14 18:03:19,899 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:03:19,901 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:03:20,175 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:03:28,590 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:03:28,616 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:03:28,616 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:03:28,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:03:28 BoogieIcfgContainer [2021-12-14 18:03:28,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:03:28,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:03:28,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:03:28,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:03:28,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:03:15" (1/3) ... [2021-12-14 18:03:28,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771ab7fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:03:28, skipping insertion in model container [2021-12-14 18:03:28,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:03:18" (2/3) ... [2021-12-14 18:03:28,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771ab7fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:03:28, skipping insertion in model container [2021-12-14 18:03:28,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:03:28" (3/3) ... [2021-12-14 18:03:28,628 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-14 18:03:28,632 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:03:28,632 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:03:28,678 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:03:28,684 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 [2021-12-14 18:03:28,684 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:03:28,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 2348 states, 1698 states have (on average 1.3468786808009423) internal successors, (2287), 1734 states have internal predecessors, (2287), 520 states have call successors, (520), 129 states have call predecessors, (520), 128 states have return successors, (509), 496 states have call predecessors, (509), 509 states have call successors, (509) [2021-12-14 18:03:28,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-12-14 18:03:28,766 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:03:28,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:03:28,767 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:03:28,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:03:28,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1536291652, now seen corresponding path program 1 times [2021-12-14 18:03:28,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:03:28,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317741832] [2021-12-14 18:03:28,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:03:28,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:03:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:03:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:03:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:03:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:03:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:03:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:03:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:03:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:03:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 18:03:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:03:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:03:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:03:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 18:03:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 18:03:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-14 18:03:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-14 18:03:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-14 18:03:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-14 18:03:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-14 18:03:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-14 18:03:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-14 18:03:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:29,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 18:03:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:30,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 18:03:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:30,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-14 18:03:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:30,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-14 18:03:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:30,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:30,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2021-12-14 18:03:30,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:03:30,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317741832] [2021-12-14 18:03:30,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317741832] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:03:30,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:03:30,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:03:30,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225761683] [2021-12-14 18:03:30,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:03:30,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:03:30,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:03:30,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:03:30,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:03:30,109 INFO L87 Difference]: Start difference. First operand has 2348 states, 1698 states have (on average 1.3468786808009423) internal successors, (2287), 1734 states have internal predecessors, (2287), 520 states have call successors, (520), 129 states have call predecessors, (520), 128 states have return successors, (509), 496 states have call predecessors, (509), 509 states have call successors, (509) Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-14 18:03:34,958 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 [] [2021-12-14 18:03:41,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:03:41,421 INFO L93 Difference]: Finished difference Result 5373 states and 7946 transitions. [2021-12-14 18:03:41,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:03:41,423 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 304 [2021-12-14 18:03:41,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:03:41,466 INFO L225 Difference]: With dead ends: 5373 [2021-12-14 18:03:41,466 INFO L226 Difference]: Without dead ends: 3012 [2021-12-14 18:03:41,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-14 18:03:41,486 INFO L933 BasicCegarLoop]: 3168 mSDtfsCounter, 2819 mSDsluCounter, 3763 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 2393 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2916 SdHoareTripleChecker+Valid, 6931 SdHoareTripleChecker+Invalid, 4450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2393 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-12-14 18:03:41,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2916 Valid, 6931 Invalid, 4450 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2393 Valid, 2056 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2021-12-14 18:03:41,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2021-12-14 18:03:41,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 2330. [2021-12-14 18:03:41,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2330 states, 1693 states have (on average 1.3396337861783816) internal successors, (2268), 1716 states have internal predecessors, (2268), 509 states have call successors, (509), 128 states have call predecessors, (509), 127 states have return successors, (507), 494 states have call predecessors, (507), 507 states have call successors, (507) [2021-12-14 18:03:41,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 3284 transitions. [2021-12-14 18:03:41,702 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 3284 transitions. Word has length 304 [2021-12-14 18:03:41,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:03:41,704 INFO L470 AbstractCegarLoop]: Abstraction has 2330 states and 3284 transitions. [2021-12-14 18:03:41,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-14 18:03:41,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 3284 transitions. [2021-12-14 18:03:41,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-12-14 18:03:41,716 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:03:41,717 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:03:41,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:03:41,717 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:03:41,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:03:41,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1634991194, now seen corresponding path program 1 times [2021-12-14 18:03:41,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:03:41,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72767163] [2021-12-14 18:03:41,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:03:41,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:03:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:03:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:03:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:03:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:03:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:03:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:03:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:03:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:03:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 18:03:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:42,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:03:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:03:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:03:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:03:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 18:03:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 18:03:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-14 18:03:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-14 18:03:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-14 18:03:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-14 18:03:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-14 18:03:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-14 18:03:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-14 18:03:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 18:03:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 18:03:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-14 18:03:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-14 18:03:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:03:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:03:42,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2021-12-14 18:03:42,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:03:42,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72767163] [2021-12-14 18:03:42,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72767163] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:03:42,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:03:42,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 18:03:42,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080993755] [2021-12-14 18:03:42,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:03:42,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 18:03:42,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:03:42,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 18:03:42,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-14 18:03:42,544 INFO L87 Difference]: Start difference. First operand 2330 states and 3284 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-14 18:03:47,076 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 [] [2021-12-14 18:03:59,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:03:59,953 INFO L93 Difference]: Finished difference Result 8252 states and 12087 transitions. [2021-12-14 18:03:59,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 18:03:59,954 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 304 [2021-12-14 18:03:59,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:03:59,987 INFO L225 Difference]: With dead ends: 8252 [2021-12-14 18:03:59,987 INFO L226 Difference]: Without dead ends: 5959 [2021-12-14 18:04:00,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-14 18:04:00,002 INFO L933 BasicCegarLoop]: 4006 mSDtfsCounter, 8245 mSDsluCounter, 7436 mSDsCounter, 0 mSdLazyCounter, 4310 mSolverCounterSat, 5040 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8620 SdHoareTripleChecker+Valid, 11442 SdHoareTripleChecker+Invalid, 9351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5040 IncrementalHoareTripleChecker+Valid, 4310 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2021-12-14 18:04:00,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8620 Valid, 11442 Invalid, 9351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5040 Valid, 4310 Invalid, 1 Unknown, 0 Unchecked, 16.9s Time] [2021-12-14 18:04:00,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2021-12-14 18:04:00,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 4610. [2021-12-14 18:04:00,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 3362 states have (on average 1.3417608566329566) internal successors, (4511), 3407 states have internal predecessors, (4511), 990 states have call successors, (990), 255 states have call predecessors, (990), 257 states have return successors, (1011), 965 states have call predecessors, (1011), 988 states have call successors, (1011) [2021-12-14 18:04:00,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 6512 transitions. [2021-12-14 18:04:00,171 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 6512 transitions. Word has length 304 [2021-12-14 18:04:00,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:04:00,173 INFO L470 AbstractCegarLoop]: Abstraction has 4610 states and 6512 transitions. [2021-12-14 18:04:00,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-14 18:04:00,174 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 6512 transitions. [2021-12-14 18:04:00,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-12-14 18:04:00,185 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:04:00,186 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:04:00,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:04:00,186 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:04:00,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:04:00,187 INFO L85 PathProgramCache]: Analyzing trace with hash -466476478, now seen corresponding path program 1 times [2021-12-14 18:04:00,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:04:00,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141961426] [2021-12-14 18:04:00,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:04:00,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:04:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:04:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:04:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:04:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:04:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:04:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:04:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:04:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:04:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:04:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:04:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:04:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:04:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:04:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:04:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:04:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:04:00,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:04:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:04:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:04:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:04:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:04:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:04:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:04:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:04:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-14 18:04:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:04:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:04:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:04:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:04:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:04:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:04:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:04:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:04:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:04:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 18:04:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 18:04:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-14 18:04:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-14 18:04:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-14 18:04:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-14 18:04:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-14 18:04:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-14 18:04:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-14 18:04:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-14 18:04:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 18:04:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-14 18:04:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:00,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-14 18:04:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:01,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-14 18:04:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:01,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-14 18:04:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:01,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:04:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:01,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:04:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:04:01,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2021-12-14 18:04:01,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:04:01,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141961426] [2021-12-14 18:04:01,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141961426] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:04:01,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:04:01,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 18:04:01,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368772640] [2021-12-14 18:04:01,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:04:01,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 18:04:01,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:04:01,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 18:04:01,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-14 18:04:01,039 INFO L87 Difference]: Start difference. First operand 4610 states and 6512 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-14 18:04:06,714 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 []