./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.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 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:27:13,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:27:13,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:27:13,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:27:13,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:27:13,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:27:13,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:27:13,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:27:13,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:27:13,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:27:13,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:27:13,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:27:13,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:27:13,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:27:13,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:27:13,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:27:13,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:27:13,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:27:13,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:27:13,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:27:13,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:27:13,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:27:13,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:27:13,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:27:13,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:27:13,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:27:13,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:27:13,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:27:13,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:27:13,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:27:13,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:27:13,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:27:13,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:27:13,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:27:13,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:27:13,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:27:13,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:27:13,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:27:13,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:27:13,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:27:13,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:27:13,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:27:13,357 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:27:13,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:27:13,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:27:13,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:27:13,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:27:13,359 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:27:13,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:27:13,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:27:13,360 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:27:13,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:27:13,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:27:13,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:27:13,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:27:13,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:27:13,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:27:13,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:27:13,362 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:27:13,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:27:13,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:27:13,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:27:13,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:27:13,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:27:13,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:27:13,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:27:13,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:27:13,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:27:13,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:27:13,364 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:27:13,365 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:27:13,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:27:13,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:27:13,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2753d752216607180728226381b5a5c2bb1273cd3c02dbf53b55cd0db95c4306 [2021-12-16 04:27:13,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:27:13,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:27:13,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:27:13,658 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:27:13,659 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:27:13,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2021-12-16 04:27:13,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7af53e74f/fd8f889abfd1471fa37a5b12d5011371/FLAG07e833ab6 [2021-12-16 04:27:14,378 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:27:14,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2021-12-16 04:27:14,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7af53e74f/fd8f889abfd1471fa37a5b12d5011371/FLAG07e833ab6 [2021-12-16 04:27:14,737 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7af53e74f/fd8f889abfd1471fa37a5b12d5011371 [2021-12-16 04:27:14,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:27:14,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:27:14,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:27:14,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:27:14,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:27:14,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:27:14" (1/1) ... [2021-12-16 04:27:14,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d868b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:14, skipping insertion in model container [2021-12-16 04:27:14,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:27:14" (1/1) ... [2021-12-16 04:27:14,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:27:14,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:27:16,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2021-12-16 04:27:16,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:27:16,979 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:27:17,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i[277173,277186] [2021-12-16 04:27:17,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:27:17,359 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:27:17,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:17 WrapperNode [2021-12-16 04:27:17,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:27:17,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:27:17,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:27:17,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:27:17,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:17" (1/1) ... [2021-12-16 04:27:17,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:17" (1/1) ... [2021-12-16 04:27:17,640 INFO L137 Inliner]: procedures = 384, calls = 3030, calls flagged for inlining = 180, calls inlined = 148, statements flattened = 6709 [2021-12-16 04:27:17,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:27:17,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:27:17,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:27:17,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:27:17,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:17" (1/1) ... [2021-12-16 04:27:17,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:17" (1/1) ... [2021-12-16 04:27:17,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:17" (1/1) ... [2021-12-16 04:27:17,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:17" (1/1) ... [2021-12-16 04:27:17,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:17" (1/1) ... [2021-12-16 04:27:17,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:17" (1/1) ... [2021-12-16 04:27:17,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:17" (1/1) ... [2021-12-16 04:27:17,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:27:17,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:27:17,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:27:17,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:27:17,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:17" (1/1) ... [2021-12-16 04:27:17,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:27:17,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:27:17,982 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) [2021-12-16 04:27:17,999 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 [2021-12-16 04:27:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-16 04:27:18,033 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-16 04:27:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-16 04:27:18,033 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-16 04:27:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-16 04:27:18,034 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-16 04:27:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-16 04:27:18,034 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-16 04:27:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_kick_command_queue [2021-12-16 04:27:18,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_kick_command_queue [2021-12-16 04:27:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:27:18,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:27:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-16 04:27:18,035 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-16 04:27:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_flush_input_fifo [2021-12-16 04:27:18,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_flush_input_fifo [2021-12-16 04:27:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:27:18,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:27:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-16 04:27:18,035 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-16 04:27:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_config [2021-12-16 04:27:18,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_config [2021-12-16 04:27:18,036 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-16 04:27:18,036 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-16 04:27:18,036 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-16 04:27:18,036 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-16 04:27:18,036 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-12-16 04:27:18,036 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-12-16 04:27:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2021-12-16 04:27:18,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_u132_lock_of_usb_ftdi [2021-12-16 04:27:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 04:27:18,037 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 04:27:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-16 04:27:18,037 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-16 04:27:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:27:18,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:27:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-12-16 04:27:18,038 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-12-16 04:27:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:27:18,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:27:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-16 04:27:18,038 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-16 04:27:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_status_work [2021-12-16 04:27:18,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_status_work [2021-12-16 04:27:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_cancel_work [2021-12-16 04:27:18,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_cancel_work [2021-12-16 04:27:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:27:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-16 04:27:18,039 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-16 04:27:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2021-12-16 04:27:18,039 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2021-12-16 04:27:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-12-16 04:27:18,040 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-12-16 04:27:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_get_kref [2021-12-16 04:27:18,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_get_kref [2021-12-16 04:27:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:27:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-16 04:27:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-16 04:27:18,041 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-16 04:27:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2021-12-16 04:27:18,042 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2021-12-16 04:27:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_cancel_work [2021-12-16 04:27:18,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_cancel_work [2021-12-16 04:27:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ftdi_module_lock [2021-12-16 04:27:18,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ftdi_module_lock [2021-12-16 04:27:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:27:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-12-16 04:27:18,043 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-12-16 04:27:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:27:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_cancel_work [2021-12-16 04:27:18,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_cancel_work [2021-12-16 04:27:18,044 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-16 04:27:18,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-16 04:27:18,044 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-16 04:27:18,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-16 04:27:18,044 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 04:27:18,044 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 04:27:18,045 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_do_callback [2021-12-16 04:27:18,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_do_callback [2021-12-16 04:27:18,045 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_requeue_work [2021-12-16 04:27:18,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_requeue_work [2021-12-16 04:27:18,045 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-16 04:27:18,045 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-16 04:27:18,045 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-16 04:27:18,045 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-16 04:27:18,045 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-16 04:27:18,046 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-16 04:27:18,046 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-16 04:27:18,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-16 04:27:18,046 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_found_controller [2021-12-16 04:27:18,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_found_controller [2021-12-16 04:27:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_setup_controller [2021-12-16 04:27:18,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_setup_controller [2021-12-16 04:27:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_gone_away [2021-12-16 04:27:18,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_gone_away [2021-12-16 04:27:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_config [2021-12-16 04:27:18,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_config [2021-12-16 04:27:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_respond_work [2021-12-16 04:27:18,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_respond_work [2021-12-16 04:27:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 04:27:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_status_requeue_work [2021-12-16 04:27:18,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_status_requeue_work [2021-12-16 04:27:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-12-16 04:27:18,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-12-16 04:27:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-16 04:27:18,049 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-16 04:27:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:27:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-16 04:27:18,049 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-16 04:27:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_reg [2021-12-16 04:27:18,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_reg [2021-12-16 04:27:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_disconnect [2021-12-16 04:27:18,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_disconnect [2021-12-16 04:27:18,050 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_respond_queue_work [2021-12-16 04:27:18,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_respond_queue_work [2021-12-16 04:27:18,050 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write [2021-12-16 04:27:18,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write [2021-12-16 04:27:18,051 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-16 04:27:18,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-16 04:27:18,053 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_completions [2021-12-16 04:27:18,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_completions [2021-12-16 04:27:18,053 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-16 04:27:18,053 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-16 04:27:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:27:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-16 04:27:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-16 04:27:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:27:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:27:18,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_89 [2021-12-16 04:27:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_89 [2021-12-16 04:27:18,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_88 [2021-12-16 04:27:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_88 [2021-12-16 04:27:18,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_87 [2021-12-16 04:27:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_87 [2021-12-16 04:27:18,058 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_command_work [2021-12-16 04:27:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_command_work [2021-12-16 04:27:18,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-16 04:27:18,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-16 04:27:18,059 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_put_kref [2021-12-16 04:27:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_put_kref [2021-12-16 04:27:18,059 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_abandon_targets [2021-12-16 04:27:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_abandon_targets [2021-12-16 04:27:18,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:27:18,059 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_pcimem [2021-12-16 04:27:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_pcimem [2021-12-16 04:27:18,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-16 04:27:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-16 04:27:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-16 04:27:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-16 04:27:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2021-12-16 04:27:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_u132_lock_of_usb_ftdi [2021-12-16 04:27:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:27:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-12-16 04:27:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-12-16 04:27:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:27:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_response_requeue_work [2021-12-16 04:27:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_response_requeue_work [2021-12-16 04:27:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:27:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:27:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-12-16 04:27:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-12-16 04:27:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_command_queue_work [2021-12-16 04:27:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_command_queue_work [2021-12-16 04:27:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-16 04:27:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-16 04:27:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_read_pcimem [2021-12-16 04:27:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_read_pcimem [2021-12-16 04:27:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-16 04:27:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-16 04:27:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-12-16 04:27:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-12-16 04:27:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-16 04:27:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-16 04:27:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-16 04:27:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-16 04:27:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-16 04:27:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-16 04:27:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure ftdi_elan_write_reg [2021-12-16 04:27:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ftdi_elan_write_reg [2021-12-16 04:27:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ftdi_module_lock [2021-12-16 04:27:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ftdi_module_lock [2021-12-16 04:27:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-12-16 04:27:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-12-16 04:27:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:27:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:27:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:27:18,578 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:27:18,581 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:27:19,098 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:27:29,912 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:27:29,929 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:27:29,930 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:27:29,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:27:29 BoogieIcfgContainer [2021-12-16 04:27:29,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:27:29,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:27:29,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:27:29,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:27:29,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:27:14" (1/3) ... [2021-12-16 04:27:29,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b8fe53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:27:29, skipping insertion in model container [2021-12-16 04:27:29,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:27:17" (2/3) ... [2021-12-16 04:27:29,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b8fe53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:27:29, skipping insertion in model container [2021-12-16 04:27:29,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:27:29" (3/3) ... [2021-12-16 04:27:29,943 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--misc--ftdi-elan.ko-entry_point.cil.out.i [2021-12-16 04:27:29,948 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:27:29,948 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:27:30,011 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:27:30,025 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 [2021-12-16 04:27:30,025 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:27:30,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 1674 states, 1126 states have (on average 1.3996447602131439) internal successors, (1576), 1179 states have internal predecessors, (1576), 461 states have call successors, (461), 86 states have call predecessors, (461), 85 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) [2021-12-16 04:27:30,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-16 04:27:30,104 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:27:30,105 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:27:30,106 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:27:30,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:27:30,109 INFO L85 PathProgramCache]: Analyzing trace with hash 841016865, now seen corresponding path program 1 times [2021-12-16 04:27:30,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:27:30,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457356684] [2021-12-16 04:27:30,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:27:30,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:27:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:27:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:27:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:27:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:27:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:27:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:27:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:27:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:27:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:27:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:27:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:27:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:27:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:27:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:27:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:27:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 04:27:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 04:27:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 04:27:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 04:27:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:30,812 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-12-16 04:27:30,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:27:30,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457356684] [2021-12-16 04:27:30,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457356684] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:27:30,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:27:30,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:27:30,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478477951] [2021-12-16 04:27:30,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:27:30,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:27:30,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:27:30,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:27:30,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:27:30,842 INFO L87 Difference]: Start difference. First operand has 1674 states, 1126 states have (on average 1.3996447602131439) internal successors, (1576), 1179 states have internal predecessors, (1576), 461 states have call successors, (461), 86 states have call predecessors, (461), 85 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-16 04:27:32,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:27:36,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:27:40,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:27:42,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:27:43,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:27:45,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:27:47,738 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:27:54,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:27:57,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:27:57,813 INFO L93 Difference]: Finished difference Result 3652 states and 5878 transitions. [2021-12-16 04:27:57,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 04:27:57,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 135 [2021-12-16 04:27:57,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:27:57,838 INFO L225 Difference]: With dead ends: 3652 [2021-12-16 04:27:57,839 INFO L226 Difference]: Without dead ends: 1969 [2021-12-16 04:27:57,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:27:57,867 INFO L933 BasicCegarLoop]: 2345 mSDtfsCounter, 914 mSDsluCounter, 2995 mSDsCounter, 0 mSdLazyCounter, 2348 mSolverCounterSat, 1242 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 5340 SdHoareTripleChecker+Invalid, 3594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1242 IncrementalHoareTripleChecker+Valid, 2348 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2021-12-16 04:27:57,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [952 Valid, 5340 Invalid, 3594 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1242 Valid, 2348 Invalid, 4 Unknown, 0 Unchecked, 26.5s Time] [2021-12-16 04:27:57,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2021-12-16 04:27:58,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1660. [2021-12-16 04:27:58,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1660 states, 1121 states have (on average 1.392506690454951) internal successors, (1561), 1165 states have internal predecessors, (1561), 454 states have call successors, (454), 85 states have call predecessors, (454), 84 states have return successors, (445), 436 states have call predecessors, (445), 445 states have call successors, (445) [2021-12-16 04:27:58,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2460 transitions. [2021-12-16 04:27:58,036 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2460 transitions. Word has length 135 [2021-12-16 04:27:58,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:27:58,037 INFO L470 AbstractCegarLoop]: Abstraction has 1660 states and 2460 transitions. [2021-12-16 04:27:58,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-16 04:27:58,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2460 transitions. [2021-12-16 04:27:58,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-16 04:27:58,041 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:27:58,042 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:27:58,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:27:58,042 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:27:58,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:27:58,043 INFO L85 PathProgramCache]: Analyzing trace with hash -2089123881, now seen corresponding path program 1 times [2021-12-16 04:27:58,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:27:58,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852954779] [2021-12-16 04:27:58,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:27:58,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:27:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:27:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:27:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:27:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:27:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:27:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:27:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:27:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:27:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:27:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:27:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:27:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:27:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:27:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:27:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:27:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 04:27:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 04:27:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-16 04:27:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-16 04:27:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:27:58,560 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2021-12-16 04:27:58,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:27:58,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852954779] [2021-12-16 04:27:58,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852954779] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:27:58,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:27:58,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:27:58,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595365304] [2021-12-16 04:27:58,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:27:58,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:27:58,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:27:58,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:27:58,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:27:58,564 INFO L87 Difference]: Start difference. First operand 1660 states and 2460 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-16 04:28:03,846 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 [] [2021-12-16 04:28:05,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:28:10,986 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:28:12,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:28:19,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:28:22,048 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 [] [2021-12-16 04:28:25,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:28:25,500 INFO L93 Difference]: Finished difference Result 2033 states and 3176 transitions. [2021-12-16 04:28:25,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:28:25,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 135 [2021-12-16 04:28:25,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:28:25,512 INFO L225 Difference]: With dead ends: 2033 [2021-12-16 04:28:25,512 INFO L226 Difference]: Without dead ends: 2028 [2021-12-16 04:28:25,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:28:25,515 INFO L933 BasicCegarLoop]: 2335 mSDtfsCounter, 3069 mSDsluCounter, 3118 mSDsCounter, 0 mSdLazyCounter, 2494 mSolverCounterSat, 1715 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3210 SdHoareTripleChecker+Valid, 5453 SdHoareTripleChecker+Invalid, 4212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1715 IncrementalHoareTripleChecker+Valid, 2494 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2021-12-16 04:28:25,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3210 Valid, 5453 Invalid, 4212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1715 Valid, 2494 Invalid, 3 Unknown, 0 Unchecked, 26.6s Time] [2021-12-16 04:28:25,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2021-12-16 04:28:25,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 1717. [2021-12-16 04:28:25,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1162 states have (on average 1.3881239242685026) internal successors, (1613), 1206 states have internal predecessors, (1613), 461 states have call successors, (461), 94 states have call predecessors, (461), 93 states have return successors, (454), 445 states have call predecessors, (454), 454 states have call successors, (454) [2021-12-16 04:28:25,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2528 transitions. [2021-12-16 04:28:25,573 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2528 transitions. Word has length 135 [2021-12-16 04:28:25,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:28:25,574 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2528 transitions. [2021-12-16 04:28:25,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-16 04:28:25,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2528 transitions. [2021-12-16 04:28:25,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-16 04:28:25,577 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:28:25,577 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:28:25,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 04:28:25,577 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:28:25,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:28:25,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1454982344, now seen corresponding path program 1 times [2021-12-16 04:28:25,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:28:25,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028562463] [2021-12-16 04:28:25,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:28:25,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:28:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:28:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:28:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:25,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:28:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat