./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.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 d62cca735e5e5c3ed49d61d09e2b8d7696fac03708570c9e23afbb5bfdcaa275 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 16:00:25,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 16:00:25,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 16:00:25,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 16:00:25,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 16:00:25,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 16:00:25,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 16:00:25,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 16:00:25,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 16:00:25,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 16:00:25,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 16:00:25,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 16:00:25,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 16:00:25,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 16:00:25,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 16:00:25,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 16:00:25,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 16:00:25,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 16:00:25,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 16:00:25,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 16:00:25,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 16:00:25,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 16:00:25,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 16:00:25,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 16:00:25,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 16:00:25,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 16:00:25,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 16:00:25,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 16:00:25,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 16:00:25,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 16:00:25,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 16:00:25,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 16:00:25,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 16:00:25,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 16:00:25,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 16:00:25,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 16:00:25,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 16:00:25,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 16:00:25,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 16:00:25,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 16:00:25,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 16:00:25,420 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 16:00:25,439 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 16:00:25,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 16:00:25,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 16:00:25,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 16:00:25,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 16:00:25,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 16:00:25,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 16:00:25,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 16:00:25,441 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 16:00:25,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 16:00:25,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 16:00:25,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 16:00:25,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 16:00:25,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 16:00:25,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 16:00:25,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 16:00:25,443 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 16:00:25,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 16:00:25,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 16:00:25,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 16:00:25,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 16:00:25,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 16:00:25,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 16:00:25,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 16:00:25,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 16:00:25,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 16:00:25,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 16:00:25,446 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 16:00:25,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 16:00:25,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 16:00:25,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 16:00:25,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d62cca735e5e5c3ed49d61d09e2b8d7696fac03708570c9e23afbb5bfdcaa275 [2021-12-22 16:00:25,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 16:00:25,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 16:00:25,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 16:00:25,681 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 16:00:25,681 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 16:00:25,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2021-12-22 16:00:25,741 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5eacbe3e/b004b09e1ea440ce8073393b5e84ed33/FLAG13fd5a565 [2021-12-22 16:00:26,476 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 16:00:26,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2021-12-22 16:00:26,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5eacbe3e/b004b09e1ea440ce8073393b5e84ed33/FLAG13fd5a565 [2021-12-22 16:00:26,772 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5eacbe3e/b004b09e1ea440ce8073393b5e84ed33 [2021-12-22 16:00:26,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 16:00:26,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 16:00:26,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 16:00:26,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 16:00:26,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 16:00:26,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:00:26" (1/1) ... [2021-12-22 16:00:26,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b5d6890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:26, skipping insertion in model container [2021-12-22 16:00:26,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:00:26" (1/1) ... [2021-12-22 16:00:26,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 16:00:26,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 16:00:28,884 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-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[361017,361030] [2021-12-22 16:00:28,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 16:00:29,058 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 16:00:29,349 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-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[361017,361030] [2021-12-22 16:00:29,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 16:00:29,492 INFO L208 MainTranslator]: Completed translation [2021-12-22 16:00:29,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:29 WrapperNode [2021-12-22 16:00:29,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 16:00:29,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 16:00:29,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 16:00:29,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 16:00:29,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:29" (1/1) ... [2021-12-22 16:00:29,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:29" (1/1) ... [2021-12-22 16:00:29,916 INFO L137 Inliner]: procedures = 359, calls = 7215, calls flagged for inlining = 183, calls inlined = 137, statements flattened = 11745 [2021-12-22 16:00:29,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 16:00:29,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 16:00:29,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 16:00:29,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 16:00:29,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:29" (1/1) ... [2021-12-22 16:00:29,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:29" (1/1) ... [2021-12-22 16:00:30,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:29" (1/1) ... [2021-12-22 16:00:30,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:29" (1/1) ... [2021-12-22 16:00:30,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:29" (1/1) ... [2021-12-22 16:00:30,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:29" (1/1) ... [2021-12-22 16:00:30,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:29" (1/1) ... [2021-12-22 16:00:30,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 16:00:30,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 16:00:30,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 16:00:30,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 16:00:30,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:29" (1/1) ... [2021-12-22 16:00:30,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 16:00:30,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 16:00:30,339 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) [2021-12-22 16:00:30,356 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 [2021-12-22 16:00:30,379 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-22 16:00:30,379 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-22 16:00:30,380 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-22 16:00:30,380 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-22 16:00:30,380 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-22 16:00:30,380 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-22 16:00:30,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 16:00:30,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 16:00:30,380 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 16:00:30,381 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 16:00:30,381 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_recv_bulk_msg [2021-12-22 16:00:30,381 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_recv_bulk_msg [2021-12-22 16:00:30,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 16:00:30,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 16:00:30,381 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_save_screen [2021-12-22 16:00:30,381 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_save_screen [2021-12-22 16:00:30,381 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_free_buffers [2021-12-22 16:00:30,382 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_free_buffers [2021-12-22 16:00:30,382 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_disconnect [2021-12-22 16:00:30,382 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_disconnect [2021-12-22 16:00:30,382 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_deinit [2021-12-22 16:00:30,382 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_deinit [2021-12-22 16:00:30,382 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_byte [2021-12-22 16:00:30,382 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_byte [2021-12-22 16:00:30,382 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 16:00:30,383 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 16:00:30,383 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-22 16:00:30,383 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-22 16:00:30,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 16:00:30,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 16:00:30,383 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_set_cursor [2021-12-22 16:00:30,383 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_set_cursor [2021-12-22 16:00:30,383 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2021-12-22 16:00:30,384 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2021-12-22 16:00:30,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-22 16:00:30,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-22 16:00:30,384 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_word [2021-12-22 16:00:30,384 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_word [2021-12-22 16:00:30,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 16:00:30,385 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 16:00:30,385 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetReg [2021-12-22 16:00:30,385 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetReg [2021-12-22 16:00:30,385 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-22 16:00:30,385 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-22 16:00:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_get_sisusb_lock_and_check [2021-12-22 16:00:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_get_sisusb_lock_and_check [2021-12-22 16:00:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 16:00:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure take_over_console [2021-12-22 16:00:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure take_over_console [2021-12-22 16:00:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_sisusb_valid [2021-12-22 16:00:30,386 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_sisusb_valid [2021-12-22 16:00:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 16:00:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegOR [2021-12-22 16:00:30,387 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegOR [2021-12-22 16:00:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_sisusb_usb_data [2021-12-22 16:00:30,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_sisusb_usb_data [2021-12-22 16:00:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-22 16:00:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_check_rbc [2021-12-22 16:00:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_check_rbc [2021-12-22 16:00:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 16:00:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 16:00:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-22 16:00:30,389 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-22 16:00:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_outurb_available [2021-12-22 16:00:30,389 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_outurb_available [2021-12-22 16:00:30,389 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_kill_all_busy [2021-12-22 16:00:30,390 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_kill_all_busy [2021-12-22 16:00:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 16:00:30,390 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 16:00:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-22 16:00:30,390 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-22 16:00:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_getidxreg [2021-12-22 16:00:30,391 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_getidxreg [2021-12-22 16:00:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-22 16:00:30,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-22 16:00:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-22 16:00:30,391 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-22 16:00:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_writeb [2021-12-22 16:00:30,391 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_writeb [2021-12-22 16:00:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 16:00:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-22 16:00:30,392 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-22 16:00:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_set_default_mode [2021-12-22 16:00:30,392 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_set_default_mode [2021-12-22 16:00:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_byte [2021-12-22 16:00:30,392 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_byte [2021-12-22 16:00:30,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 16:00:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_DisplayOn [2021-12-22 16:00:30,393 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_DisplayOn [2021-12-22 16:00:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregandor [2021-12-22 16:00:30,393 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregandor [2021-12-22 16:00:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_mem_bulk [2021-12-22 16:00:30,394 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_mem_bulk [2021-12-22 16:00:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-22 16:00:30,394 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-22 16:00:30,394 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbdummycon_init [2021-12-22 16:00:30,394 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbdummycon_init [2021-12-22 16:00:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-12-22 16:00:30,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-12-22 16:00:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 16:00:30,395 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_GetReg [2021-12-22 16:00:30,395 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_GetReg [2021-12-22 16:00:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_do_font_op [2021-12-22 16:00:30,396 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_do_font_op [2021-12-22 16:00:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_init_gfxdevice [2021-12-22 16:00:30,396 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_init_gfxdevice [2021-12-22 16:00:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegByte [2021-12-22 16:00:30,396 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegByte [2021-12-22 16:00:30,396 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_free_urbs [2021-12-22 16:00:30,396 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_free_urbs [2021-12-22 16:00:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 16:00:30,397 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 16:00:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_bridge_packet [2021-12-22 16:00:30,397 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_bridge_packet [2021-12-22 16:00:30,397 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-22 16:00:30,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-22 16:00:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-22 16:00:30,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-22 16:00:30,398 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_ioctl [2021-12-22 16:00:30,400 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_ioctl [2021-12-22 16:00:30,400 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_word [2021-12-22 16:00:30,400 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_word [2021-12-22 16:00:30,401 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_get_sisusb [2021-12-22 16:00:30,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_get_sisusb [2021-12-22 16:00:30,402 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 16:00:30,402 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 16:00:30,402 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_cursor [2021-12-22 16:00:30,403 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_cursor [2021-12-22 16:00:30,405 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_is_inactive [2021-12-22 16:00:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_is_inactive [2021-12-22 16:00:30,406 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-22 16:00:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-22 16:00:30,406 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_clear_vram [2021-12-22 16:00:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_clear_vram [2021-12-22 16:00:30,406 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_pci_config [2021-12-22 16:00:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_pci_config [2021-12-22 16:00:30,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 16:00:30,406 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-22 16:00:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-22 16:00:30,406 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_bulk_msg [2021-12-22 16:00:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_bulk_msg [2021-12-22 16:00:30,406 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-22 16:00:30,406 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-22 16:00:30,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 16:00:30,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 16:00:30,407 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_readb [2021-12-22 16:00:30,407 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_readb [2021-12-22 16:00:30,407 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregor [2021-12-22 16:00:30,407 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregor [2021-12-22 16:00:30,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 16:00:30,407 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-12-22 16:00:30,407 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-12-22 16:00:30,408 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-22 16:00:30,408 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-22 16:00:30,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 16:00:30,408 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_packet [2021-12-22 16:00:30,408 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_packet [2021-12-22 16:00:30,408 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_long [2021-12-22 16:00:30,408 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_long [2021-12-22 16:00:30,408 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_reset_text_mode [2021-12-22 16:00:30,408 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_reset_text_mode [2021-12-22 16:00:30,408 INFO L130 BoogieDeclarations]: Found specification of procedure SiSUSB_InitPtr [2021-12-22 16:00:30,409 INFO L138 BoogieDeclarations]: Found implementation of procedure SiSUSB_InitPtr [2021-12-22 16:00:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 16:00:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_pci_config [2021-12-22 16:00:30,409 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_pci_config [2021-12-22 16:00:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 16:00:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxreg [2021-12-22 16:00:30,409 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxreg [2021-12-22 16:00:30,409 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegANDOR [2021-12-22 16:00:30,409 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegANDOR [2021-12-22 16:00:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 16:00:30,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 16:00:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_wait_all_out_complete [2021-12-22 16:00:30,410 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_wait_all_out_complete [2021-12-22 16:00:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-22 16:00:30,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-22 16:00:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegAND [2021-12-22 16:00:30,410 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegAND [2021-12-22 16:00:30,410 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregand [2021-12-22 16:00:30,411 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregand [2021-12-22 16:00:30,411 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-22 16:00:30,411 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-22 16:00:30,411 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetSegmentReg [2021-12-22 16:00:30,411 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetSegmentReg [2021-12-22 16:00:30,411 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_copy_memory [2021-12-22 16:00:30,411 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_copy_memory [2021-12-22 16:00:30,411 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setreg [2021-12-22 16:00:30,411 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setreg [2021-12-22 16:00:30,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_sisusb_usb_data [2021-12-22 16:00:30,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_sisusb_usb_data [2021-12-22 16:00:30,412 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_set_start_address [2021-12-22 16:00:30,412 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_set_start_address [2021-12-22 16:00:30,412 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-22 16:00:30,412 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-22 16:00:30,412 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 16:00:30,412 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 16:00:30,412 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_WriteDAC [2021-12-22 16:00:30,413 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_WriteDAC [2021-12-22 16:00:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_mem_bulk [2021-12-22 16:00:30,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_mem_bulk [2021-12-22 16:00:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_getreg [2021-12-22 16:00:30,413 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_getreg [2021-12-22 16:00:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure SiSUSBSetMode [2021-12-22 16:00:30,413 INFO L138 BoogieDeclarations]: Found implementation of procedure SiSUSBSetMode [2021-12-22 16:00:30,413 INFO L130 BoogieDeclarations]: Found specification of procedure vc_resize [2021-12-22 16:00:30,413 INFO L138 BoogieDeclarations]: Found implementation of procedure vc_resize [2021-12-22 16:00:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_init [2021-12-22 16:00:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_init [2021-12-22 16:00:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-22 16:00:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-22 16:00:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 16:00:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_long [2021-12-22 16:00:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_long [2021-12-22 16:00:30,414 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_GetRegByte [2021-12-22 16:00:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_GetRegByte [2021-12-22 16:00:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 16:00:30,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 16:00:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_triggersr16 [2021-12-22 16:00:30,415 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_triggersr16 [2021-12-22 16:00:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-22 16:00:30,415 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-22 16:00:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 16:00:30,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 16:00:30,415 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_all_free [2021-12-22 16:00:30,416 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_all_free [2021-12-22 16:00:31,138 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 16:00:31,142 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 16:00:59,723 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 16:00:59,744 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 16:00:59,744 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 16:00:59,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:00:59 BoogieIcfgContainer [2021-12-22 16:00:59,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 16:00:59,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 16:00:59,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 16:00:59,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 16:00:59,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:00:26" (1/3) ... [2021-12-22 16:00:59,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccf72d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:00:59, skipping insertion in model container [2021-12-22 16:00:59,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:29" (2/3) ... [2021-12-22 16:00:59,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccf72d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:00:59, skipping insertion in model container [2021-12-22 16:00:59,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:00:59" (3/3) ... [2021-12-22 16:00:59,758 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2021-12-22 16:00:59,762 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 16:00:59,762 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 16:00:59,808 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 16:00:59,813 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 [2021-12-22 16:00:59,813 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 16:00:59,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 2753 states, 1882 states have (on average 1.3575982996811902) internal successors, (2555), 1909 states have internal predecessors, (2555), 765 states have call successors, (765), 104 states have call predecessors, (765), 104 states have return successors, (765), 761 states have call predecessors, (765), 765 states have call successors, (765) [2021-12-22 16:00:59,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-22 16:00:59,882 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 16:00:59,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 16:00:59,883 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 16:00:59,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 16:00:59,886 INFO L85 PathProgramCache]: Analyzing trace with hash -674524315, now seen corresponding path program 1 times [2021-12-22 16:00:59,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 16:00:59,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219954747] [2021-12-22 16:00:59,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 16:00:59,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 16:01:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:01:00,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 16:01:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:01:00,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 16:01:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:01:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 16:01:00,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 16:01:00,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219954747] [2021-12-22 16:01:00,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219954747] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 16:01:00,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 16:01:00,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 16:01:00,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814445913] [2021-12-22 16:01:00,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 16:01:00,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 16:01:00,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 16:01:00,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 16:01:00,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 16:01:00,732 INFO L87 Difference]: Start difference. First operand has 2753 states, 1882 states have (on average 1.3575982996811902) internal successors, (2555), 1909 states have internal predecessors, (2555), 765 states have call successors, (765), 104 states have call predecessors, (765), 104 states have return successors, (765), 761 states have call predecessors, (765), 765 states have call successors, (765) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-22 16:01:08,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 16:01:10,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 16:01:16,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 16:01:26,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 16:01:27,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 16:01:27,223 INFO L93 Difference]: Finished difference Result 5637 states and 8475 transitions. [2021-12-22 16:01:27,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 16:01:27,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2021-12-22 16:01:27,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 16:01:27,266 INFO L225 Difference]: With dead ends: 5637 [2021-12-22 16:01:27,266 INFO L226 Difference]: Without dead ends: 2888 [2021-12-22 16:01:27,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 16:01:27,289 INFO L933 BasicCegarLoop]: 3528 mSDtfsCounter, 1936 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 3605 mSolverCounterSat, 806 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 5602 SdHoareTripleChecker+Invalid, 4415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 3605 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2021-12-22 16:01:27,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2500 Valid, 5602 Invalid, 4415 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [806 Valid, 3605 Invalid, 4 Unknown, 0 Unchecked, 25.8s Time] [2021-12-22 16:01:27,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2021-12-22 16:01:27,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2746. [2021-12-22 16:01:27,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2746 states, 1878 states have (on average 1.356762513312034) internal successors, (2548), 1903 states have internal predecessors, (2548), 765 states have call successors, (765), 104 states have call predecessors, (765), 102 states have return successors, (759), 755 states have call predecessors, (759), 759 states have call successors, (759) [2021-12-22 16:01:27,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2746 states to 2746 states and 4072 transitions. [2021-12-22 16:01:27,474 INFO L78 Accepts]: Start accepts. Automaton has 2746 states and 4072 transitions. Word has length 19 [2021-12-22 16:01:27,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 16:01:27,474 INFO L470 AbstractCegarLoop]: Abstraction has 2746 states and 4072 transitions. [2021-12-22 16:01:27,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-22 16:01:27,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2746 states and 4072 transitions. [2021-12-22 16:01:27,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-22 16:01:27,475 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 16:01:27,476 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 16:01:27,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 16:01:27,476 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 16:01:27,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 16:01:27,477 INFO L85 PathProgramCache]: Analyzing trace with hash -34172631, now seen corresponding path program 1 times [2021-12-22 16:01:27,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 16:01:27,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379055343] [2021-12-22 16:01:27,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 16:01:27,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 16:01:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:01:27,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 16:01:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:01:27,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 16:01:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:01:27,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 16:01:27,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 16:01:27,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379055343] [2021-12-22 16:01:27,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379055343] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 16:01:27,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074210948] [2021-12-22 16:01:27,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 16:01:27,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 16:01:27,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 16:01:27,940 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 16:01:27,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 16:01:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:01:29,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 8402 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-22 16:01:29,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 16:01:29,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-22 16:01:29,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 16:01:29,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074210948] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 16:01:29,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 16:01:29,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-12-22 16:01:29,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270733536] [2021-12-22 16:01:29,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 16:01:29,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 16:01:29,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 16:01:29,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 16:01:29,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 16:01:29,610 INFO L87 Difference]: Start difference. First operand 2746 states and 4072 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-22 16:01:29,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 16:01:29,825 INFO L93 Difference]: Finished difference Result 2748 states and 4073 transitions. [2021-12-22 16:01:29,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 16:01:29,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2021-12-22 16:01:29,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 16:01:29,841 INFO L225 Difference]: With dead ends: 2748 [2021-12-22 16:01:29,841 INFO L226 Difference]: Without dead ends: 2745 [2021-12-22 16:01:29,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-22 16:01:29,846 INFO L933 BasicCegarLoop]: 4068 mSDtfsCounter, 4051 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4051 SdHoareTripleChecker+Valid, 4070 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 16:01:29,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4051 Valid, 4070 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 16:01:29,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2745 states. [2021-12-22 16:01:29,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2745 to 2745. [2021-12-22 16:01:29,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2745 states, 1878 states have (on average 1.3562300319488818) internal successors, (2547), 1902 states have internal predecessors, (2547), 764 states have call successors, (764), 104 states have call predecessors, (764), 102 states have return successors, (759), 755 states have call predecessors, (759), 759 states have call successors, (759) [2021-12-22 16:01:29,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2745 states to 2745 states and 4070 transitions. [2021-12-22 16:01:29,950 INFO L78 Accepts]: Start accepts. Automaton has 2745 states and 4070 transitions. Word has length 21 [2021-12-22 16:01:29,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 16:01:29,951 INFO L470 AbstractCegarLoop]: Abstraction has 2745 states and 4070 transitions. [2021-12-22 16:01:29,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-22 16:01:29,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2745 states and 4070 transitions. [2021-12-22 16:01:29,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-22 16:01:29,952 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 16:01:29,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 16:01:29,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 16:01:30,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 16:01:30,157 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 16:01:30,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 16:01:30,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1061720298, now seen corresponding path program 1 times [2021-12-22 16:01:30,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 16:01:30,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034879350] [2021-12-22 16:01:30,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 16:01:30,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 16:01:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:01:30,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 16:01:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:01:30,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 16:01:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:01:30,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 16:01:30,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 16:01:30,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034879350] [2021-12-22 16:01:30,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034879350] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 16:01:30,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223115908] [2021-12-22 16:01:30,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 16:01:30,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 16:01:30,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 16:01:30,600 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 16:01:30,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process