/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 01:19:37,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 01:19:37,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 01:19:37,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 01:19:37,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 01:19:37,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 01:19:37,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 01:19:37,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 01:19:37,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 01:19:37,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 01:19:37,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 01:19:37,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 01:19:37,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 01:19:37,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 01:19:37,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 01:19:37,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 01:19:37,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 01:19:37,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 01:19:37,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 01:19:37,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 01:19:37,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 01:19:37,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 01:19:37,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 01:19:37,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 01:19:37,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 01:19:37,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 01:19:37,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 01:19:37,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 01:19:37,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 01:19:37,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 01:19:37,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 01:19:37,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 01:19:37,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 01:19:37,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 01:19:37,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 01:19:37,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 01:19:37,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 01:19:37,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 01:19:37,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 01:19:37,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 01:19:37,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 01:19:37,976 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 01:19:37,991 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 01:19:37,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 01:19:37,992 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 01:19:37,992 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 01:19:37,992 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 01:19:37,992 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 01:19:37,992 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 01:19:37,993 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 01:19:37,993 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 01:19:37,993 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 01:19:37,993 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 01:19:37,993 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 01:19:37,994 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 01:19:37,994 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 01:19:37,994 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 01:19:37,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 01:19:37,995 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 01:19:37,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 01:19:37,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 01:19:37,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 01:19:37,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 01:19:37,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 01:19:37,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 01:19:37,996 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 01:19:37,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 01:19:37,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 01:19:37,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 01:19:37,997 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 01:19:37,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 01:19:37,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 01:19:37,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 01:19:37,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 01:19:37,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 01:19:37,998 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 01:19:37,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 01:19:37,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 01:19:37,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 01:19:37,999 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 01:19:38,294 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 01:19:38,308 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 01:19:38,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 01:19:38,313 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 01:19:38,313 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 01:19:38,314 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2019-11-24 01:19:38,385 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b066cc8a7/3324b8c62a9b4a6a864550fd9ce928b3/FLAG5e07b5951 [2019-11-24 01:19:39,229 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 01:19:39,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2019-11-24 01:19:39,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b066cc8a7/3324b8c62a9b4a6a864550fd9ce928b3/FLAG5e07b5951 [2019-11-24 01:19:39,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b066cc8a7/3324b8c62a9b4a6a864550fd9ce928b3 [2019-11-24 01:19:39,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 01:19:39,745 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 01:19:39,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 01:19:39,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 01:19:39,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 01:19:39,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:19:39" (1/1) ... [2019-11-24 01:19:39,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37aa53f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:39, skipping insertion in model container [2019-11-24 01:19:39,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:19:39" (1/1) ... [2019-11-24 01:19:39,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 01:19:39,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 01:19:42,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 01:19:42,104 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 01:19:42,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 01:19:42,798 INFO L208 MainTranslator]: Completed translation [2019-11-24 01:19:42,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:42 WrapperNode [2019-11-24 01:19:42,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 01:19:42,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 01:19:42,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 01:19:42,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 01:19:42,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:42" (1/1) ... [2019-11-24 01:19:42,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:42" (1/1) ... [2019-11-24 01:19:43,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 01:19:43,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 01:19:43,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 01:19:43,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 01:19:43,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:42" (1/1) ... [2019-11-24 01:19:43,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:42" (1/1) ... [2019-11-24 01:19:43,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:42" (1/1) ... [2019-11-24 01:19:43,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:42" (1/1) ... [2019-11-24 01:19:43,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:42" (1/1) ... [2019-11-24 01:19:43,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:42" (1/1) ... [2019-11-24 01:19:43,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:42" (1/1) ... [2019-11-24 01:19:43,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 01:19:43,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 01:19:43,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 01:19:43,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 01:19:43,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 01:19:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-11-24 01:19:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2019-11-24 01:19:43,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2019-11-24 01:19:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-24 01:19:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-24 01:19:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 01:19:43,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2019-11-24 01:19:43,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2019-11-24 01:19:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 01:19:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_rx_cb [2019-11-24 01:19:43,552 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_rx_cb [2019-11-24 01:19:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 01:19:43,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 01:19:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 01:19:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2019-11-24 01:19:43,554 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-24 01:19:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-24 01:19:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_resume [2019-11-24 01:19:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_resume [2019-11-24 01:19:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-11-24 01:19:43,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-11-24 01:19:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 01:19:43,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 01:19:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 01:19:43,556 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_post_reset [2019-11-24 01:19:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_post_reset [2019-11-24 01:19:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-24 01:19:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-11-24 01:19:43,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 01:19:43,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 01:20:48,450 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 01:20:48,451 INFO L284 CfgBuilder]: Removed 887 assume(true) statements. [2019-11-24 01:20:48,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:20:48 BoogieIcfgContainer [2019-11-24 01:20:48,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 01:20:48,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 01:20:48,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 01:20:48,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 01:20:48,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:19:39" (1/3) ... [2019-11-24 01:20:48,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae3b3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:20:48, skipping insertion in model container [2019-11-24 01:20:48,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:19:42" (2/3) ... [2019-11-24 01:20:48,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae3b3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:20:48, skipping insertion in model container [2019-11-24 01:20:48,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:20:48" (3/3) ... [2019-11-24 01:20:48,462 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2019-11-24 01:20:48,471 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 01:20:48,478 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-11-24 01:20:48,486 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-24 01:20:48,513 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 01:20:48,514 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 01:20:48,514 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 01:20:48,514 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 01:20:48,514 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 01:20:48,514 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 01:20:48,514 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 01:20:48,514 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 01:20:48,538 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states. [2019-11-24 01:20:48,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-24 01:20:48,544 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:20:48,545 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:20:48,546 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:20:48,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:20:48,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1464640456, now seen corresponding path program 1 times [2019-11-24 01:20:48,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:20:48,563 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273260166] [2019-11-24 01:20:48,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:20:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:20:49,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:20:49,257 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273260166] [2019-11-24 01:20:49,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:20:49,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 01:20:49,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153490206] [2019-11-24 01:20:49,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:20:49,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:20:49,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:20:49,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:20:49,290 INFO L87 Difference]: Start difference. First operand 247 states. Second operand 3 states. [2019-11-24 01:20:49,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:20:49,736 INFO L93 Difference]: Finished difference Result 710 states and 1165 transitions. [2019-11-24 01:20:49,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:20:49,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-24 01:20:49,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:20:49,785 INFO L225 Difference]: With dead ends: 710 [2019-11-24 01:20:49,786 INFO L226 Difference]: Without dead ends: 448 [2019-11-24 01:20:49,799 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:20:49,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2019-11-24 01:20:49,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2019-11-24 01:20:49,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2019-11-24 01:20:49,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 714 transitions. [2019-11-24 01:20:49,927 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 714 transitions. Word has length 12 [2019-11-24 01:20:49,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:20:49,927 INFO L462 AbstractCegarLoop]: Abstraction has 448 states and 714 transitions. [2019-11-24 01:20:49,927 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:20:49,928 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 714 transitions. [2019-11-24 01:20:49,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-24 01:20:49,930 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:20:49,930 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:20:49,930 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:20:49,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:20:49,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1147064677, now seen corresponding path program 1 times [2019-11-24 01:20:49,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:20:49,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638097375] [2019-11-24 01:20:49,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:20:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:20:50,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:20:50,152 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638097375] [2019-11-24 01:20:50,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 01:20:50,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 01:20:50,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887981522] [2019-11-24 01:20:50,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-24 01:20:50,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 01:20:50,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-24 01:20:50,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:20:50,155 INFO L87 Difference]: Start difference. First operand 448 states and 714 transitions. Second operand 3 states. [2019-11-24 01:20:50,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 01:20:50,182 INFO L93 Difference]: Finished difference Result 892 states and 1422 transitions. [2019-11-24 01:20:50,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-24 01:20:50,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-24 01:20:50,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 01:20:50,186 INFO L225 Difference]: With dead ends: 892 [2019-11-24 01:20:50,186 INFO L226 Difference]: Without dead ends: 449 [2019-11-24 01:20:50,189 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-24 01:20:50,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2019-11-24 01:20:50,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2019-11-24 01:20:50,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2019-11-24 01:20:50,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 715 transitions. [2019-11-24 01:20:50,227 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 715 transitions. Word has length 16 [2019-11-24 01:20:50,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 01:20:50,228 INFO L462 AbstractCegarLoop]: Abstraction has 449 states and 715 transitions. [2019-11-24 01:20:50,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-24 01:20:50,228 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 715 transitions. [2019-11-24 01:20:50,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-24 01:20:50,229 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 01:20:50,229 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 01:20:50,231 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 01:20:50,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 01:20:50,231 INFO L82 PathProgramCache]: Analyzing trace with hash -537778237, now seen corresponding path program 1 times [2019-11-24 01:20:50,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 01:20:50,232 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582887799] [2019-11-24 01:20:50,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 01:20:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:20:50,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:20:50,468 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582887799] [2019-11-24 01:20:50,469 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006124601] [2019-11-24 01:20:50,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 01:20:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 01:20:51,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 2477 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-24 01:20:51,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 01:20:51,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:20:51,982 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 01:20:52,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 01:20:52,016 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [810650028] [2019-11-24 01:20:52,042 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2019-11-24 01:20:52,042 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 01:20:52,048 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 01:20:52,055 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 01:20:52,055 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs