./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 87eb0267bb9ac47d2f064b0fef07b59fa75f143be168864f89135d42f548ac8a --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:05:46,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:05:46,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:05:46,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:05:46,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:05:46,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:05:46,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:05:46,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:05:46,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:05:46,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:05:46,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:05:46,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:05:46,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:05:46,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:05:46,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:05:46,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:05:46,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:05:46,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:05:46,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:05:46,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:05:46,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:05:46,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:05:46,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:05:46,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:05:46,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:05:46,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:05:46,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:05:46,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:05:46,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:05:46,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:05:46,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:05:46,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:05:46,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:05:46,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:05:46,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:05:46,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:05:46,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:05:46,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:05:46,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:05:46,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:05:46,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:05:46,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:05:46,183 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:05:46,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:05:46,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:05:46,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:05:46,185 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:05:46,185 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:05:46,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:05:46,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:05:46,186 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:05:46,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:05:46,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:05:46,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:05:46,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:05:46,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:05:46,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:05:46,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:05:46,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:05:46,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:05:46,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:05:46,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:05:46,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:05:46,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:05:46,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:05:46,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:05:46,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:05:46,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:05:46,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:05:46,191 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:05:46,191 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:05:46,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:05:46,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:05:46,191 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87eb0267bb9ac47d2f064b0fef07b59fa75f143be168864f89135d42f548ac8a [2021-12-16 04:05:46,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:05:46,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:05:46,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:05:46,478 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:05:46,479 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:05:46,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i [2021-12-16 04:05:46,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81a680610/d58f8ef44a04462eb7a82fb73b92e2bb/FLAG4d3928767 [2021-12-16 04:05:47,356 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:05:47,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i [2021-12-16 04:05:47,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81a680610/d58f8ef44a04462eb7a82fb73b92e2bb/FLAG4d3928767 [2021-12-16 04:05:47,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81a680610/d58f8ef44a04462eb7a82fb73b92e2bb [2021-12-16 04:05:47,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:05:47,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:05:47,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:05:47,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:05:47,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:05:47,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:05:47" (1/1) ... [2021-12-16 04:05:47,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@512da898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:47, skipping insertion in model container [2021-12-16 04:05:47,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:05:47" (1/1) ... [2021-12-16 04:05:47,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:05:47,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:05:47,994 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3825] [2021-12-16 04:05:47,995 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3826-3827] [2021-12-16 04:05:48,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i[120230,120243] [2021-12-16 04:05:48,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:05:49,034 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:05:49,102 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3825] [2021-12-16 04:05:49,104 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3826-3827] [2021-12-16 04:05:49,119 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i[120230,120243] [2021-12-16 04:05:49,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:05:49,444 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:05:49,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:49 WrapperNode [2021-12-16 04:05:49,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:05:49,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:05:49,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:05:49,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:05:49,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:49" (1/1) ... [2021-12-16 04:05:49,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:49" (1/1) ... [2021-12-16 04:05:49,721 INFO L137 Inliner]: procedures = 228, calls = 2575, calls flagged for inlining = 108, calls inlined = 106, statements flattened = 5652 [2021-12-16 04:05:49,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:05:49,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:05:49,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:05:49,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:05:49,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:49" (1/1) ... [2021-12-16 04:05:49,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:49" (1/1) ... [2021-12-16 04:05:49,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:49" (1/1) ... [2021-12-16 04:05:49,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:49" (1/1) ... [2021-12-16 04:05:49,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:49" (1/1) ... [2021-12-16 04:05:49,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:49" (1/1) ... [2021-12-16 04:05:50,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:49" (1/1) ... [2021-12-16 04:05:50,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:05:50,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:05:50,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:05:50,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:05:50,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:49" (1/1) ... [2021-12-16 04:05:50,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:05:50,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:05:50,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 04:05:50,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 04:05:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-16 04:05:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-16 04:05:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-16 04:05:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-16 04:05:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 04:05:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 04:05:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:05:50,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:05:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-16 04:05:50,164 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-16 04:05:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-16 04:05:50,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-16 04:05:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure sFlushRxFIFO [2021-12-16 04:05:50,165 INFO L138 BoogieDeclarations]: Found implementation of procedure sFlushRxFIFO [2021-12-16 04:05:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:05:50,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:05:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2021-12-16 04:05:50,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2021-12-16 04:05:50,165 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2021-12-16 04:05:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2021-12-16 04:05:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure rocket_paranoia_check [2021-12-16 04:05:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure rocket_paranoia_check [2021-12-16 04:05:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-12-16 04:05:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-12-16 04:05:50,166 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 04:05:50,166 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 04:05:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:05:50,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:05:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure rp_wait_until_sent [2021-12-16 04:05:50,167 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_wait_until_sent [2021-12-16 04:05:50,167 INFO L130 BoogieDeclarations]: Found specification of procedure sFlushTxFIFO [2021-12-16 04:05:50,167 INFO L138 BoogieDeclarations]: Found implementation of procedure sFlushTxFIFO [2021-12-16 04:05:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-16 04:05:50,168 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-16 04:05:50,168 INFO L130 BoogieDeclarations]: Found specification of procedure outsw [2021-12-16 04:05:50,168 INFO L138 BoogieDeclarations]: Found implementation of procedure outsw [2021-12-16 04:05:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:05:50,169 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:05:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure sInW [2021-12-16 04:05:50,169 INFO L138 BoogieDeclarations]: Found implementation of procedure sInW [2021-12-16 04:05:50,169 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:05:50,170 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:05:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure GetLineNumber [2021-12-16 04:05:50,170 INFO L138 BoogieDeclarations]: Found implementation of procedure GetLineNumber [2021-12-16 04:05:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-12-16 04:05:50,170 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-12-16 04:05:50,170 INFO L130 BoogieDeclarations]: Found specification of procedure rp_send_xchar [2021-12-16 04:05:50,170 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_send_xchar [2021-12-16 04:05:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure out32 [2021-12-16 04:05:50,171 INFO L138 BoogieDeclarations]: Found implementation of procedure out32 [2021-12-16 04:05:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure sInB [2021-12-16 04:05:50,171 INFO L138 BoogieDeclarations]: Found implementation of procedure sInB [2021-12-16 04:05:50,172 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2021-12-16 04:05:50,172 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2021-12-16 04:05:50,173 INFO L130 BoogieDeclarations]: Found specification of procedure rp_start [2021-12-16 04:05:50,173 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_start [2021-12-16 04:05:50,173 INFO L130 BoogieDeclarations]: Found specification of procedure sReadAiopID [2021-12-16 04:05:50,173 INFO L138 BoogieDeclarations]: Found implementation of procedure sReadAiopID [2021-12-16 04:05:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:05:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:05:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-16 04:05:50,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-16 04:05:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 04:05:50,174 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 04:05:50,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:05:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2021-12-16 04:05:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2021-12-16 04:05:50,175 INFO L130 BoogieDeclarations]: Found specification of procedure rp_hangup [2021-12-16 04:05:50,175 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_hangup [2021-12-16 04:05:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:05:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-16 04:05:50,176 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-16 04:05:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-16 04:05:50,176 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-16 04:05:50,176 INFO L130 BoogieDeclarations]: Found specification of procedure sSetInterfaceMode [2021-12-16 04:05:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure sSetInterfaceMode [2021-12-16 04:05:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-16 04:05:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-16 04:05:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure rp_write_room [2021-12-16 04:05:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_write_room [2021-12-16 04:05:50,177 INFO L130 BoogieDeclarations]: Found specification of procedure rp_tiocmset [2021-12-16 04:05:50,177 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_tiocmset [2021-12-16 04:05:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-16 04:05:50,178 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-16 04:05:50,178 INFO L130 BoogieDeclarations]: Found specification of procedure init_r_port [2021-12-16 04:05:50,178 INFO L138 BoogieDeclarations]: Found implementation of procedure init_r_port [2021-12-16 04:05:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure rp_ioctl [2021-12-16 04:05:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_ioctl [2021-12-16 04:05:50,179 INFO L130 BoogieDeclarations]: Found specification of procedure sModemReset [2021-12-16 04:05:50,179 INFO L138 BoogieDeclarations]: Found implementation of procedure sModemReset [2021-12-16 04:05:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-12-16 04:05:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-12-16 04:05:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 04:05:50,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-16 04:05:50,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-16 04:05:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-16 04:05:50,181 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-16 04:05:50,181 INFO L130 BoogieDeclarations]: Found specification of procedure rp_break [2021-12-16 04:05:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_break [2021-12-16 04:05:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 04:05:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-16 04:05:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-16 04:05:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure rp_put_char [2021-12-16 04:05:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_put_char [2021-12-16 04:05:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:05:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2021-12-16 04:05:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2021-12-16 04:05:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure rp_unthrottle [2021-12-16 04:05:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_unthrottle [2021-12-16 04:05:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-16 04:05:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-16 04:05:50,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-16 04:05:50,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-16 04:05:50,185 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-16 04:05:50,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-16 04:05:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:05:50,188 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:05:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:05:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-16 04:05:50,189 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-16 04:05:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2021-12-16 04:05:50,190 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2021-12-16 04:05:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:05:50,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:05:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:05:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-16 04:05:50,190 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-16 04:05:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:05:50,191 INFO L130 BoogieDeclarations]: Found specification of procedure sPCIModemReset [2021-12-16 04:05:50,191 INFO L138 BoogieDeclarations]: Found implementation of procedure sPCIModemReset [2021-12-16 04:05:50,191 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2021-12-16 04:05:50,191 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2021-12-16 04:05:50,191 INFO L130 BoogieDeclarations]: Found specification of procedure rp_flush_buffer [2021-12-16 04:05:50,191 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_flush_buffer [2021-12-16 04:05:50,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:05:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure rp_chars_in_buffer [2021-12-16 04:05:50,192 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_chars_in_buffer [2021-12-16 04:05:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-16 04:05:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure configure_r_port [2021-12-16 04:05:50,192 INFO L138 BoogieDeclarations]: Found implementation of procedure configure_r_port [2021-12-16 04:05:50,192 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-16 04:05:50,193 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-16 04:05:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-16 04:05:50,193 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-16 04:05:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-16 04:05:50,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-16 04:05:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure sOutW [2021-12-16 04:05:50,193 INFO L138 BoogieDeclarations]: Found implementation of procedure sOutW [2021-12-16 04:05:50,193 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-16 04:05:50,194 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-16 04:05:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure sDisInterrupts [2021-12-16 04:05:50,194 INFO L138 BoogieDeclarations]: Found implementation of procedure sDisInterrupts [2021-12-16 04:05:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure rp_set_termios [2021-12-16 04:05:50,194 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_set_termios [2021-12-16 04:05:50,194 INFO L130 BoogieDeclarations]: Found specification of procedure sOutB [2021-12-16 04:05:50,195 INFO L138 BoogieDeclarations]: Found implementation of procedure sOutB [2021-12-16 04:05:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure rp_throttle [2021-12-16 04:05:50,195 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_throttle [2021-12-16 04:05:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure rp_tiocmget [2021-12-16 04:05:50,195 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_tiocmget [2021-12-16 04:05:50,195 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_set [2021-12-16 04:05:50,195 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_set [2021-12-16 04:05:50,196 INFO L130 BoogieDeclarations]: Found specification of procedure sReadAiopNumChan [2021-12-16 04:05:50,196 INFO L138 BoogieDeclarations]: Found implementation of procedure sReadAiopNumChan [2021-12-16 04:05:50,196 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-16 04:05:50,196 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-16 04:05:50,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:05:50,196 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-16 04:05:50,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-16 04:05:50,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:05:50,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:05:50,197 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-16 04:05:50,197 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-16 04:05:50,197 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-16 04:05:50,197 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-16 04:05:50,916 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:05:50,919 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:05:51,380 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:06:58,252 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:06:58,271 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:06:58,271 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-16 04:06:58,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:06:58 BoogieIcfgContainer [2021-12-16 04:06:58,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:06:58,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:06:58,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:06:58,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:06:58,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:05:47" (1/3) ... [2021-12-16 04:06:58,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f6e3dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:06:58, skipping insertion in model container [2021-12-16 04:06:58,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:05:49" (2/3) ... [2021-12-16 04:06:58,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f6e3dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:06:58, skipping insertion in model container [2021-12-16 04:06:58,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:06:58" (3/3) ... [2021-12-16 04:06:58,283 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i [2021-12-16 04:06:58,287 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:06:58,288 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:06:58,347 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:06:58,353 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 04:06:58,353 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:06:58,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 1913 states, 1339 states have (on average 1.3756534727408514) internal successors, (1842), 1373 states have internal predecessors, (1842), 494 states have call successors, (494), 79 states have call predecessors, (494), 78 states have return successors, (489), 482 states have call predecessors, (489), 489 states have call successors, (489) [2021-12-16 04:06:58,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-16 04:06:58,417 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:06:58,418 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:06:58,418 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:06:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:06:58,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1200074208, now seen corresponding path program 1 times [2021-12-16 04:06:58,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:06:58,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010480659] [2021-12-16 04:06:58,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:06:58,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:06:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:59,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:06:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:59,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:06:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:59,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:06:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:59,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-16 04:06:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:06:59,324 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-16 04:06:59,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:06:59,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010480659] [2021-12-16 04:06:59,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010480659] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:06:59,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:06:59,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:06:59,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333303808] [2021-12-16 04:06:59,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:06:59,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:06:59,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:06:59,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:06:59,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:06:59,415 INFO L87 Difference]: Start difference. First operand has 1913 states, 1339 states have (on average 1.3756534727408514) internal successors, (1842), 1373 states have internal predecessors, (1842), 494 states have call successors, (494), 79 states have call predecessors, (494), 78 states have return successors, (489), 482 states have call predecessors, (489), 489 states have call successors, (489) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)