./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.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 4bbc89768c1756f5fd8f2614e188ba9760b890a82deece54a04c4b385a5749d3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 14:48:23,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 14:48:23,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 14:48:23,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 14:48:23,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 14:48:23,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 14:48:23,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 14:48:23,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 14:48:23,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 14:48:23,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 14:48:23,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 14:48:23,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 14:48:23,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 14:48:23,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 14:48:23,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 14:48:23,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 14:48:23,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 14:48:23,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 14:48:23,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 14:48:23,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 14:48:23,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 14:48:23,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 14:48:23,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 14:48:23,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 14:48:23,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 14:48:23,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 14:48:23,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 14:48:23,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 14:48:23,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 14:48:23,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 14:48:23,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 14:48:23,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 14:48:23,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 14:48:23,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 14:48:23,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 14:48:23,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 14:48:23,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 14:48:23,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 14:48:23,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 14:48:23,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 14:48:23,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 14:48:23,709 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 14:48:23,736 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 14:48:23,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 14:48:23,737 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 14:48:23,737 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 14:48:23,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 14:48:23,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 14:48:23,739 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 14:48:23,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 14:48:23,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 14:48:23,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 14:48:23,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 14:48:23,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 14:48:23,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 14:48:23,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 14:48:23,741 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 14:48:23,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 14:48:23,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 14:48:23,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 14:48:23,741 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 14:48:23,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 14:48:23,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 14:48:23,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 14:48:23,742 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 14:48:23,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 14:48:23,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 14:48:23,742 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 14:48:23,742 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 14:48:23,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 14:48:23,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 14:48:23,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bbc89768c1756f5fd8f2614e188ba9760b890a82deece54a04c4b385a5749d3 [2021-11-06 14:48:23,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 14:48:24,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 14:48:24,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 14:48:24,004 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 14:48:24,006 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 14:48:24,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i [2021-11-06 14:48:24,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f128a1b60/3312447772b24bc6a07dfdde56f94b9a/FLAGb05a50809 [2021-11-06 14:48:24,773 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 14:48:24,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i [2021-11-06 14:48:24,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f128a1b60/3312447772b24bc6a07dfdde56f94b9a/FLAGb05a50809 [2021-11-06 14:48:24,872 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f128a1b60/3312447772b24bc6a07dfdde56f94b9a [2021-11-06 14:48:24,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 14:48:24,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 14:48:24,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 14:48:24,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 14:48:24,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 14:48:24,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:48:24" (1/1) ... [2021-11-06 14:48:24,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7d328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:48:24, skipping insertion in model container [2021-11-06 14:48:24,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:48:24" (1/1) ... [2021-11-06 14:48:24,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 14:48:24,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 14:48:25,417 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4296] [2021-11-06 14:48:25,418 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4297-4298] [2021-11-06 14:48:25,941 WARN L228 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_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i[135082,135095] [2021-11-06 14:48:27,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 14:48:27,073 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 14:48:27,119 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4296] [2021-11-06 14:48:27,119 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4297-4298] [2021-11-06 14:48:27,130 WARN L228 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_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i[135082,135095] [2021-11-06 14:48:27,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 14:48:27,527 INFO L208 MainTranslator]: Completed translation [2021-11-06 14:48:27,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:48:27 WrapperNode [2021-11-06 14:48:27,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 14:48:27,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 14:48:27,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 14:48:27,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 14:48:27,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:48:27" (1/1) ... [2021-11-06 14:48:27,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:48:27" (1/1) ... [2021-11-06 14:48:29,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 14:48:29,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 14:48:29,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 14:48:29,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 14:48:29,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:48:27" (1/1) ... [2021-11-06 14:48:29,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:48:27" (1/1) ... [2021-11-06 14:48:29,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:48:27" (1/1) ... [2021-11-06 14:48:29,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:48:27" (1/1) ... [2021-11-06 14:48:30,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:48:27" (1/1) ... [2021-11-06 14:48:30,707 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:48:27" (1/1) ... [2021-11-06 14:48:30,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:48:27" (1/1) ... [2021-11-06 14:48:31,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 14:48:31,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 14:48:31,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 14:48:31,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 14:48:31,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:48:27" (1/1) ... [2021-11-06 14:48:31,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 14:48:31,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 14:48:31,081 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) [2021-11-06 14:48:31,111 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 [2021-11-06 14:48:31,140 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-06 14:48:31,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 14:48:31,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 14:48:31,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 14:48:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 14:48:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 14:48:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 14:48:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-06 14:48:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 14:48:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 14:48:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 14:48:31,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 14:48:31,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 14:48:31,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 14:48:31,142 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 14:48:31,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 14:48:31,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 14:48:31,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 14:56:55,025 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 2 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,026 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume __copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,026 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##335: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 2 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,027 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##334: assume __copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,027 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##353: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,027 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##354: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 2 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,027 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##490: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 2 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,027 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##489: assume __copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,027 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##551: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,027 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##552: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 2 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,028 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##508: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,028 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##509: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 2 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,028 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##577: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 2 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,028 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##576: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,029 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L4763-4: __copy_from_user_nocheck_#t~ret282 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret282 && __copy_from_user_nocheck_#t~ret282 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~10 := __copy_from_user_nocheck_#t~ret282;havoc __copy_from_user_nocheck_#t~ret282; [2021-11-06 14:56:55,029 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L4763-5: __copy_from_user_nocheck_#t~ret283 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret283 && __copy_from_user_nocheck_#t~ret283 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~6 := __copy_from_user_nocheck_#t~ret283;havoc __copy_from_user_nocheck_#t~ret283; [2021-11-06 14:56:55,029 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L4763-36: __copy_from_user_nocheck_#t~ret283 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret283 && __copy_from_user_nocheck_#t~ret283 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~6 := __copy_from_user_nocheck_#t~ret283;havoc __copy_from_user_nocheck_#t~ret283; [2021-11-06 14:56:55,029 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L4763-37: __copy_to_user_nocheck_#t~ret288 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret288 && __copy_to_user_nocheck_#t~ret288 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~11 := __copy_to_user_nocheck_#t~ret288;havoc __copy_to_user_nocheck_#t~ret288; [2021-11-06 14:56:55,029 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L4763-35: __copy_from_user_nocheck_#t~ret282 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret282 && __copy_from_user_nocheck_#t~ret282 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~10 := __copy_from_user_nocheck_#t~ret282;havoc __copy_from_user_nocheck_#t~ret282; [2021-11-06 14:56:55,030 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L4763-38: __copy_to_user_nocheck_#t~ret289 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret289 && __copy_to_user_nocheck_#t~ret289 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~7 := __copy_to_user_nocheck_#t~ret289;havoc __copy_to_user_nocheck_#t~ret289; [2021-11-06 14:56:55,030 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L4763-52: __copy_to_user_nocheck_#t~ret288 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret288 && __copy_to_user_nocheck_#t~ret288 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~11 := __copy_to_user_nocheck_#t~ret288;havoc __copy_to_user_nocheck_#t~ret288; [2021-11-06 14:56:55,030 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L4763-53: __copy_to_user_nocheck_#t~ret289 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret289 && __copy_to_user_nocheck_#t~ret289 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~7 := __copy_to_user_nocheck_#t~ret289;havoc __copy_to_user_nocheck_#t~ret289; [2021-11-06 14:56:55,030 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L4763-50: __copy_from_user_nocheck_#t~ret282 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret282 && __copy_from_user_nocheck_#t~ret282 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~10 := __copy_from_user_nocheck_#t~ret282;havoc __copy_from_user_nocheck_#t~ret282; [2021-11-06 14:56:55,031 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L4763-51: __copy_from_user_nocheck_#t~ret283 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret283 && __copy_from_user_nocheck_#t~ret283 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~6 := __copy_from_user_nocheck_#t~ret283;havoc __copy_from_user_nocheck_#t~ret283; [2021-11-06 14:56:55,031 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L4763-56: __copy_to_user_nocheck_#t~ret289 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret289 && __copy_to_user_nocheck_#t~ret289 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~7 := __copy_to_user_nocheck_#t~ret289;havoc __copy_to_user_nocheck_#t~ret289; [2021-11-06 14:56:55,031 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L4763-55: __copy_to_user_nocheck_#t~ret288 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret288 && __copy_to_user_nocheck_#t~ret288 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~11 := __copy_to_user_nocheck_#t~ret288;havoc __copy_to_user_nocheck_#t~ret288; [2021-11-06 14:56:55,031 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L4763-58: __copy_to_user_nocheck_#t~ret288 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret288 && __copy_to_user_nocheck_#t~ret288 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~11 := __copy_to_user_nocheck_#t~ret288;havoc __copy_to_user_nocheck_#t~ret288; [2021-11-06 14:56:55,032 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L4763-59: __copy_to_user_nocheck_#t~ret289 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret289 && __copy_to_user_nocheck_#t~ret289 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~7 := __copy_to_user_nocheck_#t~ret289;havoc __copy_to_user_nocheck_#t~ret289; [2021-11-06 14:56:55,034 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5348-1: __copy_from_user_nocheck_#t~ret284 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~2 := __copy_from_user_nocheck_#t~ret284;havoc __copy_from_user_nocheck_#t~ret284;__copy_from_user_nocheck_#res := (if __copy_from_user_nocheck_~tmp___2~2 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~2 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~2 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 14:56:55,034 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5348-5: __copy_to_user_nocheck_#t~ret290 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~3 := __copy_to_user_nocheck_#t~ret290;havoc __copy_to_user_nocheck_#t~ret290;__copy_to_user_nocheck_#res := (if __copy_to_user_nocheck_~tmp___2~3 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~3 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~3 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 14:56:55,034 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5348-3: __copy_from_user_nocheck_#t~ret284 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~2 := __copy_from_user_nocheck_#t~ret284;havoc __copy_from_user_nocheck_#t~ret284;__copy_from_user_nocheck_#res := (if __copy_from_user_nocheck_~tmp___2~2 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~2 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~2 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 14:56:55,039 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5348-9: __copy_to_user_nocheck_#t~ret290 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~3 := __copy_to_user_nocheck_#t~ret290;havoc __copy_to_user_nocheck_#t~ret290;__copy_to_user_nocheck_#res := (if __copy_to_user_nocheck_~tmp___2~3 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~3 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~3 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 14:56:55,040 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5348-7: __copy_from_user_nocheck_#t~ret284 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~2 := __copy_from_user_nocheck_#t~ret284;havoc __copy_from_user_nocheck_#t~ret284;__copy_from_user_nocheck_#res := (if __copy_from_user_nocheck_~tmp___2~2 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~2 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~2 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 14:56:55,040 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5348-13: __copy_to_user_nocheck_#t~ret290 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~3 := __copy_to_user_nocheck_#t~ret290;havoc __copy_to_user_nocheck_#t~ret290;__copy_to_user_nocheck_#res := (if __copy_to_user_nocheck_~tmp___2~3 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~3 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~3 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 14:56:55,040 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5348-11: __copy_to_user_nocheck_#t~ret290 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~3 := __copy_to_user_nocheck_#t~ret290;havoc __copy_to_user_nocheck_#t~ret290;__copy_to_user_nocheck_#res := (if __copy_to_user_nocheck_~tmp___2~3 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~3 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~3 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-06 14:56:55,040 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5362: havoc __copy_from_user_nocheck_#t~switch281; [2021-11-06 14:56:55,041 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5362-1: havoc __copy_from_user_nocheck_#t~switch281; [2021-11-06 14:56:55,041 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5362-2: havoc __copy_from_user_nocheck_#t~switch281; [2021-11-06 14:56:55,041 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368-1: assume __copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,041 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368-1: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 4 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,041 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368-2: assume __copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,041 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368-2: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 4 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,041 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368: assume __copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,041 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 4 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,042 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5373-2: assume __copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,055 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5373-2: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 8 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,056 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5373: assume __copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,056 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5373: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 8 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,056 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5373-1: assume __copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,056 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5373-1: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 8 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,056 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5378: assume __copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,056 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5378: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 10 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,056 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5378-1: assume __copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,057 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5378-1: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 10 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,057 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5378-2: assume __copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,057 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5378-2: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 10 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,057 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383: assume __copy_from_user_nocheck_#t~switch281;ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~2 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 14:56:55,057 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 16 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,057 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383-1: assume __copy_from_user_nocheck_#t~switch281;ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~2 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 14:56:55,057 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383-1: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 16 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,058 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383-2: assume __copy_from_user_nocheck_#t~switch281;ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~2 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 14:56:55,058 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5383-2: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := __copy_from_user_nocheck_#t~switch281 || 16 == __copy_from_user_nocheck_~size; [2021-11-06 14:56:55,058 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388-1: assume 0 != __copy_from_user_nocheck_~tmp___0~10;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,058 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388-1: assume !(0 != __copy_from_user_nocheck_~tmp___0~10);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,058 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388-2: assume 0 != __copy_from_user_nocheck_~tmp___0~10;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,058 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388-2: assume !(0 != __copy_from_user_nocheck_~tmp___0~10);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,058 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388: assume 0 != __copy_from_user_nocheck_~tmp___0~10;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,058 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388: assume !(0 != __copy_from_user_nocheck_~tmp___0~10);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,059 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396-1: assume __copy_from_user_nocheck_#t~switch281;ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~2 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 14:56:55,059 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396-1: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := true; [2021-11-06 14:56:55,059 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396-2: assume __copy_from_user_nocheck_#t~switch281;ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~2 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 14:56:55,059 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396-2: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := true; [2021-11-06 14:56:55,059 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396: assume __copy_from_user_nocheck_#t~switch281;ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~2 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 14:56:55,059 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5396: assume !__copy_from_user_nocheck_#t~switch281;__copy_from_user_nocheck_#t~switch281 := true; [2021-11-06 14:56:55,060 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5401-2: assume 0 != __copy_from_user_nocheck_~tmp___1~6;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,060 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5401-2: assume !(0 != __copy_from_user_nocheck_~tmp___1~6);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,060 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5401: assume 0 != __copy_from_user_nocheck_~tmp___1~6;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,060 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5401: assume !(0 != __copy_from_user_nocheck_~tmp___1~6);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,060 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5401-1: assume 0 != __copy_from_user_nocheck_~tmp___1~6;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,060 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5401-1: assume !(0 != __copy_from_user_nocheck_~tmp___1~6);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~2; [2021-11-06 14:56:55,060 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409-2: assume __copy_from_user_nocheck_#t~switch281;copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_from_user_nocheck_~dst.base, __copy_from_user_nocheck_~dst.offset, __copy_from_user_nocheck_~src.base, __copy_from_user_nocheck_~src.offset, __copy_from_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~1;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~1;copy_user_generic_#res := copy_user_generic_~ret~1 % 4294967296; [2021-11-06 14:56:55,061 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409-2: assume !__copy_from_user_nocheck_#t~switch281; [2021-11-06 14:56:55,061 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409: assume __copy_from_user_nocheck_#t~switch281;copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_from_user_nocheck_~dst.base, __copy_from_user_nocheck_~dst.offset, __copy_from_user_nocheck_~src.base, __copy_from_user_nocheck_~src.offset, __copy_from_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~1;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~1;copy_user_generic_#res := copy_user_generic_~ret~1 % 4294967296; [2021-11-06 14:56:55,061 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409: assume !__copy_from_user_nocheck_#t~switch281; [2021-11-06 14:56:55,061 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409-1: assume __copy_from_user_nocheck_#t~switch281;copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_from_user_nocheck_~dst.base, __copy_from_user_nocheck_~dst.offset, __copy_from_user_nocheck_~src.base, __copy_from_user_nocheck_~src.offset, __copy_from_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~1;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~1;copy_user_generic_#res := copy_user_generic_~ret~1 % 4294967296; [2021-11-06 14:56:55,061 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5409-1: assume !__copy_from_user_nocheck_#t~switch281; [2021-11-06 14:56:55,061 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5435: havoc __copy_to_user_nocheck_#t~switch287; [2021-11-06 14:56:55,074 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5435-1: havoc __copy_to_user_nocheck_#t~switch287; [2021-11-06 14:56:55,075 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5435-2: havoc __copy_to_user_nocheck_#t~switch287; [2021-11-06 14:56:55,075 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5435-3: havoc __copy_to_user_nocheck_#t~switch287; [2021-11-06 14:56:55,075 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440-1: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,075 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440-1: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 4 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,075 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440-2: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,075 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440-2: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 4 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,075 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,076 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 4 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,076 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440-3: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,076 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440-3: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 4 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,076 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444-1: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,076 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444-1: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 8 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,076 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444-2: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,076 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444-2: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 8 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,077 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,077 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 8 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,077 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444-3: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,077 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5444-3: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 8 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,077 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448-1: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,077 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448-1: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 10 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,077 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448-2: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,077 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448-2: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 10 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,077 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,078 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 10 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,078 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448-3: assume __copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,078 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5448-3: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 10 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,078 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452-1: assume __copy_to_user_nocheck_#t~switch287;ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~3 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 14:56:55,078 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452-1: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 16 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,078 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452-2: assume __copy_to_user_nocheck_#t~switch287;ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~3 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 14:56:55,078 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452-2: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 16 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,079 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452: assume __copy_to_user_nocheck_#t~switch287;ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~3 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 14:56:55,079 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 16 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,079 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452-3: assume __copy_to_user_nocheck_#t~switch287;ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~3 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 14:56:55,079 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5452-3: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := __copy_to_user_nocheck_#t~switch287 || 16 == __copy_to_user_nocheck_~size; [2021-11-06 14:56:55,079 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5456-1: assume 0 != __copy_to_user_nocheck_~tmp___0~11;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,079 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5456-1: assume !(0 != __copy_to_user_nocheck_~tmp___0~11);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,079 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5456-2: assume 0 != __copy_to_user_nocheck_~tmp___0~11;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,079 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5456-2: assume !(0 != __copy_to_user_nocheck_~tmp___0~11);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,080 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5456: assume 0 != __copy_to_user_nocheck_~tmp___0~11;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,080 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5456: assume !(0 != __copy_to_user_nocheck_~tmp___0~11);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,080 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5456-3: assume 0 != __copy_to_user_nocheck_~tmp___0~11;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,080 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5456-3: assume !(0 != __copy_to_user_nocheck_~tmp___0~11);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,080 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464-1: assume __copy_to_user_nocheck_#t~switch287;ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~3 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 14:56:55,080 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464-1: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := true; [2021-11-06 14:56:55,080 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464-2: assume __copy_to_user_nocheck_#t~switch287;ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~3 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 14:56:55,081 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464-2: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := true; [2021-11-06 14:56:55,081 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464: assume __copy_to_user_nocheck_#t~switch287;ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~3 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 14:56:55,081 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := true; [2021-11-06 14:56:55,081 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464-3: assume __copy_to_user_nocheck_#t~switch287;ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~3 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-06 14:56:55,081 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5464-3: assume !__copy_to_user_nocheck_#t~switch287;__copy_to_user_nocheck_#t~switch287 := true; [2021-11-06 14:56:55,081 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5468-1: assume 0 != __copy_to_user_nocheck_~tmp___1~7;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,081 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5468-1: assume !(0 != __copy_to_user_nocheck_~tmp___1~7);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,081 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5468-2: assume 0 != __copy_to_user_nocheck_~tmp___1~7;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,082 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5468-2: assume !(0 != __copy_to_user_nocheck_~tmp___1~7);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,082 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5468: assume 0 != __copy_to_user_nocheck_~tmp___1~7;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,082 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5468: assume !(0 != __copy_to_user_nocheck_~tmp___1~7);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,082 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5468-3: assume 0 != __copy_to_user_nocheck_~tmp___1~7;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,082 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5468-3: assume !(0 != __copy_to_user_nocheck_~tmp___1~7);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~3; [2021-11-06 14:56:55,082 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476-1: assume __copy_to_user_nocheck_#t~switch287;copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_to_user_nocheck_~dst.base, __copy_to_user_nocheck_~dst.offset, __copy_to_user_nocheck_~src.base, __copy_to_user_nocheck_~src.offset, __copy_to_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~1;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~1;copy_user_generic_#res := copy_user_generic_~ret~1 % 4294967296; [2021-11-06 14:56:55,082 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476-1: assume !__copy_to_user_nocheck_#t~switch287; [2021-11-06 14:56:55,082 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476-2: assume __copy_to_user_nocheck_#t~switch287;copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_to_user_nocheck_~dst.base, __copy_to_user_nocheck_~dst.offset, __copy_to_user_nocheck_~src.base, __copy_to_user_nocheck_~src.offset, __copy_to_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~1;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~1;copy_user_generic_#res := copy_user_generic_~ret~1 % 4294967296; [2021-11-06 14:56:55,083 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476-2: assume !__copy_to_user_nocheck_#t~switch287; [2021-11-06 14:56:55,083 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476: assume __copy_to_user_nocheck_#t~switch287;copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_to_user_nocheck_~dst.base, __copy_to_user_nocheck_~dst.offset, __copy_to_user_nocheck_~src.base, __copy_to_user_nocheck_~src.offset, __copy_to_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~1;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~1;copy_user_generic_#res := copy_user_generic_~ret~1 % 4294967296; [2021-11-06 14:56:55,083 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476: assume !__copy_to_user_nocheck_#t~switch287; [2021-11-06 14:56:55,083 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476-3: assume __copy_to_user_nocheck_#t~switch287;copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_to_user_nocheck_~dst.base, __copy_to_user_nocheck_~dst.offset, __copy_to_user_nocheck_~src.base, __copy_to_user_nocheck_~src.offset, __copy_to_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~1;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~1;copy_user_generic_#res := copy_user_generic_~ret~1 % 4294967296; [2021-11-06 14:56:55,083 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint L5476-3: assume !__copy_to_user_nocheck_#t~switch287; [2021-11-06 14:56:55,143 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 14:56:55,143 INFO L299 CfgBuilder]: Removed 11275 assume(true) statements. [2021-11-06 14:56:55,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:56:55 BoogieIcfgContainer [2021-11-06 14:56:55,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 14:56:55,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 14:56:55,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 14:56:55,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 14:56:55,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 02:48:24" (1/3) ... [2021-11-06 14:56:55,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b4dd19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:56:55, skipping insertion in model container [2021-11-06 14:56:55,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:48:27" (2/3) ... [2021-11-06 14:56:55,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b4dd19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:56:55, skipping insertion in model container [2021-11-06 14:56:55,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:56:55" (3/3) ... [2021-11-06 14:56:55,162 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--block--skd.ko-entry_point.cil.out.i [2021-11-06 14:56:55,166 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 14:56:55,166 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-11-06 14:56:55,223 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 14:56:55,227 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 [2021-11-06 14:56:55,228 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-11-06 14:56:55,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 12432 states, 12419 states have (on average 1.3836862871406717) internal successors, (17184), 12431 states have internal predecessors, (17184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:56:55,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-06 14:56:55,365 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:56:55,366 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:56:55,367 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 14:56:55,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:56:55,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1683440819, now seen corresponding path program 1 times [2021-11-06 14:56:55,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:56:55,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507393813] [2021-11-06 14:56:55,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:56:55,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:56:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:56:56,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:56:56,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:56:56,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507393813] [2021-11-06 14:56:56,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507393813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:56:56,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:56:56,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:56:56,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113008191] [2021-11-06 14:56:56,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:56:56,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:56:56,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:56:56,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:56:57,009 INFO L87 Difference]: Start difference. First operand has 12432 states, 12419 states have (on average 1.3836862871406717) internal successors, (17184), 12431 states have internal predecessors, (17184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:56:57,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:56:57,824 INFO L93 Difference]: Finished difference Result 31986 states and 44367 transitions. [2021-11-06 14:56:57,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:56:57,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-06 14:56:57,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:56:57,901 INFO L225 Difference]: With dead ends: 31986 [2021-11-06 14:56:57,901 INFO L226 Difference]: Without dead ends: 19331 [2021-11-06 14:56:57,931 INFO L786 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 [2021-11-06 14:56:57,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19331 states. [2021-11-06 14:56:58,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19331 to 19327. [2021-11-06 14:56:58,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19327 states, 19315 states have (on average 1.3829666062645611) internal successors, (26712), 19326 states have internal predecessors, (26712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:56:58,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19327 states to 19327 states and 26712 transitions. [2021-11-06 14:56:58,402 INFO L78 Accepts]: Start accepts. Automaton has 19327 states and 26712 transitions. Word has length 37 [2021-11-06 14:56:58,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:56:58,404 INFO L470 AbstractCegarLoop]: Abstraction has 19327 states and 26712 transitions. [2021-11-06 14:56:58,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:56:58,405 INFO L276 IsEmpty]: Start isEmpty. Operand 19327 states and 26712 transitions. [2021-11-06 14:56:58,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-06 14:56:58,413 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:56:58,413 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:56:58,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 14:56:58,413 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 14:56:58,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:56:58,415 INFO L85 PathProgramCache]: Analyzing trace with hash 990791132, now seen corresponding path program 1 times [2021-11-06 14:56:58,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:56:58,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348846065] [2021-11-06 14:56:58,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:56:58,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:56:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:56:59,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:56:59,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:56:59,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348846065] [2021-11-06 14:56:59,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348846065] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:56:59,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:56:59,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:56:59,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764244356] [2021-11-06 14:56:59,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:56:59,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:56:59,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:56:59,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:56:59,370 INFO L87 Difference]: Start difference. First operand 19327 states and 26712 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:00,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:57:00,591 INFO L93 Difference]: Finished difference Result 56980 states and 78752 transitions. [2021-11-06 14:57:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:57:00,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-06 14:57:00,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:57:00,697 INFO L225 Difference]: With dead ends: 56980 [2021-11-06 14:57:00,698 INFO L226 Difference]: Without dead ends: 37671 [2021-11-06 14:57:00,731 INFO L786 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 [2021-11-06 14:57:00,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37671 states. [2021-11-06 14:57:01,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37671 to 37645. [2021-11-06 14:57:01,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37645 states, 37633 states have (on average 1.3829086174368241) internal successors, (52043), 37644 states have internal predecessors, (52043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:01,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37645 states to 37645 states and 52043 transitions. [2021-11-06 14:57:01,612 INFO L78 Accepts]: Start accepts. Automaton has 37645 states and 52043 transitions. Word has length 64 [2021-11-06 14:57:01,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:57:01,613 INFO L470 AbstractCegarLoop]: Abstraction has 37645 states and 52043 transitions. [2021-11-06 14:57:01,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:01,613 INFO L276 IsEmpty]: Start isEmpty. Operand 37645 states and 52043 transitions. [2021-11-06 14:57:01,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-06 14:57:01,624 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:57:01,625 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:57:01,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 14:57:01,625 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 14:57:01,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:57:01,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1499220983, now seen corresponding path program 1 times [2021-11-06 14:57:01,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:57:01,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917506293] [2021-11-06 14:57:01,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:57:01,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:57:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:57:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:57:02,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:57:02,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917506293] [2021-11-06 14:57:02,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917506293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:57:02,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:57:02,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 14:57:02,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909359943] [2021-11-06 14:57:02,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:57:02,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:57:02,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:57:02,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:57:02,816 INFO L87 Difference]: Start difference. First operand 37645 states and 52043 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:03,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:57:03,346 INFO L93 Difference]: Finished difference Result 75272 states and 104064 transitions. [2021-11-06 14:57:03,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:57:03,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-06 14:57:03,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:57:03,433 INFO L225 Difference]: With dead ends: 75272 [2021-11-06 14:57:03,434 INFO L226 Difference]: Without dead ends: 37645 [2021-11-06 14:57:03,492 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:57:03,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37645 states. [2021-11-06 14:57:04,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37645 to 37645. [2021-11-06 14:57:04,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37645 states, 37633 states have (on average 1.382802327744267) internal successors, (52039), 37644 states have internal predecessors, (52039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:04,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37645 states to 37645 states and 52039 transitions. [2021-11-06 14:57:04,405 INFO L78 Accepts]: Start accepts. Automaton has 37645 states and 52039 transitions. Word has length 66 [2021-11-06 14:57:04,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:57:04,406 INFO L470 AbstractCegarLoop]: Abstraction has 37645 states and 52039 transitions. [2021-11-06 14:57:04,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:04,406 INFO L276 IsEmpty]: Start isEmpty. Operand 37645 states and 52039 transitions. [2021-11-06 14:57:04,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-06 14:57:04,416 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:57:04,416 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:57:04,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 14:57:04,417 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 14:57:04,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:57:04,418 INFO L85 PathProgramCache]: Analyzing trace with hash 127413685, now seen corresponding path program 1 times [2021-11-06 14:57:04,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:57:04,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459493693] [2021-11-06 14:57:04,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:57:04,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:57:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:57:05,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:57:05,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:57:05,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459493693] [2021-11-06 14:57:05,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459493693] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:57:05,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:57:05,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 14:57:05,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466864036] [2021-11-06 14:57:05,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:57:05,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:57:05,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:57:05,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:57:05,497 INFO L87 Difference]: Start difference. First operand 37645 states and 52039 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:06,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:57:06,392 INFO L93 Difference]: Finished difference Result 75272 states and 104056 transitions. [2021-11-06 14:57:06,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:57:06,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-06 14:57:06,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:57:06,492 INFO L225 Difference]: With dead ends: 75272 [2021-11-06 14:57:06,492 INFO L226 Difference]: Without dead ends: 37645 [2021-11-06 14:57:06,548 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:57:06,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37645 states. [2021-11-06 14:57:07,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37645 to 37645. [2021-11-06 14:57:07,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37645 states, 37633 states have (on average 1.38269603805171) internal successors, (52035), 37644 states have internal predecessors, (52035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:07,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37645 states to 37645 states and 52035 transitions. [2021-11-06 14:57:07,542 INFO L78 Accepts]: Start accepts. Automaton has 37645 states and 52035 transitions. Word has length 66 [2021-11-06 14:57:07,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:57:07,542 INFO L470 AbstractCegarLoop]: Abstraction has 37645 states and 52035 transitions. [2021-11-06 14:57:07,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:07,543 INFO L276 IsEmpty]: Start isEmpty. Operand 37645 states and 52035 transitions. [2021-11-06 14:57:07,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-06 14:57:07,552 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:57:07,552 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:57:07,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 14:57:07,553 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 14:57:07,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:57:07,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1717953481, now seen corresponding path program 1 times [2021-11-06 14:57:07,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:57:07,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001832433] [2021-11-06 14:57:07,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:57:07,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:57:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:57:08,474 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:57:08,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:57:08,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001832433] [2021-11-06 14:57:08,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001832433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:57:08,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:57:08,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 14:57:08,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835466184] [2021-11-06 14:57:08,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:57:08,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:57:08,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:57:08,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:57:08,476 INFO L87 Difference]: Start difference. First operand 37645 states and 52035 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:10,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:57:10,203 INFO L93 Difference]: Finished difference Result 75272 states and 104048 transitions. [2021-11-06 14:57:10,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:57:10,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-06 14:57:10,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:57:10,322 INFO L225 Difference]: With dead ends: 75272 [2021-11-06 14:57:10,323 INFO L226 Difference]: Without dead ends: 37645 [2021-11-06 14:57:10,367 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:57:10,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37645 states. [2021-11-06 14:57:11,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37645 to 37645. [2021-11-06 14:57:11,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37645 states, 37633 states have (on average 1.382589748359153) internal successors, (52031), 37644 states have internal predecessors, (52031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:11,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37645 states to 37645 states and 52031 transitions. [2021-11-06 14:57:11,117 INFO L78 Accepts]: Start accepts. Automaton has 37645 states and 52031 transitions. Word has length 66 [2021-11-06 14:57:11,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:57:11,118 INFO L470 AbstractCegarLoop]: Abstraction has 37645 states and 52031 transitions. [2021-11-06 14:57:11,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:11,119 INFO L276 IsEmpty]: Start isEmpty. Operand 37645 states and 52031 transitions. [2021-11-06 14:57:11,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-06 14:57:11,131 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:57:11,131 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:57:11,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 14:57:11,132 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 14:57:11,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:57:11,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1547654517, now seen corresponding path program 1 times [2021-11-06 14:57:11,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:57:11,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131254385] [2021-11-06 14:57:11,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:57:11,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:57:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:57:12,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:57:12,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:57:12,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131254385] [2021-11-06 14:57:12,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131254385] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:57:12,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:57:12,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 14:57:12,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712331190] [2021-11-06 14:57:12,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:57:12,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:57:12,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:57:12,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:57:12,070 INFO L87 Difference]: Start difference. First operand 37645 states and 52031 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:12,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:57:12,971 INFO L93 Difference]: Finished difference Result 75272 states and 104040 transitions. [2021-11-06 14:57:12,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:57:12,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-06 14:57:12,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:57:13,043 INFO L225 Difference]: With dead ends: 75272 [2021-11-06 14:57:13,044 INFO L226 Difference]: Without dead ends: 37645 [2021-11-06 14:57:13,200 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:57:13,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37645 states. [2021-11-06 14:57:13,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37645 to 37645. [2021-11-06 14:57:13,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37645 states, 37633 states have (on average 1.3824834586665957) internal successors, (52027), 37644 states have internal predecessors, (52027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:14,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37645 states to 37645 states and 52027 transitions. [2021-11-06 14:57:14,062 INFO L78 Accepts]: Start accepts. Automaton has 37645 states and 52027 transitions. Word has length 66 [2021-11-06 14:57:14,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:57:14,062 INFO L470 AbstractCegarLoop]: Abstraction has 37645 states and 52027 transitions. [2021-11-06 14:57:14,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:57:14,063 INFO L276 IsEmpty]: Start isEmpty. Operand 37645 states and 52027 transitions. [2021-11-06 14:57:14,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-06 14:57:14,075 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:57:14,075 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:57:14,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 14:57:14,076 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2021-11-06 14:57:14,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:57:14,076 INFO L85 PathProgramCache]: Analyzing trace with hash -2087781257, now seen corresponding path program 1 times [2021-11-06 14:57:14,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:57:14,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360432413] [2021-11-06 14:57:14,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:57:14,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:57:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:57:15,260 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:57:15,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:57:15,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360432413] [2021-11-06 14:57:15,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360432413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:57:15,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:57:15,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 14:57:15,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642822047] [2021-11-06 14:57:15,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 14:57:15,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:57:15,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 14:57:15,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-06 14:57:15,262 INFO L87 Difference]: Start difference. First operand 37645 states and 52027 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)