./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.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 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:04:40,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:04:40,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:04:40,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:04:40,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:04:40,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:04:40,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:04:40,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:04:40,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:04:40,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:04:40,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:04:40,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:04:40,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:04:40,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:04:40,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:04:40,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:04:40,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:04:40,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:04:40,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:04:40,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:04:40,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:04:40,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:04:40,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:04:40,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:04:40,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:04:40,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:04:40,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:04:40,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:04:40,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:04:40,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:04:40,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:04:40,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:04:40,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:04:40,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:04:40,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:04:40,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:04:40,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:04:40,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:04:40,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:04:40,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:04:40,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:04:40,745 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:04:40,762 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:04:40,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:04:40,762 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:04:40,762 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:04:40,763 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:04:40,763 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:04:40,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:04:40,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:04:40,764 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:04:40,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:04:40,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:04:40,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:04:40,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:04:40,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:04:40,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:04:40,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:04:40,765 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:04:40,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:04:40,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:04:40,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:04:40,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:04:40,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:04:40,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:04:40,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:04:40,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:04:40,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:04:40,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:04:40,767 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:04:40,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:04:40,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:04:40,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:04:40,768 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 [2021-12-21 16:04:40,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:04:40,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:04:40,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:04:40,967 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:04:40,967 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:04:40,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-12-21 16:04:41,022 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6697f8f22/12e4e89645e644d49d259ff2b09573de/FLAGf285f3cde [2021-12-21 16:04:41,542 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:04:41,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-12-21 16:04:41,570 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6697f8f22/12e4e89645e644d49d259ff2b09573de/FLAGf285f3cde [2021-12-21 16:04:41,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6697f8f22/12e4e89645e644d49d259ff2b09573de [2021-12-21 16:04:41,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:04:41,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:04:41,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:04:41,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:04:41,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:04:41,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:04:41" (1/1) ... [2021-12-21 16:04:41,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36490cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:41, skipping insertion in model container [2021-12-21 16:04:41,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:04:41" (1/1) ... [2021-12-21 16:04:41,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:04:41,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:04:42,748 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-12-21 16:04:42,828 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-21 16:04:42,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:04:42,857 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:04:43,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-12-21 16:04:43,103 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-21 16:04:43,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:04:43,192 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:04:43,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:43 WrapperNode [2021-12-21 16:04:43,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:04:43,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:04:43,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:04:43,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:04:43,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:43" (1/1) ... [2021-12-21 16:04:43,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:43" (1/1) ... [2021-12-21 16:04:43,345 INFO L137 Inliner]: procedures = 259, calls = 1650, calls flagged for inlining = 99, calls inlined = 32, statements flattened = 1369 [2021-12-21 16:04:43,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:04:43,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:04:43,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:04:43,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:04:43,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:43" (1/1) ... [2021-12-21 16:04:43,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:43" (1/1) ... [2021-12-21 16:04:43,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:43" (1/1) ... [2021-12-21 16:04:43,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:43" (1/1) ... [2021-12-21 16:04:43,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:43" (1/1) ... [2021-12-21 16:04:43,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:43" (1/1) ... [2021-12-21 16:04:43,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:43" (1/1) ... [2021-12-21 16:04:43,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:04:43,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:04:43,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:04:43,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:04:43,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:43" (1/1) ... [2021-12-21 16:04:43,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:04:43,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:04:43,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 16:04:43,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 16:04:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure ir_lookup_by_scancode [2021-12-21 16:04:43,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_lookup_by_scancode [2021-12-21 16:04:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:04:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:04:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ir_raw_handler_lock [2021-12-21 16:04:43,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ir_raw_handler_lock [2021-12-21 16:04:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:04:43,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:04:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure rc_dev_uevent [2021-12-21 16:04:43,506 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_dev_uevent [2021-12-21 16:04:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:04:43,506 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:04:43,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:04:43,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:04:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-21 16:04:43,507 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-21 16:04:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 16:04:43,507 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 16:04:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:04:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:04:43,507 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:04:43,507 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:04:43,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:04:43,508 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2021-12-21 16:04:43,508 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2021-12-21 16:04:43,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:04:43,508 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-21 16:04:43,508 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-21 16:04:43,508 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-21 16:04:43,508 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-21 16:04:43,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_rc_dev [2021-12-21 16:04:43,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_rc_dev [2021-12-21 16:04:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-21 16:04:43,509 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-21 16:04:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_rc_dev [2021-12-21 16:04:43,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_rc_dev [2021-12-21 16:04:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:04:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure rc_dev_release [2021-12-21 16:04:43,510 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_dev_release [2021-12-21 16:04:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:04:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:04:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:04:43,510 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:04:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-21 16:04:43,510 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-21 16:04:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ir_raw_handler_lock [2021-12-21 16:04:43,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ir_raw_handler_lock [2021-12-21 16:04:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:04:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:04:43,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:04:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:04:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:04:43,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:04:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure input_scancode_to_scalar [2021-12-21 16:04:43,512 INFO L138 BoogieDeclarations]: Found implementation of procedure input_scancode_to_scalar [2021-12-21 16:04:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-21 16:04:43,513 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-21 16:04:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-21 16:04:43,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-21 16:04:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-21 16:04:43,514 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-21 16:04:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:04:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:04:43,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:04:43,793 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:04:43,795 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:04:44,814 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:04:44,823 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:04:44,823 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 16:04:44,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:04:44 BoogieIcfgContainer [2021-12-21 16:04:44,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:04:44,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:04:44,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:04:44,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:04:44,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:04:41" (1/3) ... [2021-12-21 16:04:44,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8976465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:04:44, skipping insertion in model container [2021-12-21 16:04:44,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:43" (2/3) ... [2021-12-21 16:04:44,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8976465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:04:44, skipping insertion in model container [2021-12-21 16:04:44,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:04:44" (3/3) ... [2021-12-21 16:04:44,846 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-12-21 16:04:44,850 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:04:44,850 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:04:44,890 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:04:44,903 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 16:04:44,903 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:04:44,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 317 states, 239 states have (on average 1.4142259414225942) internal successors, (338), 250 states have internal predecessors, (338), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2021-12-21 16:04:44,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-21 16:04:44,938 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:44,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:04:44,939 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:44,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:44,942 INFO L85 PathProgramCache]: Analyzing trace with hash 273593741, now seen corresponding path program 1 times [2021-12-21 16:04:44,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:44,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907911428] [2021-12-21 16:04:44,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:44,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:45,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:45,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:45,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907911428] [2021-12-21 16:04:45,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907911428] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:45,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:45,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:04:45,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316159130] [2021-12-21 16:04:45,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:45,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:04:45,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:45,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:04:45,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:45,317 INFO L87 Difference]: Start difference. First operand has 317 states, 239 states have (on average 1.4142259414225942) internal successors, (338), 250 states have internal predecessors, (338), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:45,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:45,433 INFO L93 Difference]: Finished difference Result 736 states and 1044 transitions. [2021-12-21 16:04:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:04:45,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-21 16:04:45,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:45,449 INFO L225 Difference]: With dead ends: 736 [2021-12-21 16:04:45,450 INFO L226 Difference]: Without dead ends: 414 [2021-12-21 16:04:45,458 INFO L932 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 [2021-12-21 16:04:45,461 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 142 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:45,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 857 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:04:45,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-12-21 16:04:45,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 399. [2021-12-21 16:04:45,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 306 states have (on average 1.4248366013071896) internal successors, (436), 316 states have internal predecessors, (436), 62 states have call successors, (62), 31 states have call predecessors, (62), 30 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2021-12-21 16:04:45,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 551 transitions. [2021-12-21 16:04:45,536 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 551 transitions. Word has length 17 [2021-12-21 16:04:45,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:45,539 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 551 transitions. [2021-12-21 16:04:45,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:45,540 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 551 transitions. [2021-12-21 16:04:45,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-21 16:04:45,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:45,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:04:45,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:04:45,543 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:45,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:45,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1660204033, now seen corresponding path program 1 times [2021-12-21 16:04:45,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:45,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102994202] [2021-12-21 16:04:45,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:45,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:45,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:45,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:45,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102994202] [2021-12-21 16:04:45,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102994202] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:45,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:45,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:04:45,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201028126] [2021-12-21 16:04:45,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:45,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:04:45,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:45,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:04:45,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:45,663 INFO L87 Difference]: Start difference. First operand 399 states and 551 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:45,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:45,703 INFO L93 Difference]: Finished difference Result 401 states and 552 transitions. [2021-12-21 16:04:45,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:04:45,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-21 16:04:45,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:45,716 INFO L225 Difference]: With dead ends: 401 [2021-12-21 16:04:45,716 INFO L226 Difference]: Without dead ends: 398 [2021-12-21 16:04:45,717 INFO L932 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 [2021-12-21 16:04:45,718 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 408 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:45,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 423 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:04:45,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-12-21 16:04:45,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2021-12-21 16:04:45,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 306 states have (on average 1.4215686274509804) internal successors, (435), 315 states have internal predecessors, (435), 61 states have call successors, (61), 31 states have call predecessors, (61), 30 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2021-12-21 16:04:45,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 549 transitions. [2021-12-21 16:04:45,747 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 549 transitions. Word has length 19 [2021-12-21 16:04:45,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:45,748 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 549 transitions. [2021-12-21 16:04:45,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:45,748 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 549 transitions. [2021-12-21 16:04:45,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-21 16:04:45,752 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:45,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:04:45,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:04:45,753 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:45,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:45,754 INFO L85 PathProgramCache]: Analyzing trace with hash 73096171, now seen corresponding path program 1 times [2021-12-21 16:04:45,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:45,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224057278] [2021-12-21 16:04:45,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:45,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:45,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:45,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:45,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224057278] [2021-12-21 16:04:45,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224057278] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:45,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:45,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:04:45,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397400151] [2021-12-21 16:04:45,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:45,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:04:45,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:45,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:04:45,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:45,859 INFO L87 Difference]: Start difference. First operand 398 states and 549 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:45,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:45,894 INFO L93 Difference]: Finished difference Result 405 states and 553 transitions. [2021-12-21 16:04:45,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:04:45,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-21 16:04:45,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:45,897 INFO L225 Difference]: With dead ends: 405 [2021-12-21 16:04:45,897 INFO L226 Difference]: Without dead ends: 401 [2021-12-21 16:04:45,897 INFO L932 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 [2021-12-21 16:04:45,898 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 391 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:45,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 429 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:04:45,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-12-21 16:04:45,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 399. [2021-12-21 16:04:45,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 308 states have (on average 1.4123376623376624) internal successors, (435), 315 states have internal predecessors, (435), 59 states have call successors, (59), 32 states have call predecessors, (59), 31 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2021-12-21 16:04:45,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 547 transitions. [2021-12-21 16:04:45,909 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 547 transitions. Word has length 20 [2021-12-21 16:04:45,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:45,909 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 547 transitions. [2021-12-21 16:04:45,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:45,910 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 547 transitions. [2021-12-21 16:04:45,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-21 16:04:45,910 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:45,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:04:45,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:04:45,911 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:45,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:45,911 INFO L85 PathProgramCache]: Analyzing trace with hash -2029167486, now seen corresponding path program 1 times [2021-12-21 16:04:45,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:45,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214299039] [2021-12-21 16:04:45,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:45,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:45,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:45,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:45,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214299039] [2021-12-21 16:04:45,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214299039] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:45,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:45,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:04:45,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324678688] [2021-12-21 16:04:45,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:45,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:04:45,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:45,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:04:45,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:45,984 INFO L87 Difference]: Start difference. First operand 399 states and 547 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:46,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:46,012 INFO L93 Difference]: Finished difference Result 401 states and 548 transitions. [2021-12-21 16:04:46,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:04:46,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-21 16:04:46,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:46,015 INFO L225 Difference]: With dead ends: 401 [2021-12-21 16:04:46,015 INFO L226 Difference]: Without dead ends: 398 [2021-12-21 16:04:46,015 INFO L932 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 [2021-12-21 16:04:46,016 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 400 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:46,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 417 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:04:46,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-12-21 16:04:46,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2021-12-21 16:04:46,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 308 states have (on average 1.4090909090909092) internal successors, (434), 314 states have internal predecessors, (434), 58 states have call successors, (58), 32 states have call predecessors, (58), 31 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2021-12-21 16:04:46,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 545 transitions. [2021-12-21 16:04:46,027 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 545 transitions. Word has length 21 [2021-12-21 16:04:46,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:46,027 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 545 transitions. [2021-12-21 16:04:46,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:46,027 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 545 transitions. [2021-12-21 16:04:46,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-21 16:04:46,028 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:46,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:04:46,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 16:04:46,028 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:46,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:46,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1520140750, now seen corresponding path program 1 times [2021-12-21 16:04:46,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:46,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722657762] [2021-12-21 16:04:46,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:46,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:46,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:46,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:46,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722657762] [2021-12-21 16:04:46,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722657762] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:46,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:46,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:04:46,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941935080] [2021-12-21 16:04:46,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:46,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:04:46,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:46,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:04:46,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:46,105 INFO L87 Difference]: Start difference. First operand 398 states and 545 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:46,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:46,147 INFO L93 Difference]: Finished difference Result 604 states and 834 transitions. [2021-12-21 16:04:46,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:04:46,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-21 16:04:46,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:46,150 INFO L225 Difference]: With dead ends: 604 [2021-12-21 16:04:46,150 INFO L226 Difference]: Without dead ends: 600 [2021-12-21 16:04:46,150 INFO L932 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 [2021-12-21 16:04:46,151 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 152 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:46,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 826 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:04:46,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-12-21 16:04:46,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 598. [2021-12-21 16:04:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 471 states have (on average 1.4288747346072186) internal successors, (673), 479 states have internal predecessors, (673), 80 states have call successors, (80), 48 states have call predecessors, (80), 46 states have return successors, (75), 71 states have call predecessors, (75), 75 states have call successors, (75) [2021-12-21 16:04:46,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 828 transitions. [2021-12-21 16:04:46,169 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 828 transitions. Word has length 22 [2021-12-21 16:04:46,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:46,170 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 828 transitions. [2021-12-21 16:04:46,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:46,170 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 828 transitions. [2021-12-21 16:04:46,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-21 16:04:46,171 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:46,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:04:46,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 16:04:46,171 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:46,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:46,172 INFO L85 PathProgramCache]: Analyzing trace with hash -120448763, now seen corresponding path program 1 times [2021-12-21 16:04:46,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:46,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776402399] [2021-12-21 16:04:46,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:46,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:46,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:46,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776402399] [2021-12-21 16:04:46,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776402399] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:46,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:46,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:04:46,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853724985] [2021-12-21 16:04:46,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:46,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:04:46,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:46,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:04:46,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:04:46,258 INFO L87 Difference]: Start difference. First operand 598 states and 828 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:46,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:46,285 INFO L93 Difference]: Finished difference Result 600 states and 829 transitions. [2021-12-21 16:04:46,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:04:46,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-21 16:04:46,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:46,290 INFO L225 Difference]: With dead ends: 600 [2021-12-21 16:04:46,290 INFO L226 Difference]: Without dead ends: 575 [2021-12-21 16:04:46,290 INFO L932 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 [2021-12-21 16:04:46,291 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 396 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:46,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 16:04:46,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2021-12-21 16:04:46,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2021-12-21 16:04:46,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 457 states have (on average 1.4310722100656454) internal successors, (654), 463 states have internal predecessors, (654), 73 states have call successors, (73), 46 states have call predecessors, (73), 44 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2021-12-21 16:04:46,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 796 transitions. [2021-12-21 16:04:46,305 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 796 transitions. Word has length 23 [2021-12-21 16:04:46,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:46,305 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 796 transitions. [2021-12-21 16:04:46,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:04:46,306 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 796 transitions. [2021-12-21 16:04:46,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-21 16:04:46,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:46,307 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-21 16:04:46,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 16:04:46,307 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:46,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:46,308 INFO L85 PathProgramCache]: Analyzing trace with hash 590221083, now seen corresponding path program 1 times [2021-12-21 16:04:46,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:46,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938017311] [2021-12-21 16:04:46,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:46,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:46,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-21 16:04:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:46,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-21 16:04:46,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 16:04:46,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:46,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938017311] [2021-12-21 16:04:46,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938017311] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:46,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:46,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 16:04:46,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404242217] [2021-12-21 16:04:46,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:46,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 16:04:46,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:46,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 16:04:46,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 16:04:46,414 INFO L87 Difference]: Start difference. First operand 575 states and 796 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 16:04:46,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:46,630 INFO L93 Difference]: Finished difference Result 1146 states and 1588 transitions. [2021-12-21 16:04:46,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:04:46,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2021-12-21 16:04:46,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:46,633 INFO L225 Difference]: With dead ends: 1146 [2021-12-21 16:04:46,633 INFO L226 Difference]: Without dead ends: 574 [2021-12-21 16:04:46,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:04:46,635 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 457 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:46,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [483 Valid, 902 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 16:04:46,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-12-21 16:04:46,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2021-12-21 16:04:46,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 457 states have (on average 1.4266958424507659) internal successors, (652), 462 states have internal predecessors, (652), 72 states have call successors, (72), 46 states have call predecessors, (72), 44 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2021-12-21 16:04:46,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 791 transitions. [2021-12-21 16:04:46,651 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 791 transitions. Word has length 45 [2021-12-21 16:04:46,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:46,651 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 791 transitions. [2021-12-21 16:04:46,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-21 16:04:46,651 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 791 transitions. [2021-12-21 16:04:46,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-21 16:04:46,653 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:46,653 INFO L514 BasicCegarLoop]: trace histogram [2, 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] [2021-12-21 16:04:46,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 16:04:46,653 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:46,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:46,654 INFO L85 PathProgramCache]: Analyzing trace with hash 741731796, now seen corresponding path program 1 times [2021-12-21 16:04:46,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:46,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775664848] [2021-12-21 16:04:46,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:46,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:46,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 16:04:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:46,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-21 16:04:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:46,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 16:04:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:46,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:04:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:46,780 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-21 16:04:46,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:46,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775664848] [2021-12-21 16:04:46,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775664848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:46,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:46,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:04:46,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313900087] [2021-12-21 16:04:46,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:46,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:04:46,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:46,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:04:46,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:04:46,782 INFO L87 Difference]: Start difference. First operand 574 states and 791 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 16:04:47,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:47,144 INFO L93 Difference]: Finished difference Result 576 states and 792 transitions. [2021-12-21 16:04:47,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 16:04:47,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2021-12-21 16:04:47,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:47,147 INFO L225 Difference]: With dead ends: 576 [2021-12-21 16:04:47,147 INFO L226 Difference]: Without dead ends: 573 [2021-12-21 16:04:47,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:04:47,148 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 238 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:47,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 1031 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 16:04:47,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-12-21 16:04:47,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2021-12-21 16:04:47,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 457 states have (on average 1.424507658643326) internal successors, (651), 461 states have internal predecessors, (651), 71 states have call successors, (71), 46 states have call predecessors, (71), 44 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2021-12-21 16:04:47,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 789 transitions. [2021-12-21 16:04:47,166 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 789 transitions. Word has length 54 [2021-12-21 16:04:47,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:47,168 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 789 transitions. [2021-12-21 16:04:47,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-21 16:04:47,168 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 789 transitions. [2021-12-21 16:04:47,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-21 16:04:47,169 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:47,169 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 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] [2021-12-21 16:04:47,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 16:04:47,170 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:47,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:47,170 INFO L85 PathProgramCache]: Analyzing trace with hash 360678227, now seen corresponding path program 1 times [2021-12-21 16:04:47,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:47,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658185277] [2021-12-21 16:04:47,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:47,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:47,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-21 16:04:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:47,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-21 16:04:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:47,357 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-21 16:04:47,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:04:47,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658185277] [2021-12-21 16:04:47,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658185277] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:04:47,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:04:47,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:04:47,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472010490] [2021-12-21 16:04:47,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:04:47,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:04:47,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:04:47,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:04:47,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:04:47,360 INFO L87 Difference]: Start difference. First operand 573 states and 789 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 16:04:47,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:04:47,738 INFO L93 Difference]: Finished difference Result 1171 states and 1609 transitions. [2021-12-21 16:04:47,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:04:47,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 53 [2021-12-21 16:04:47,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:04:47,741 INFO L225 Difference]: With dead ends: 1171 [2021-12-21 16:04:47,741 INFO L226 Difference]: Without dead ends: 593 [2021-12-21 16:04:47,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:04:47,743 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 140 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-21 16:04:47,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 1164 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-21 16:04:47,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-12-21 16:04:47,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 525. [2021-12-21 16:04:47,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 425 states have (on average 1.44) internal successors, (612), 428 states have internal predecessors, (612), 62 states have call successors, (62), 39 states have call predecessors, (62), 37 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2021-12-21 16:04:47,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 732 transitions. [2021-12-21 16:04:47,760 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 732 transitions. Word has length 53 [2021-12-21 16:04:47,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:04:47,760 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 732 transitions. [2021-12-21 16:04:47,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-21 16:04:47,760 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 732 transitions. [2021-12-21 16:04:47,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-21 16:04:47,761 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:47,762 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 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] [2021-12-21 16:04:47,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-21 16:04:47,762 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:47,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:47,762 INFO L85 PathProgramCache]: Analyzing trace with hash 763976356, now seen corresponding path program 1 times [2021-12-21 16:04:47,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:04:47,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579327339] [2021-12-21 16:04:47,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:47,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:04:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 16:04:47,914 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 16:04:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 16:04:48,086 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 16:04:48,087 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 16:04:48,087 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 16:04:48,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-21 16:04:48,091 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:04:48,093 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 16:04:48,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 04:04:48 BoogieIcfgContainer [2021-12-21 16:04:48,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 16:04:48,206 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 16:04:48,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 16:04:48,207 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 16:04:48,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:04:44" (3/4) ... [2021-12-21 16:04:48,209 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 16:04:48,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 16:04:48,209 INFO L158 Benchmark]: Toolchain (without parser) took 6435.89ms. Allocated memory was 102.8MB in the beginning and 272.6MB in the end (delta: 169.9MB). Free memory was 66.7MB in the beginning and 119.3MB in the end (delta: -52.6MB). Peak memory consumption was 115.9MB. Max. memory is 16.1GB. [2021-12-21 16:04:48,210 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 60.3MB in the end (delta: 46.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 16:04:48,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1416.30ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 66.5MB in the beginning and 88.8MB in the end (delta: -22.3MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2021-12-21 16:04:48,210 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.97ms. Allocated memory is still 136.3MB. Free memory was 88.8MB in the beginning and 79.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 16:04:48,210 INFO L158 Benchmark]: Boogie Preprocessor took 104.25ms. Allocated memory is still 136.3MB. Free memory was 79.0MB in the beginning and 70.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 16:04:48,211 INFO L158 Benchmark]: RCFGBuilder took 1387.46ms. Allocated memory was 136.3MB in the beginning and 211.8MB in the end (delta: 75.5MB). Free memory was 70.6MB in the beginning and 104.1MB in the end (delta: -33.5MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2021-12-21 16:04:48,211 INFO L158 Benchmark]: TraceAbstraction took 3365.10ms. Allocated memory was 211.8MB in the beginning and 272.6MB in the end (delta: 60.8MB). Free memory was 103.1MB in the beginning and 119.3MB in the end (delta: -16.2MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2021-12-21 16:04:48,211 INFO L158 Benchmark]: Witness Printer took 2.67ms. Allocated memory is still 272.6MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 16:04:48,213 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory was 60.3MB in the beginning and 60.3MB in the end (delta: 46.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1416.30ms. Allocated memory was 102.8MB in the beginning and 136.3MB in the end (delta: 33.6MB). Free memory was 66.5MB in the beginning and 88.8MB in the end (delta: -22.3MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 151.97ms. Allocated memory is still 136.3MB. Free memory was 88.8MB in the beginning and 79.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.25ms. Allocated memory is still 136.3MB. Free memory was 79.0MB in the beginning and 70.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1387.46ms. Allocated memory was 136.3MB in the beginning and 211.8MB in the end (delta: 75.5MB). Free memory was 70.6MB in the beginning and 104.1MB in the end (delta: -33.5MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3365.10ms. Allocated memory was 211.8MB in the beginning and 272.6MB in the end (delta: 60.8MB). Free memory was 103.1MB in the beginning and 119.3MB in the end (delta: -16.2MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. * Witness Printer took 2.67ms. Allocated memory is still 272.6MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 3473. Possible FailurePath: [L3298] int ldv_state_variable_3 ; [L3299] int ldv_state_variable_1 ; [L3300] int ldv_state_variable_2 ; [L3301] int ref_cnt ; [L3302] int ldv_state_variable_0 ; [L3412] int rc_core_debug ; [L3472] static struct list_head rc_map_list = {& rc_map_list, & rc_map_list}; [L3473-L3474] static spinlock_t rc_map_lock = {{{{{0U}}, 3735899821U, 4294967295U, 0xffffffffffffffffUL, {0, {0, 0}, "rc_map_lock", 0, 0UL}}}}; [L3551] static struct rc_map_table empty[1U] = { {42U, 152U}}; [L3552-L3559] static struct rc_map_list empty_map = {{0, 0}, {(struct rc_map_table *)(& empty), 1U, 0U, 0U, 0, "rc-empty", {{{{{0U}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}}}; [L4237-L4238] static struct class ir_input_class = {"rc", 0, 0, 0, 0, 0, 0, & ir_devnode, 0, 0, 0, 0, 0, 0, 0, 0}; [L4239-L4251] static struct __anonstruct_proto_names_168 proto_names[12U] = { {0ULL, (char *)"none"}, {2ULL, (char *)"other"}, {1ULL, (char *)"unknown"}, {24ULL, (char *)"rc-5"}, {1024ULL, (char *)"nec"}, {253952ULL, (char *)"rc-6"}, {64ULL, (char *)"jvc"}, {896ULL, (char *)"sony"}, {32ULL, (char *)"rc-5-sz"}, {2048ULL, (char *)"sanyo"}, {4096ULL, (char *)"mce_kbd"}, {4ULL, (char *)"lirc"}}; [L4578-L4580] static struct device_attribute dev_attr_protocols = {{"protocols", 420U, (_Bool)0, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_protocols, & store_protocols}; [L4581] static struct attribute *rc_dev_attrs[2U] = { & dev_attr_protocols.attr, 0}; [L4582] static struct attribute_group rc_dev_attr_grp = {0, 0, (struct attribute **)(& rc_dev_attrs)}; [L4583] static struct attribute_group const *rc_dev_attr_groups[2U] = { (struct attribute_group const *)(& rc_dev_attr_grp), 0}; [L4584-L4585] static struct device_type rc_dev_type = {0, (struct attribute_group const **)(& rc_dev_attr_groups), & rc_dev_uevent, 0, & rc_dev_release, 0}; [L4884] char *ldvarg3 ; [L4885] struct device *dev_attr_protocols_group0 ; [L4886] struct kobj_uevent_env *ldvarg0 ; [L4887] char *ldvarg5 ; [L4888] struct device *ldvarg1 ; [L4889] int ldv_retval_0 ; [L4890] size_t ldvarg4 ; [L4892] struct device_attribute *dev_attr_protocols_group1 ; [L4894] struct device *rc_dev_type_group0 ; [L4895] umode_t *ldvarg2 ; [L5297] static struct list_head ir_raw_client_list = {& ir_raw_client_list, & ir_raw_client_list}; [L5298-L5301] static struct mutex ir_raw_handler_lock = {{1}, {{{{{0U}}, 3735899821U, 4294967295U, 0xffffffffffffffffUL, {0, {0, 0}, "ir_raw_handler_lock.wait_lock", 0, 0UL}}}}, {& ir_raw_handler_lock.wait_list, & ir_raw_handler_lock.wait_list}, 0, 0, (void *)(& ir_raw_handler_lock), {0, {0, 0}, "ir_raw_handler_lock", 0, 0UL}}; [L5302] static struct list_head ir_raw_handler_list = {& ir_raw_handler_list, & ir_raw_handler_list}; [L5303] static u64 available_protocols ; [L5304] static struct work_struct wq_load ; [L6040] static int ldv_mutex_cred_guard_mutex_of_signal_struct ; [L6143] static int ldv_mutex_ir_raw_handler_lock ; [L6245] static int ldv_mutex_lock ; [L6347] static int ldv_mutex_lock_of_rc_dev ; [L6449] static int ldv_mutex_mutex_of_device ; VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:0}, dev_attr_protocols_group1={0:0}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=0, ldv_mutex_ir_raw_handler_lock=0, ldv_mutex_lock=0, ldv_mutex_lock_of_rc_dev=0, ldv_mutex_mutex_of_device=0, ldv_retval_0=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L4898] int tmp ; [L4899] int tmp___0 ; [L4900] int tmp___1 ; [L4901] int tmp___2 ; [L4902] int tmp___3 ; [L4904] ldvarg0 = (struct kobj_uevent_env*) __VERIFIER_nondet_long () [L4905] ldvarg1 = (struct device*) __VERIFIER_nondet_long () [L4906] ldvarg2 = (umode_t *) __VERIFIER_nondet_long () [L4907] ldvarg3 = (char*) __VERIFIER_nondet_long () [L4908] ldvarg4 = (size_t) __VERIFIER_nondet_long () [L4909] ldvarg5 = (char*) __VERIFIER_nondet_long () [L4910] dev_attr_protocols_group0 = (struct device *)__VERIFIER_nondet_long () [L4911] dev_attr_protocols_group1 = (struct device_attribute *)__VERIFIER_nondet_long () [L4912] rc_dev_type_group0 = (struct device*) __VERIFIER_nondet_long () [L4913] CALL ldv_initialize() [L6554] ldv_mutex_cred_guard_mutex_of_signal_struct = 1 [L6555] ldv_mutex_ir_raw_handler_lock = 1 [L6556] ldv_mutex_lock = 1 [L6557] ldv_mutex_lock_of_rc_dev = 1 [L6558] ldv_mutex_mutex_of_device = 1 VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L4913] RET ldv_initialize() [L4914] ldv_state_variable_1 = 0 [L4915] ref_cnt = 0 [L4916] ldv_state_variable_0 = 1 [L4917] ldv_state_variable_3 = 0 [L4918] ldv_state_variable_2 = 0 VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=1, wq_load={201:0}] [L4962] COND TRUE ldv_state_variable_0 != 0 [L4963] tmp___1 = __VERIFIER_nondet_int() [L4965] case 0: [L4973] case 1: VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=1, tmp___1=1, wq_load={201:0}] [L4974] COND TRUE ldv_state_variable_0 == 1 [L4975] CALL, EXPR rc_core_init() [L4861] int rc ; [L4862] struct lock_class_key __key ; [L4863] int tmp ; [L4865] CALL, EXPR __class_register(& ir_input_class, & __key) [L6590] return __VERIFIER_nondet_int(); [L4865] RET, EXPR __class_register(& ir_input_class, & __key) [L4865] tmp = __class_register(& ir_input_class, & __key) [L4866] rc = tmp VAL [__key={203:0}, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc=0, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=0, wq_load={201:0}] [L4867] COND FALSE !(rc != 0) [L4872] CALL rc_map_register(& empty_map) [L3536] CALL spin_lock(& rc_map_lock) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L3319] FCALL _raw_spin_lock(& lock->ldv_5961.rlock) [L3536] RET spin_lock(& rc_map_lock) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, map={190:0}, map={190:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L3537] CALL list_add_tail(& map->list, & rc_map_list) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L3236] EXPR head->prev [L3236] FCALL __list_add(new, head->prev, head) [L3537] RET list_add_tail(& map->list, & rc_map_list) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, map={190:0}, map={190:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L3538] CALL spin_unlock(& rc_map_lock) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L3326] FCALL _raw_spin_unlock(& lock->ldv_5961.rlock) [L3538] RET spin_unlock(& rc_map_lock) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, map={190:0}, map={190:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L3539] return (0); VAL [\result=0, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, map={190:0}, map={190:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L4872] RET rc_map_register(& empty_map) [L4873] return (0); [L4873] return (0); VAL [\result=0, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc=0, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=0, wq_load={201:0}] [L4975] RET, EXPR rc_core_init() [L4975] ldv_retval_0 = rc_core_init() [L4976] COND TRUE ldv_retval_0 == 0 [L4977] ldv_state_variable_0 = 3 [L4978] ldv_state_variable_2 = 1 [L4979] ldv_state_variable_3 = 1 [L4980] ldv_state_variable_1 = 1 VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=1, tmp___1=1, wq_load={201:0}] [L4983] COND FALSE !(ldv_retval_0 != 0) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=1, tmp___1=1, wq_load={201:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: [L4998] case 2: [L5016] case 3: VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=3, tmp___1=1, wq_load={201:0}] [L5017] COND TRUE ldv_state_variable_2 != 0 [L5018] tmp___3 = __VERIFIER_nondet_int() [L5020] case 0: [L5028] case 1: VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=1, wq_load={201:0}] [L5029] COND TRUE ldv_state_variable_2 == 1 [L5030] CALL show_protocols(dev_attr_protocols_group0, dev_attr_protocols_group1, ldvarg3) [L4254] struct rc_dev *dev ; [L4255] struct device const *__mptr ; [L4256] u64 allowed ; [L4257] u64 enabled ; [L4258] char *tmp ; [L4259] int i ; [L4260] struct _ddebug descriptor ; [L4261] long tmp___0 ; [L4262] int tmp___1 ; [L4263] int tmp___2 ; [L4265] __mptr = (struct device const *)device [L4266] dev = (struct rc_dev *)__mptr [L4267] tmp = buf VAL [__mptr={0:-1227}, available_protocols=0, buf={0:-5}, buf={0:-5}, descriptor={204:0}, dev={0:-1227}, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, device={0:-1227}, device={0:-1227}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, mattr={0:-4}, mattr={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp={0:-5}, wq_load={201:0}] [L4268] COND FALSE !((unsigned long )dev == (unsigned long )((struct rc_dev *)0)) [L4272] CALL ldv_mutex_lock_6(& dev->lock) [L5099] CALL ldv_mutex_lock_lock_of_rc_dev(ldv_func_arg1) VAL [\old(ldv_mutex_lock_of_rc_dev)=1, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, lock={0:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L6383] COND TRUE ldv_mutex_lock_of_rc_dev == 1 VAL [\old(ldv_mutex_lock_of_rc_dev)=1, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, lock={0:0}, lock={0:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L6387] ldv_mutex_lock_of_rc_dev = 2 VAL [\old(ldv_mutex_lock_of_rc_dev)=1, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, lock={0:0}, lock={0:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L5099] RET ldv_mutex_lock_lock_of_rc_dev(ldv_func_arg1) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_func_arg1={0:0}, ldv_func_arg1={0:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L5100] FCALL mutex_lock(ldv_func_arg1) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_func_arg1={0:0}, ldv_func_arg1={0:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L4272] RET ldv_mutex_lock_6(& dev->lock) [L4273] EXPR dev->driver_type VAL [__mptr={0:-1227}, available_protocols=0, buf={0:-5}, buf={0:-5}, descriptor={204:0}, dev={0:-1227}, dev->driver_type=4294967297, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, device={0:-1227}, device={0:-1227}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, mattr={0:-4}, mattr={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp={0:-5}, wq_load={201:0}] [L4273] COND FALSE !((unsigned int )dev->driver_type == 0U) [L4277] EXPR dev->raw VAL [__mptr={0:-1227}, available_protocols=0, buf={0:-5}, buf={0:-5}, descriptor={204:0}, dev={0:-1227}, dev->raw={0:0}, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, device={0:-1227}, device={0:-1227}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, mattr={0:-4}, mattr={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp={0:-5}, wq_load={201:0}] [L4277] COND FALSE !((unsigned long )dev->raw != (unsigned long )((struct ir_raw_event_ctrl *)0)) [L4281] return (-19L); [L4281] return (-19L); VAL [\result=-19, __mptr={0:-1227}, available_protocols=0, buf={0:-5}, buf={0:-5}, dev={0:-1227}, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, device={0:-1227}, device={0:-1227}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, mattr={0:-4}, mattr={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp={0:-5}, wq_load={201:0}] [L5030] RET show_protocols(dev_attr_protocols_group0, dev_attr_protocols_group1, ldvarg3) [L5031] ldv_state_variable_2 = 1 VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=1, wq_load={201:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: [L4998] case 2: [L5016] case 3: VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=1, wq_load={201:0}] [L5017] COND TRUE ldv_state_variable_2 != 0 [L5018] tmp___3 = __VERIFIER_nondet_int() [L5020] case 0: VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=0, wq_load={201:0}] [L5021] COND TRUE ldv_state_variable_2 == 1 [L5022-L5023] CALL store_protocols(dev_attr_protocols_group0, dev_attr_protocols_group1, (char const *)ldvarg5, ldvarg4) [L4333] struct rc_dev *dev ; [L4334] struct device const *__mptr ; [L4335] bool enable ; [L4336] bool disable ; [L4337] char const *tmp ; [L4338] u64 type ; [L4339] u64 mask ; [L4340] int rc ; [L4341] int i ; [L4342] int count ; [L4343] unsigned long flags ; [L4344] ssize_t ret ; [L4345] struct _ddebug descriptor ; [L4346] long tmp___0 ; [L4347] int tmp___1 ; [L4348] struct _ddebug descriptor___0 ; [L4349] long tmp___2 ; [L4350] char *tmp___3 ; [L4351] struct _ddebug descriptor___1 ; [L4352] long tmp___4 ; [L4353] struct _ddebug descriptor___2 ; [L4354] long tmp___5 ; [L4355] raw_spinlock_t *tmp___6 ; [L4356] struct _ddebug descriptor___3 ; [L4357] long tmp___7 ; [L4359] __mptr = (struct device const *)device [L4360] dev = (struct rc_dev *)__mptr [L4361] count = 0 VAL [\old(len)=18446744073709551613, __mptr={0:-1227}, available_protocols=0, count=0, data={0:-2}, data={210:0}, descriptor={202:0}, descriptor___0={208:0}, descriptor___1={206:0}, descriptor___2={207:0}, descriptor___3={209:0}, dev={0:-1227}, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, device={0:-1227}, device={0:-1227}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, len=18446744073709551613, mattr={0:-4}, mattr={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, type={205:0}, wq_load={201:0}] [L4362] COND FALSE !((unsigned long )dev == (unsigned long )((struct rc_dev *)0)) [L4366] CALL ldv_mutex_lock_8(& dev->lock) [L5115] CALL ldv_mutex_lock_lock_of_rc_dev(ldv_func_arg1) VAL [\old(ldv_mutex_lock_of_rc_dev)=2, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, lock={0:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L6383] COND FALSE !(ldv_mutex_lock_of_rc_dev == 1) VAL [\old(ldv_mutex_lock_of_rc_dev)=2, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, lock={0:0}, lock={0:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L6385] CALL ldv_error() VAL [\old(ldv_mutex_lock_of_rc_dev)=2, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L6023] reach_error() VAL [\old(ldv_mutex_lock_of_rc_dev)=2, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-4}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-5}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 317 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2760 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2724 mSDsluCounter, 6465 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2622 mSDsCounter, 245 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 733 IncrementalHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 245 mSolverCounterUnsat, 3843 mSDtfsCounter, 733 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=598occurred in iteration=5, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 87 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 265 ConstructedInterpolants, 0 QuantifiedInterpolants, 509 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 24/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-21 16:04:48,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:04:49,967 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:04:49,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:04:49,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:04:50,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:04:50,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:04:50,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:04:50,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:04:50,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:04:50,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:04:50,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:04:50,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:04:50,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:04:50,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:04:50,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:04:50,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:04:50,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:04:50,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:04:50,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:04:50,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:04:50,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:04:50,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:04:50,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:04:50,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:04:50,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:04:50,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:04:50,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:04:50,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:04:50,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:04:50,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:04:50,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:04:50,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:04:50,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:04:50,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:04:50,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:04:50,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:04:50,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:04:50,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:04:50,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:04:50,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:04:50,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:04:50,056 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-21 16:04:50,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:04:50,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:04:50,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:04:50,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:04:50,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:04:50,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:04:50,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:04:50,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:04:50,089 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:04:50,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:04:50,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:04:50,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:04:50,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:04:50,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:04:50,091 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 16:04:50,091 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 16:04:50,091 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 16:04:50,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:04:50,091 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:04:50,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:04:50,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:04:50,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:04:50,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:04:50,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:04:50,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:04:50,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:04:50,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:04:50,092 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 16:04:50,093 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 16:04:50,093 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:04:50,093 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:04:50,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:04:50,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:04:50,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 16:04:50,093 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 [2021-12-21 16:04:50,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:04:50,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:04:50,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:04:50,376 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:04:50,376 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:04:50,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-12-21 16:04:50,433 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a33e9c759/45909d8d655645d68940aa2bb8c0b114/FLAG280b3fd98 [2021-12-21 16:04:51,020 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:04:51,020 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-12-21 16:04:51,051 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a33e9c759/45909d8d655645d68940aa2bb8c0b114/FLAG280b3fd98 [2021-12-21 16:04:51,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a33e9c759/45909d8d655645d68940aa2bb8c0b114 [2021-12-21 16:04:51,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:04:51,409 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:04:51,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:04:51,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:04:51,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:04:51,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:04:51" (1/1) ... [2021-12-21 16:04:51,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7b014e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:51, skipping insertion in model container [2021-12-21 16:04:51,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:04:51" (1/1) ... [2021-12-21 16:04:51,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:04:51,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:04:52,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-12-21 16:04:52,492 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-21 16:04:52,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:04:52,525 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-21 16:04:52,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:04:52,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-12-21 16:04:52,748 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-21 16:04:52,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:04:52,761 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:04:52,926 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-12-21 16:04:52,934 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-21 16:04:52,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:04:53,001 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:04:53,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:53 WrapperNode [2021-12-21 16:04:53,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:04:53,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:04:53,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:04:53,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:04:53,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:53" (1/1) ... [2021-12-21 16:04:53,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:53" (1/1) ... [2021-12-21 16:04:53,145 INFO L137 Inliner]: procedures = 274, calls = 1650, calls flagged for inlining = 99, calls inlined = 32, statements flattened = 1331 [2021-12-21 16:04:53,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:04:53,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:04:53,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:04:53,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:04:53,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:53" (1/1) ... [2021-12-21 16:04:53,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:53" (1/1) ... [2021-12-21 16:04:53,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:53" (1/1) ... [2021-12-21 16:04:53,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:53" (1/1) ... [2021-12-21 16:04:53,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:53" (1/1) ... [2021-12-21 16:04:53,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:53" (1/1) ... [2021-12-21 16:04:53,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:53" (1/1) ... [2021-12-21 16:04:53,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:04:53,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:04:53,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:04:53,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:04:53,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:53" (1/1) ... [2021-12-21 16:04:53,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:04:53,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:04:53,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 16:04:53,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 16:04:53,375 INFO L130 BoogieDeclarations]: Found specification of procedure ir_lookup_by_scancode [2021-12-21 16:04:53,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_lookup_by_scancode [2021-12-21 16:04:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-21 16:04:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-21 16:04:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-21 16:04:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:04:53,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-21 16:04:53,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:04:53,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ir_raw_handler_lock [2021-12-21 16:04:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ir_raw_handler_lock [2021-12-21 16:04:53,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:04:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:04:53,377 INFO L130 BoogieDeclarations]: Found specification of procedure rc_dev_uevent [2021-12-21 16:04:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_dev_uevent [2021-12-21 16:04:53,377 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:04:53,377 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:04:53,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:04:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:04:53,378 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-21 16:04:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-21 16:04:53,378 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 16:04:53,378 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 16:04:53,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:04:53,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:04:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:04:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:04:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-21 16:04:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-21 16:04:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-21 16:04:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:04:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-21 16:04:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2021-12-21 16:04:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2021-12-21 16:04:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:04:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-21 16:04:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 16:04:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-21 16:04:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-21 16:04:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-21 16:04:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-21 16:04:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-21 16:04:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-21 16:04:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_rc_dev [2021-12-21 16:04:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_rc_dev [2021-12-21 16:04:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-21 16:04:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-21 16:04:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_rc_dev [2021-12-21 16:04:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_rc_dev [2021-12-21 16:04:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure rc_dev_release [2021-12-21 16:04:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_dev_release [2021-12-21 16:04:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:04:53,383 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:04:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-21 16:04:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-21 16:04:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ir_raw_handler_lock [2021-12-21 16:04:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ir_raw_handler_lock [2021-12-21 16:04:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-21 16:04:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-21 16:04:53,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-21 16:04:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-21 16:04:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-12-21 16:04:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-12-21 16:04:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:04:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:04:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:04:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:04:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:04:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-21 16:04:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-21 16:04:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-21 16:04:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure input_scancode_to_scalar [2021-12-21 16:04:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure input_scancode_to_scalar [2021-12-21 16:04:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-21 16:04:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-21 16:04:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-21 16:04:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-21 16:04:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-21 16:04:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:04:53,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:04:53,629 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:04:53,631 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:04:59,124 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:04:59,130 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:04:59,130 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 16:04:59,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:04:59 BoogieIcfgContainer [2021-12-21 16:04:59,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:04:59,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:04:59,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:04:59,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:04:59,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:04:51" (1/3) ... [2021-12-21 16:04:59,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635db17a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:04:59, skipping insertion in model container [2021-12-21 16:04:59,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:04:53" (2/3) ... [2021-12-21 16:04:59,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635db17a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:04:59, skipping insertion in model container [2021-12-21 16:04:59,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:04:59" (3/3) ... [2021-12-21 16:04:59,137 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-12-21 16:04:59,140 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:04:59,140 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:04:59,178 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:04:59,182 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 16:04:59,182 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:04:59,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 317 states, 239 states have (on average 1.4142259414225942) internal successors, (338), 250 states have internal predecessors, (338), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2021-12-21 16:04:59,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-21 16:04:59,208 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:04:59,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:04:59,209 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:04:59,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:04:59,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1403411196, now seen corresponding path program 1 times [2021-12-21 16:04:59,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 16:04:59,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73032097] [2021-12-21 16:04:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:04:59,229 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 16:04:59,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 16:04:59,232 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 16:04:59,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-21 16:04:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:04:59,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 16:04:59,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:04:59,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:04:59,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:05:00,000 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 16:05:00,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73032097] [2021-12-21 16:05:00,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73032097] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:00,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:00,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:00,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823879115] [2021-12-21 16:05:00,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:00,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:00,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 16:05:00,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:00,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:00,025 INFO L87 Difference]: Start difference. First operand has 317 states, 239 states have (on average 1.4142259414225942) internal successors, (338), 250 states have internal predecessors, (338), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:00,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:00,239 INFO L93 Difference]: Finished difference Result 736 states and 1044 transitions. [2021-12-21 16:05:00,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:00,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-21 16:05:00,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:00,253 INFO L225 Difference]: With dead ends: 736 [2021-12-21 16:05:00,254 INFO L226 Difference]: Without dead ends: 414 [2021-12-21 16:05:00,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:00,263 INFO L933 BasicCegarLoop]: 461 mSDtfsCounter, 142 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:00,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 879 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:00,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-12-21 16:05:00,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 399. [2021-12-21 16:05:00,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 306 states have (on average 1.4248366013071896) internal successors, (436), 316 states have internal predecessors, (436), 62 states have call successors, (62), 31 states have call predecessors, (62), 30 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2021-12-21 16:05:00,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 551 transitions. [2021-12-21 16:05:00,345 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 551 transitions. Word has length 17 [2021-12-21 16:05:00,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:00,345 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 551 transitions. [2021-12-21 16:05:00,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:00,346 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 551 transitions. [2021-12-21 16:05:00,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-21 16:05:00,348 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:00,348 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:00,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-21 16:05:00,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 16:05:00,564 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:00,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:00,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1255176370, now seen corresponding path program 1 times [2021-12-21 16:05:00,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 16:05:00,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89164120] [2021-12-21 16:05:00,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:00,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 16:05:00,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 16:05:00,567 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 16:05:00,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-21 16:05:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:01,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 16:05:01,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:05:01,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:01,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:05:01,263 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 16:05:01,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89164120] [2021-12-21 16:05:01,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [89164120] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:01,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:01,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 16:05:01,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454753027] [2021-12-21 16:05:01,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:01,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 16:05:01,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 16:05:01,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 16:05:01,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 16:05:01,266 INFO L87 Difference]: Start difference. First operand 399 states and 551 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:01,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:01,420 INFO L93 Difference]: Finished difference Result 826 states and 1142 transitions. [2021-12-21 16:05:01,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:05:01,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-21 16:05:01,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:01,424 INFO L225 Difference]: With dead ends: 826 [2021-12-21 16:05:01,424 INFO L226 Difference]: Without dead ends: 430 [2021-12-21 16:05:01,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:05:01,426 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 41 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:01,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 1275 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:01,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-12-21 16:05:01,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 373. [2021-12-21 16:05:01,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 290 states have (on average 1.4379310344827587) internal successors, (417), 299 states have internal predecessors, (417), 56 states have call successors, (56), 27 states have call predecessors, (56), 26 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-12-21 16:05:01,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 520 transitions. [2021-12-21 16:05:01,436 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 520 transitions. Word has length 19 [2021-12-21 16:05:01,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:01,437 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 520 transitions. [2021-12-21 16:05:01,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:01,437 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 520 transitions. [2021-12-21 16:05:01,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-21 16:05:01,438 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:01,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:01,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-21 16:05:01,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 16:05:01,658 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:01,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:01,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1312434672, now seen corresponding path program 1 times [2021-12-21 16:05:01,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 16:05:01,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548906895] [2021-12-21 16:05:01,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:01,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 16:05:01,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 16:05:01,662 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 16:05:01,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-21 16:05:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:02,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 16:05:02,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:05:02,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:02,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:05:02,299 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 16:05:02,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548906895] [2021-12-21 16:05:02,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548906895] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:02,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:02,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:02,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542055088] [2021-12-21 16:05:02,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:02,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:02,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 16:05:02,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:02,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:02,301 INFO L87 Difference]: Start difference. First operand 373 states and 520 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:02,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:02,394 INFO L93 Difference]: Finished difference Result 375 states and 521 transitions. [2021-12-21 16:05:02,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:02,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-21 16:05:02,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:02,399 INFO L225 Difference]: With dead ends: 375 [2021-12-21 16:05:02,400 INFO L226 Difference]: Without dead ends: 372 [2021-12-21 16:05:02,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:02,401 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 408 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:02,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 423 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:02,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-12-21 16:05:02,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2021-12-21 16:05:02,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 290 states have (on average 1.4344827586206896) internal successors, (416), 298 states have internal predecessors, (416), 55 states have call successors, (55), 27 states have call predecessors, (55), 26 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-12-21 16:05:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 518 transitions. [2021-12-21 16:05:02,420 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 518 transitions. Word has length 19 [2021-12-21 16:05:02,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:02,420 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 518 transitions. [2021-12-21 16:05:02,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:02,420 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 518 transitions. [2021-12-21 16:05:02,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-21 16:05:02,424 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:02,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:02,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-21 16:05:02,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 16:05:02,640 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:02,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:02,640 INFO L85 PathProgramCache]: Analyzing trace with hash 2030613114, now seen corresponding path program 1 times [2021-12-21 16:05:02,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 16:05:02,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786474184] [2021-12-21 16:05:02,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:02,641 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 16:05:02,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 16:05:02,642 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 16:05:02,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-21 16:05:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:03,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 16:05:03,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:05:03,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:03,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:05:03,317 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 16:05:03,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786474184] [2021-12-21 16:05:03,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786474184] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:03,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:03,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:03,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674655355] [2021-12-21 16:05:03,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:03,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:03,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 16:05:03,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:03,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:03,318 INFO L87 Difference]: Start difference. First operand 372 states and 518 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:03,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:03,422 INFO L93 Difference]: Finished difference Result 379 states and 522 transitions. [2021-12-21 16:05:03,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:03,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-21 16:05:03,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:03,427 INFO L225 Difference]: With dead ends: 379 [2021-12-21 16:05:03,427 INFO L226 Difference]: Without dead ends: 375 [2021-12-21 16:05:03,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:03,428 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 391 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:03,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 429 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:03,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-12-21 16:05:03,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2021-12-21 16:05:03,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 292 states have (on average 1.4246575342465753) internal successors, (416), 298 states have internal predecessors, (416), 53 states have call successors, (53), 28 states have call predecessors, (53), 27 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-12-21 16:05:03,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 516 transitions. [2021-12-21 16:05:03,438 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 516 transitions. Word has length 20 [2021-12-21 16:05:03,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:03,439 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 516 transitions. [2021-12-21 16:05:03,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:03,439 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 516 transitions. [2021-12-21 16:05:03,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-21 16:05:03,440 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:03,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:03,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-21 16:05:03,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 16:05:03,651 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:03,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:03,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1475654093, now seen corresponding path program 1 times [2021-12-21 16:05:03,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 16:05:03,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1319868223] [2021-12-21 16:05:03,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:03,653 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 16:05:03,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 16:05:03,654 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 16:05:03,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-21 16:05:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:04,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 16:05:04,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:05:04,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:04,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:05:04,299 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 16:05:04,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1319868223] [2021-12-21 16:05:04,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1319868223] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:04,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:04,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:04,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106932514] [2021-12-21 16:05:04,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:04,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:04,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 16:05:04,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:04,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:04,300 INFO L87 Difference]: Start difference. First operand 373 states and 516 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:04,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:04,389 INFO L93 Difference]: Finished difference Result 375 states and 517 transitions. [2021-12-21 16:05:04,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:04,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-21 16:05:04,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:04,391 INFO L225 Difference]: With dead ends: 375 [2021-12-21 16:05:04,391 INFO L226 Difference]: Without dead ends: 372 [2021-12-21 16:05:04,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:04,392 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 400 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:04,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 417 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:04,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-12-21 16:05:04,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2021-12-21 16:05:04,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 292 states have (on average 1.4212328767123288) internal successors, (415), 297 states have internal predecessors, (415), 52 states have call successors, (52), 28 states have call predecessors, (52), 27 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-12-21 16:05:04,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 514 transitions. [2021-12-21 16:05:04,401 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 514 transitions. Word has length 21 [2021-12-21 16:05:04,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:04,401 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 514 transitions. [2021-12-21 16:05:04,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:04,401 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 514 transitions. [2021-12-21 16:05:04,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-21 16:05:04,402 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:04,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:04,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-21 16:05:04,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 16:05:04,615 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:04,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:04,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1499217053, now seen corresponding path program 1 times [2021-12-21 16:05:04,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 16:05:04,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120701447] [2021-12-21 16:05:04,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:04,617 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 16:05:04,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 16:05:04,618 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 16:05:04,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-21 16:05:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:05,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 16:05:05,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:05:05,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:05,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:05:05,229 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 16:05:05,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120701447] [2021-12-21 16:05:05,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120701447] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:05,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:05,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:05,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263657583] [2021-12-21 16:05:05,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:05,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:05,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 16:05:05,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:05,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:05,231 INFO L87 Difference]: Start difference. First operand 372 states and 514 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:05,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:05,330 INFO L93 Difference]: Finished difference Result 552 states and 772 transitions. [2021-12-21 16:05:05,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:05,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-21 16:05:05,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:05,333 INFO L225 Difference]: With dead ends: 552 [2021-12-21 16:05:05,333 INFO L226 Difference]: Without dead ends: 548 [2021-12-21 16:05:05,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:05,333 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 152 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:05,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 826 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:05,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2021-12-21 16:05:05,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 546. [2021-12-21 16:05:05,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 439 states have (on average 1.4464692482915718) internal successors, (635), 445 states have internal predecessors, (635), 68 states have call successors, (68), 40 states have call predecessors, (68), 38 states have return successors, (63), 61 states have call predecessors, (63), 63 states have call successors, (63) [2021-12-21 16:05:05,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 766 transitions. [2021-12-21 16:05:05,348 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 766 transitions. Word has length 22 [2021-12-21 16:05:05,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:05,348 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 766 transitions. [2021-12-21 16:05:05,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:05,349 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 766 transitions. [2021-12-21 16:05:05,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-21 16:05:05,349 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:05,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:05:05,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-21 16:05:05,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 16:05:05,553 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:05,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:05,554 INFO L85 PathProgramCache]: Analyzing trace with hash -769053066, now seen corresponding path program 1 times [2021-12-21 16:05:05,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 16:05:05,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958264523] [2021-12-21 16:05:05,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:05,555 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 16:05:05,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 16:05:05,556 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 16:05:05,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-21 16:05:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:06,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 16:05:06,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:05:06,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 16:05:06,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:05:06,187 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 16:05:06,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958264523] [2021-12-21 16:05:06,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [958264523] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:06,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:06,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:06,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208405111] [2021-12-21 16:05:06,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:06,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:06,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 16:05:06,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:06,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:06,188 INFO L87 Difference]: Start difference. First operand 546 states and 766 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:06,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:06,264 INFO L93 Difference]: Finished difference Result 548 states and 767 transitions. [2021-12-21 16:05:06,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:06,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-21 16:05:06,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:06,280 INFO L225 Difference]: With dead ends: 548 [2021-12-21 16:05:06,280 INFO L226 Difference]: Without dead ends: 527 [2021-12-21 16:05:06,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:06,281 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 396 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:06,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:06,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2021-12-21 16:05:06,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2021-12-21 16:05:06,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 425 states have (on average 1.4470588235294117) internal successors, (615), 430 states have internal predecessors, (615), 64 states have call successors, (64), 39 states have call predecessors, (64), 37 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2021-12-21 16:05:06,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 739 transitions. [2021-12-21 16:05:06,305 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 739 transitions. Word has length 23 [2021-12-21 16:05:06,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:06,306 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 739 transitions. [2021-12-21 16:05:06,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 16:05:06,306 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 739 transitions. [2021-12-21 16:05:06,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-21 16:05:06,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:06,307 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-21 16:05:06,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-21 16:05:06,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 16:05:06,531 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:06,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:06,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1664175646, now seen corresponding path program 1 times [2021-12-21 16:05:06,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 16:05:06,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361643980] [2021-12-21 16:05:06,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:06,532 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 16:05:06,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 16:05:06,533 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 16:05:06,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-21 16:05:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:07,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 16:05:07,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:05:07,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 16:05:07,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:05:07,306 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 16:05:07,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361643980] [2021-12-21 16:05:07,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361643980] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:07,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:07,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:07,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904680437] [2021-12-21 16:05:07,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:07,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:07,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 16:05:07,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:07,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:07,308 INFO L87 Difference]: Start difference. First operand 527 states and 739 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-21 16:05:07,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:07,410 INFO L93 Difference]: Finished difference Result 1050 states and 1474 transitions. [2021-12-21 16:05:07,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:07,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2021-12-21 16:05:07,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:07,412 INFO L225 Difference]: With dead ends: 1050 [2021-12-21 16:05:07,412 INFO L226 Difference]: Without dead ends: 526 [2021-12-21 16:05:07,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:07,414 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 384 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:07,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 690 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:07,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2021-12-21 16:05:07,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2021-12-21 16:05:07,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 425 states have (on average 1.4423529411764706) internal successors, (613), 429 states have internal predecessors, (613), 63 states have call successors, (63), 39 states have call predecessors, (63), 37 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2021-12-21 16:05:07,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 734 transitions. [2021-12-21 16:05:07,427 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 734 transitions. Word has length 62 [2021-12-21 16:05:07,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:07,428 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 734 transitions. [2021-12-21 16:05:07,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-21 16:05:07,428 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 734 transitions. [2021-12-21 16:05:07,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-21 16:05:07,429 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:07,429 INFO L514 BasicCegarLoop]: trace histogram [2, 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, 1, 1, 1] [2021-12-21 16:05:07,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-21 16:05:07,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 16:05:07,643 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:07,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:07,644 INFO L85 PathProgramCache]: Analyzing trace with hash -656103517, now seen corresponding path program 1 times [2021-12-21 16:05:07,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 16:05:07,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207657072] [2021-12-21 16:05:07,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:07,645 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 16:05:07,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 16:05:07,646 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 16:05:07,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-21 16:05:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:05:08,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 16:05:08,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 16:05:08,432 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-21 16:05:08,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 16:05:08,432 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 16:05:08,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207657072] [2021-12-21 16:05:08,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207657072] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:05:08,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:05:08,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 16:05:08,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828774877] [2021-12-21 16:05:08,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:05:08,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-21 16:05:08,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 16:05:08,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 16:05:08,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:08,433 INFO L87 Difference]: Start difference. First operand 526 states and 734 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-21 16:05:08,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:05:08,543 INFO L93 Difference]: Finished difference Result 528 states and 735 transitions. [2021-12-21 16:05:08,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 16:05:08,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2021-12-21 16:05:08,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:05:08,545 INFO L225 Difference]: With dead ends: 528 [2021-12-21 16:05:08,545 INFO L226 Difference]: Without dead ends: 525 [2021-12-21 16:05:08,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 16:05:08,546 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:05:08,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 809 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 16:05:08,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2021-12-21 16:05:08,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2021-12-21 16:05:08,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 425 states have (on average 1.44) internal successors, (612), 428 states have internal predecessors, (612), 62 states have call successors, (62), 39 states have call predecessors, (62), 37 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2021-12-21 16:05:08,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 732 transitions. [2021-12-21 16:05:08,557 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 732 transitions. Word has length 71 [2021-12-21 16:05:08,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:05:08,558 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 732 transitions. [2021-12-21 16:05:08,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-21 16:05:08,558 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 732 transitions. [2021-12-21 16:05:08,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-21 16:05:08,559 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:05:08,559 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 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] [2021-12-21 16:05:08,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-12-21 16:05:08,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 16:05:08,780 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:05:08,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:05:08,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1176347224, now seen corresponding path program 1 times [2021-12-21 16:05:08,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 16:05:08,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792496327] [2021-12-21 16:05:08,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:05:08,782 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 16:05:08,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 16:05:08,783 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 16:05:08,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-21 16:05:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 16:05:32,724 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.