./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 0f8a17c6 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 0.2.1-dev-0f8a17c [2021-11-16 23:51:45,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-16 23:51:45,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-16 23:51:45,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-16 23:51:45,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-16 23:51:45,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-16 23:51:45,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-16 23:51:45,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-16 23:51:45,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-16 23:51:45,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-16 23:51:45,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-16 23:51:45,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-16 23:51:45,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-16 23:51:45,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-16 23:51:45,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-16 23:51:45,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-16 23:51:45,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-16 23:51:45,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-16 23:51:45,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-16 23:51:45,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-16 23:51:45,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-16 23:51:45,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-16 23:51:45,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-16 23:51:45,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-16 23:51:45,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-16 23:51:45,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-16 23:51:45,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-16 23:51:45,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-16 23:51:45,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-16 23:51:45,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-16 23:51:45,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-16 23:51:45,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-16 23:51:45,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-16 23:51:45,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-16 23:51:45,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-16 23:51:45,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-16 23:51:45,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-16 23:51:45,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-16 23:51:45,172 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-16 23:51:45,173 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-16 23:51:45,174 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-16 23:51:45,175 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-16 23:51:45,206 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-16 23:51:45,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-16 23:51:45,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-16 23:51:45,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-16 23:51:45,208 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-16 23:51:45,208 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-16 23:51:45,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-16 23:51:45,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-16 23:51:45,209 INFO L138 SettingsManager]: * Use SBE=true [2021-11-16 23:51:45,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-16 23:51:45,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-16 23:51:45,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-16 23:51:45,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-16 23:51:45,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-16 23:51:45,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-16 23:51:45,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-16 23:51:45,211 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-16 23:51:45,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-16 23:51:45,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-16 23:51:45,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-16 23:51:45,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-16 23:51:45,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 23:51:45,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-16 23:51:45,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-16 23:51:45,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-16 23:51:45,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-16 23:51:45,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-16 23:51:45,214 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-16 23:51:45,214 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-16 23:51:45,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-16 23:51:45,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-16 23:51:45,214 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 [2021-11-16 23:51:45,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-16 23:51:45,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-16 23:51:45,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-16 23:51:45,461 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-16 23:51:45,461 INFO L275 PluginConnector]: CDTParser initialized [2021-11-16 23:51:45,463 INFO L432 ainManager$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 [2021-11-16 23:51:45,534 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c66424c1c/c83be8ff9dac4653a55f1f7018eca2eb/FLAG5b51fa109 [2021-11-16 23:51:46,254 INFO L306 CDTParser]: Found 1 translation units. [2021-11-16 23:51:46,254 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 [2021-11-16 23:51:46,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c66424c1c/c83be8ff9dac4653a55f1f7018eca2eb/FLAG5b51fa109 [2021-11-16 23:51:46,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c66424c1c/c83be8ff9dac4653a55f1f7018eca2eb [2021-11-16 23:51:46,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-16 23:51:46,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-16 23:51:46,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-16 23:51:46,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-16 23:51:46,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-16 23:51:46,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:51:46" (1/1) ... [2021-11-16 23:51:46,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eba5974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:46, skipping insertion in model container [2021-11-16 23:51:46,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:51:46" (1/1) ... [2021-11-16 23:51:46,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-16 23:51:46,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-16 23:51:47,670 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] [2021-11-16 23:51:47,747 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-16 23:51:47,752 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 23:51:47,777 INFO L203 MainTranslator]: Completed pre-run [2021-11-16 23:51:47,998 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] [2021-11-16 23:51:48,014 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-16 23:51:48,016 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 23:51:48,084 INFO L208 MainTranslator]: Completed translation [2021-11-16 23:51:48,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:48 WrapperNode [2021-11-16 23:51:48,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-16 23:51:48,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-16 23:51:48,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-16 23:51:48,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-16 23:51:48,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:48" (1/1) ... [2021-11-16 23:51:48,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:48" (1/1) ... [2021-11-16 23:51:48,207 INFO L137 Inliner]: procedures = 259, calls = 1650, calls flagged for inlining = 99, calls inlined = 32, statements flattened = 1354 [2021-11-16 23:51:48,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-16 23:51:48,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-16 23:51:48,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-16 23:51:48,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-16 23:51:48,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:48" (1/1) ... [2021-11-16 23:51:48,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:48" (1/1) ... [2021-11-16 23:51:48,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:48" (1/1) ... [2021-11-16 23:51:48,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:48" (1/1) ... [2021-11-16 23:51:48,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:48" (1/1) ... [2021-11-16 23:51:48,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:48" (1/1) ... [2021-11-16 23:51:48,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:48" (1/1) ... [2021-11-16 23:51:48,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-16 23:51:48,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-16 23:51:48,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-16 23:51:48,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-16 23:51:48,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:48" (1/1) ... [2021-11-16 23:51:48,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 23:51:48,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 23:51:48,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-16 23:51:48,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-16 23:51:48,387 INFO L130 BoogieDeclarations]: Found specification of procedure ir_lookup_by_scancode [2021-11-16 23:51:48,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_lookup_by_scancode [2021-11-16 23:51:48,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-16 23:51:48,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-16 23:51:48,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ir_raw_handler_lock [2021-11-16 23:51:48,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ir_raw_handler_lock [2021-11-16 23:51:48,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-16 23:51:48,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-16 23:51:48,388 INFO L130 BoogieDeclarations]: Found specification of procedure rc_dev_uevent [2021-11-16 23:51:48,388 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_dev_uevent [2021-11-16 23:51:48,389 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-16 23:51:48,389 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-16 23:51:48,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-16 23:51:48,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-16 23:51:48,389 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-16 23:51:48,389 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-16 23:51:48,389 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-16 23:51:48,390 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-16 23:51:48,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-16 23:51:48,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-16 23:51:48,390 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-16 23:51:48,390 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-16 23:51:48,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-16 23:51:48,390 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2021-11-16 23:51:48,391 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2021-11-16 23:51:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-16 23:51:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-16 23:51:48,391 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-16 23:51:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-16 23:51:48,391 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-16 23:51:48,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_rc_dev [2021-11-16 23:51:48,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_rc_dev [2021-11-16 23:51:48,392 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-16 23:51:48,392 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-16 23:51:48,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_rc_dev [2021-11-16 23:51:48,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_rc_dev [2021-11-16 23:51:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-16 23:51:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure rc_dev_release [2021-11-16 23:51:48,393 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_dev_release [2021-11-16 23:51:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-16 23:51:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-16 23:51:48,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-16 23:51:48,394 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-16 23:51:48,394 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-16 23:51:48,394 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-16 23:51:48,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ir_raw_handler_lock [2021-11-16 23:51:48,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ir_raw_handler_lock [2021-11-16 23:51:48,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-16 23:51:48,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-16 23:51:48,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-16 23:51:48,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-16 23:51:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-16 23:51:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-16 23:51:48,396 INFO L130 BoogieDeclarations]: Found specification of procedure input_scancode_to_scalar [2021-11-16 23:51:48,396 INFO L138 BoogieDeclarations]: Found implementation of procedure input_scancode_to_scalar [2021-11-16 23:51:48,397 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-16 23:51:48,398 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-16 23:51:48,398 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-16 23:51:48,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-16 23:51:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-16 23:51:48,399 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-16 23:51:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-16 23:51:48,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-16 23:51:48,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-16 23:51:48,672 INFO L236 CfgBuilder]: Building ICFG [2021-11-16 23:51:48,674 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-16 23:51:51,282 INFO L277 CfgBuilder]: Performing block encoding [2021-11-16 23:51:51,290 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-16 23:51:51,291 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-16 23:51:51,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:51:51 BoogieIcfgContainer [2021-11-16 23:51:51,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-16 23:51:51,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-16 23:51:51,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-16 23:51:51,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-16 23:51:51,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:51:46" (1/3) ... [2021-11-16 23:51:51,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af4b0c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:51:51, skipping insertion in model container [2021-11-16 23:51:51,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:51:48" (2/3) ... [2021-11-16 23:51:51,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af4b0c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:51:51, skipping insertion in model container [2021-11-16 23:51:51,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:51:51" (3/3) ... [2021-11-16 23:51:51,301 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-16 23:51:51,306 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-16 23:51:51,306 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-16 23:51:51,358 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-16 23:51:51,366 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-16 23:51:51,367 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-16 23:51:51,403 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) [2021-11-16 23:51:51,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-16 23:51:51,413 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:51:51,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:51:51,414 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:51:51,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:51:51,420 INFO L85 PathProgramCache]: Analyzing trace with hash 273593741, now seen corresponding path program 1 times [2021-11-16 23:51:51,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:51:51,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402035506] [2021-11-16 23:51:51,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:51:51,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:51:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:51:51,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:51:51,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:51:51,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402035506] [2021-11-16 23:51:51,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402035506] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:51:51,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:51:51,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-16 23:51:51,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407498090] [2021-11-16 23:51:51,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:51:51,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:51:51,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:51:51,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:51:51,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:51:51,924 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) [2021-11-16 23:51:52,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:51:52,105 INFO L93 Difference]: Finished difference Result 736 states and 1044 transitions. [2021-11-16 23:51:52,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:51:52,108 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 [2021-11-16 23:51:52,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:51:52,127 INFO L225 Difference]: With dead ends: 736 [2021-11-16 23:51:52,128 INFO L226 Difference]: Without dead ends: 414 [2021-11-16 23:51:52,139 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 [2021-11-16 23:51:52,144 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, 0.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:51:52,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 857 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-16 23:51:52,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-11-16 23:51:52,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 399. [2021-11-16 23:51:52,226 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) [2021-11-16 23:51:52,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 551 transitions. [2021-11-16 23:51:52,231 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 551 transitions. Word has length 17 [2021-11-16 23:51:52,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:51:52,236 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 551 transitions. [2021-11-16 23:51:52,237 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) [2021-11-16 23:51:52,238 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 551 transitions. [2021-11-16 23:51:52,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-16 23:51:52,241 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:51:52,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:51:52,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-16 23:51:52,242 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:51:52,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:51:52,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1660204033, now seen corresponding path program 1 times [2021-11-16 23:51:52,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:51:52,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431164329] [2021-11-16 23:51:52,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:51:52,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:51:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:51:52,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:51:52,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:51:52,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431164329] [2021-11-16 23:51:52,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431164329] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:51:52,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:51:52,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-16 23:51:52,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917193986] [2021-11-16 23:51:52,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:51:52,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:51:52,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:51:52,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:51:52,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:51:52,436 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) [2021-11-16 23:51:54,469 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:51:54,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:51:54,575 INFO L93 Difference]: Finished difference Result 401 states and 552 transitions. [2021-11-16 23:51:54,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:51:54,576 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 [2021-11-16 23:51:54,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:51:54,583 INFO L225 Difference]: With dead ends: 401 [2021-11-16 23:51:54,584 INFO L226 Difference]: Without dead ends: 398 [2021-11-16 23:51:54,584 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 [2021-11-16 23:51:54,586 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 408 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:51:54,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 423 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-16 23:51:54,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-11-16 23:51:54,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2021-11-16 23:51:54,618 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) [2021-11-16 23:51:54,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 549 transitions. [2021-11-16 23:51:54,623 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 549 transitions. Word has length 19 [2021-11-16 23:51:54,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:51:54,623 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 549 transitions. [2021-11-16 23:51:54,623 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) [2021-11-16 23:51:54,623 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 549 transitions. [2021-11-16 23:51:54,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-16 23:51:54,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:51:54,629 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] [2021-11-16 23:51:54,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-16 23:51:54,630 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:51:54,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:51:54,631 INFO L85 PathProgramCache]: Analyzing trace with hash 73096171, now seen corresponding path program 1 times [2021-11-16 23:51:54,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:51:54,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381587939] [2021-11-16 23:51:54,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:51:54,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:51:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:51:54,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:51:54,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:51:54,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381587939] [2021-11-16 23:51:54,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381587939] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:51:54,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:51:54,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-16 23:51:54,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978406293] [2021-11-16 23:51:54,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:51:54,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:51:54,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:51:54,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:51:54,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:51:54,761 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) [2021-11-16 23:51:55,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:51:55,374 INFO L93 Difference]: Finished difference Result 405 states and 553 transitions. [2021-11-16 23:51:55,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:51:55,375 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 [2021-11-16 23:51:55,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:51:55,377 INFO L225 Difference]: With dead ends: 405 [2021-11-16 23:51:55,377 INFO L226 Difference]: Without dead ends: 401 [2021-11-16 23:51:55,378 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 [2021-11-16 23:51:55,379 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 391 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2021-11-16 23:51:55,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 429 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-16 23:51:55,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-11-16 23:51:55,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 399. [2021-11-16 23:51:55,395 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) [2021-11-16 23:51:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 547 transitions. [2021-11-16 23:51:55,398 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 547 transitions. Word has length 20 [2021-11-16 23:51:55,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:51:55,399 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 547 transitions. [2021-11-16 23:51:55,399 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) [2021-11-16 23:51:55,399 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 547 transitions. [2021-11-16 23:51:55,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-16 23:51:55,400 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:51:55,400 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] [2021-11-16 23:51:55,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-16 23:51:55,401 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:51:55,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:51:55,401 INFO L85 PathProgramCache]: Analyzing trace with hash -2029167486, now seen corresponding path program 1 times [2021-11-16 23:51:55,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:51:55,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883986143] [2021-11-16 23:51:55,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:51:55,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:51:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:51:55,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:51:55,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:51:55,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883986143] [2021-11-16 23:51:55,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883986143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:51:55,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:51:55,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-16 23:51:55,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367543024] [2021-11-16 23:51:55,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:51:55,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:51:55,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:51:55,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:51:55,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:51:55,509 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) [2021-11-16 23:51:55,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:51:55,927 INFO L93 Difference]: Finished difference Result 401 states and 548 transitions. [2021-11-16 23:51:55,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:51:55,928 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 [2021-11-16 23:51:55,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:51:55,931 INFO L225 Difference]: With dead ends: 401 [2021-11-16 23:51:55,931 INFO L226 Difference]: Without dead ends: 398 [2021-11-16 23:51:55,931 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 [2021-11-16 23:51:55,932 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 400 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2021-11-16 23:51:55,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 417 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-16 23:51:55,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-11-16 23:51:55,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2021-11-16 23:51:55,947 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) [2021-11-16 23:51:55,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 545 transitions. [2021-11-16 23:51:55,950 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 545 transitions. Word has length 21 [2021-11-16 23:51:55,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:51:55,950 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 545 transitions. [2021-11-16 23:51:55,950 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) [2021-11-16 23:51:55,950 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 545 transitions. [2021-11-16 23:51:55,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-16 23:51:55,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:51:55,951 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] [2021-11-16 23:51:55,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-16 23:51:55,952 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:51:55,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:51:55,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1520140750, now seen corresponding path program 1 times [2021-11-16 23:51:55,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:51:55,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404256852] [2021-11-16 23:51:55,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:51:55,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:51:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:51:56,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:51:56,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:51:56,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404256852] [2021-11-16 23:51:56,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404256852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:51:56,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:51:56,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-16 23:51:56,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78036801] [2021-11-16 23:51:56,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:51:56,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:51:56,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:51:56,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:51:56,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:51:56,036 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) [2021-11-16 23:51:58,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:51:58,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:51:58,182 INFO L93 Difference]: Finished difference Result 604 states and 834 transitions. [2021-11-16 23:51:58,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:51:58,183 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 [2021-11-16 23:51:58,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:51:58,186 INFO L225 Difference]: With dead ends: 604 [2021-11-16 23:51:58,186 INFO L226 Difference]: Without dead ends: 600 [2021-11-16 23:51:58,187 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 [2021-11-16 23:51:58,187 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 152 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:51:58,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 826 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-16 23:51:58,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-11-16 23:51:58,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 598. [2021-11-16 23:51:58,216 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) [2021-11-16 23:51:58,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 828 transitions. [2021-11-16 23:51:58,221 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 828 transitions. Word has length 22 [2021-11-16 23:51:58,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:51:58,222 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 828 transitions. [2021-11-16 23:51:58,222 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) [2021-11-16 23:51:58,222 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 828 transitions. [2021-11-16 23:51:58,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-16 23:51:58,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:51:58,224 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] [2021-11-16 23:51:58,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-16 23:51:58,225 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:51:58,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:51:58,225 INFO L85 PathProgramCache]: Analyzing trace with hash -120448763, now seen corresponding path program 1 times [2021-11-16 23:51:58,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:51:58,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435371711] [2021-11-16 23:51:58,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:51:58,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:51:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:51:58,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:51:58,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:51:58,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435371711] [2021-11-16 23:51:58,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435371711] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:51:58,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:51:58,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-16 23:51:58,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605255751] [2021-11-16 23:51:58,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:51:58,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:51:58,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:51:58,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:51:58,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:51:58,331 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) [2021-11-16 23:52:00,360 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:52:00,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:52:00,382 INFO L93 Difference]: Finished difference Result 600 states and 829 transitions. [2021-11-16 23:52:00,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:52:00,460 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 [2021-11-16 23:52:00,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:52:00,463 INFO L225 Difference]: With dead ends: 600 [2021-11-16 23:52:00,463 INFO L226 Difference]: Without dead ends: 575 [2021-11-16 23:52:00,463 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 [2021-11-16 23:52:00,464 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 396 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-16 23:52:00,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 2.0s Time] [2021-11-16 23:52:00,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2021-11-16 23:52:00,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2021-11-16 23:52:00,488 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) [2021-11-16 23:52:00,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 796 transitions. [2021-11-16 23:52:00,492 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 796 transitions. Word has length 23 [2021-11-16 23:52:00,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:52:00,493 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 796 transitions. [2021-11-16 23:52:00,493 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) [2021-11-16 23:52:00,493 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 796 transitions. [2021-11-16 23:52:00,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-16 23:52:00,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:52:00,496 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] [2021-11-16 23:52:00,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-16 23:52:00,497 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:52:00,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:52:00,497 INFO L85 PathProgramCache]: Analyzing trace with hash 590221083, now seen corresponding path program 1 times [2021-11-16 23:52:00,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:52:00,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805385920] [2021-11-16 23:52:00,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:52:00,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:52:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:00,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-16 23:52:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:00,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-16 23:52:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:00,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-16 23:52:00,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:52:00,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805385920] [2021-11-16 23:52:00,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805385920] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:52:00,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:52:00,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-16 23:52:00,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172569307] [2021-11-16 23:52:00,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:52:00,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-16 23:52:00,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:52:00,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-16 23:52:00,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-16 23:52:00,638 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) [2021-11-16 23:52:02,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:52:02,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:52:02,633 INFO L93 Difference]: Finished difference Result 1146 states and 1588 transitions. [2021-11-16 23:52:02,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-16 23:52:02,634 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 [2021-11-16 23:52:02,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:52:02,637 INFO L225 Difference]: With dead ends: 1146 [2021-11-16 23:52:02,637 INFO L226 Difference]: Without dead ends: 574 [2021-11-16 23:52:02,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-16 23:52:02,639 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 457 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 1.9s IncrementalHoareTripleChecker+Time [2021-11-16 23:52:02,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [483 Valid, 902 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-16 23:52:02,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-11-16 23:52:02,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2021-11-16 23:52:02,659 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) [2021-11-16 23:52:02,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 791 transitions. [2021-11-16 23:52:02,662 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 791 transitions. Word has length 45 [2021-11-16 23:52:02,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:52:02,662 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 791 transitions. [2021-11-16 23:52:02,663 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) [2021-11-16 23:52:02,663 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 791 transitions. [2021-11-16 23:52:02,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-16 23:52:02,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:52:02,664 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] [2021-11-16 23:52:02,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-16 23:52:02,665 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:52:02,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:52:02,665 INFO L85 PathProgramCache]: Analyzing trace with hash 741731796, now seen corresponding path program 1 times [2021-11-16 23:52:02,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:52:02,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738273529] [2021-11-16 23:52:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:52:02,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:52:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:02,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-16 23:52:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:02,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 23:52:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:02,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-16 23:52:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:02,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-16 23:52:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:02,781 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-16 23:52:02,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:52:02,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738273529] [2021-11-16 23:52:02,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738273529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:52:02,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:52:02,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-16 23:52:02,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242961357] [2021-11-16 23:52:02,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:52:02,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-16 23:52:02,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:52:02,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-16 23:52:02,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-16 23:52:02,783 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) [2021-11-16 23:52:04,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:52:06,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:52:07,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:52:07,384 INFO L93 Difference]: Finished difference Result 576 states and 792 transitions. [2021-11-16 23:52:07,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-16 23:52:07,385 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 [2021-11-16 23:52:07,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:52:07,388 INFO L225 Difference]: With dead ends: 576 [2021-11-16 23:52:07,388 INFO L226 Difference]: Without dead ends: 573 [2021-11-16 23:52:07,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-16 23:52:07,389 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 238 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 108 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-16 23:52:07,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 1031 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 260 Invalid, 2 Unknown, 0 Unchecked, 4.5s Time] [2021-11-16 23:52:07,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-11-16 23:52:07,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2021-11-16 23:52:07,410 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) [2021-11-16 23:52:07,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 789 transitions. [2021-11-16 23:52:07,413 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 789 transitions. Word has length 54 [2021-11-16 23:52:07,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:52:07,413 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 789 transitions. [2021-11-16 23:52:07,414 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) [2021-11-16 23:52:07,414 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 789 transitions. [2021-11-16 23:52:07,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-16 23:52:07,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:52:07,416 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] [2021-11-16 23:52:07,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-16 23:52:07,417 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:52:07,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:52:07,417 INFO L85 PathProgramCache]: Analyzing trace with hash 360678227, now seen corresponding path program 1 times [2021-11-16 23:52:07,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:52:07,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860669155] [2021-11-16 23:52:07,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:52:07,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:52:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:07,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-16 23:52:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:07,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-16 23:52:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:07,700 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-16 23:52:07,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-16 23:52:07,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860669155] [2021-11-16 23:52:07,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860669155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-16 23:52:07,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:52:07,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-16 23:52:07,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694218903] [2021-11-16 23:52:07,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-16 23:52:07,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-16 23:52:07,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-16 23:52:07,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-16 23:52:07,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-16 23:52:07,704 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) [2021-11-16 23:52:09,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:52:10,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:52:10,299 INFO L93 Difference]: Finished difference Result 1171 states and 1609 transitions. [2021-11-16 23:52:10,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-16 23:52:10,300 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 [2021-11-16 23:52:10,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:52:10,302 INFO L225 Difference]: With dead ends: 1171 [2021-11-16 23:52:10,303 INFO L226 Difference]: Without dead ends: 593 [2021-11-16 23:52:10,304 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 [2021-11-16 23:52:10,304 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 140 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-16 23:52:10,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 1164 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 311 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-16 23:52:10,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-11-16 23:52:10,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 525. [2021-11-16 23:52:10,324 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) [2021-11-16 23:52:10,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 732 transitions. [2021-11-16 23:52:10,327 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 732 transitions. Word has length 53 [2021-11-16 23:52:10,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:52:10,327 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 732 transitions. [2021-11-16 23:52:10,327 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) [2021-11-16 23:52:10,327 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 732 transitions. [2021-11-16 23:52:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-16 23:52:10,329 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:52:10,329 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] [2021-11-16 23:52:10,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-16 23:52:10,329 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:52:10,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:52:10,330 INFO L85 PathProgramCache]: Analyzing trace with hash 763976356, now seen corresponding path program 1 times [2021-11-16 23:52:10,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-16 23:52:10,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681150102] [2021-11-16 23:52:10,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:52:10,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-16 23:52:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-16 23:52:10,540 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-16 23:52:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-16 23:52:10,874 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-16 23:52:10,874 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-16 23:52:10,875 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-16 23:52:10,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-16 23:52:10,879 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:52:10,881 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-16 23:52:11,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:52:11 BoogieIcfgContainer [2021-11-16 23:52:11,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-16 23:52:11,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-16 23:52:11,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-16 23:52:11,036 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-16 23:52:11,037 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:51:51" (3/4) ... [2021-11-16 23:52:11,039 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-16 23:52:11,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-16 23:52:11,040 INFO L158 Benchmark]: Toolchain (without parser) took 24665.15ms. Allocated memory was 104.9MB in the beginning and 268.4MB in the end (delta: 163.6MB). Free memory was 68.3MB in the beginning and 96.4MB in the end (delta: -28.1MB). Peak memory consumption was 134.9MB. Max. memory is 16.1GB. [2021-11-16 23:52:11,040 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-16 23:52:11,041 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1708.10ms. Allocated memory was 104.9MB in the beginning and 190.8MB in the end (delta: 86.0MB). Free memory was 68.1MB in the beginning and 109.4MB in the end (delta: -41.3MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2021-11-16 23:52:11,041 INFO L158 Benchmark]: Boogie Procedure Inliner took 125.66ms. Allocated memory is still 190.8MB. Free memory was 109.4MB in the beginning and 99.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-16 23:52:11,041 INFO L158 Benchmark]: Boogie Preprocessor took 117.33ms. Allocated memory is still 190.8MB. Free memory was 99.9MB in the beginning and 91.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-16 23:52:11,042 INFO L158 Benchmark]: RCFGBuilder took 2962.17ms. Allocated memory is still 190.8MB. Free memory was 91.5MB in the beginning and 131.4MB in the end (delta: -39.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-16 23:52:11,042 INFO L158 Benchmark]: TraceAbstraction took 19741.05ms. Allocated memory was 190.8MB in the beginning and 268.4MB in the end (delta: 77.6MB). Free memory was 130.3MB in the beginning and 96.4MB in the end (delta: 33.9MB). Peak memory consumption was 111.5MB. Max. memory is 16.1GB. [2021-11-16 23:52:11,043 INFO L158 Benchmark]: Witness Printer took 3.58ms. Allocated memory is still 268.4MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-16 23:52:11,044 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1708.10ms. Allocated memory was 104.9MB in the beginning and 190.8MB in the end (delta: 86.0MB). Free memory was 68.1MB in the beginning and 109.4MB in the end (delta: -41.3MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 125.66ms. Allocated memory is still 190.8MB. Free memory was 109.4MB in the beginning and 99.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 117.33ms. Allocated memory is still 190.8MB. Free memory was 99.9MB in the beginning and 91.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2962.17ms. Allocated memory is still 190.8MB. Free memory was 91.5MB in the beginning and 131.4MB in the end (delta: -39.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 19741.05ms. Allocated memory was 190.8MB in the beginning and 268.4MB in the end (delta: 77.6MB). Free memory was 130.3MB in the beginning and 96.4MB in the end (delta: 33.9MB). Peak memory consumption was 111.5MB. Max. memory is 16.1GB. * Witness Printer took 3.58ms. Allocated memory is still 268.4MB. Free memory is still 96.4MB. 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={203:0}, dev_attr_protocols_group0={0:0}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [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={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [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={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: VAL [available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp=1, wq_load={197:0}] [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={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp=1, tmp___1=1, wq_load={197:0}] [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={204:0}, available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc=0, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp=0, wq_load={197:0}] [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={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [L3319] FCALL _raw_spin_lock(& lock->ldv_5961.rlock) [L3536] RET spin_lock(& rc_map_lock) VAL [available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, map={189:0}, map={189:0}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [L3537] CALL list_add_tail(& map->list, & rc_map_list) VAL [available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [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={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, map={189:0}, map={189:0}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [L3538] CALL spin_unlock(& rc_map_lock) VAL [available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [L3326] FCALL _raw_spin_unlock(& lock->ldv_5961.rlock) [L3538] RET spin_unlock(& rc_map_lock) VAL [available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, map={189:0}, map={189:0}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [L3539] return (0); VAL [\result=0, available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, map={189:0}, map={189:0}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [L4872] RET rc_map_register(& empty_map) [L4873] return (0); [L4873] return (0); VAL [\result=0, available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc=0, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp=0, wq_load={197:0}] [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={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp=1, tmp___1=1, wq_load={197:0}] [L4983] COND FALSE !(ldv_retval_0 != 0) VAL [available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp=1, tmp___1=1, wq_load={197:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: [L4998] case 2: [L5016] case 3: VAL [available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp=3, tmp___1=1, wq_load={197:0}] [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={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=1, wq_load={197:0}] [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:-1}, available_protocols=0, buf={0:0}, buf={0:0}, descriptor={205:0}, dev={0:-1}, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, device={0:-1}, device={0:-1}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, mattr={0:0}, mattr={0:0}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp={0:0}, wq_load={197:0}] [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={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, lock={0:1226}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [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={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, lock={0:1226}, lock={0:1226}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [L6387] ldv_mutex_lock_of_rc_dev = 2 VAL [\old(ldv_mutex_lock_of_rc_dev)=1, available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, lock={0:1226}, lock={0:1226}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [L5099] RET ldv_mutex_lock_lock_of_rc_dev(ldv_func_arg1) VAL [available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, ldv_func_arg1={0:1226}, ldv_func_arg1={0:1226}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [L5100] FCALL mutex_lock(ldv_func_arg1) VAL [available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, ldv_func_arg1={0:1226}, ldv_func_arg1={0:1226}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [L4272] RET ldv_mutex_lock_6(& dev->lock) [L4273] EXPR dev->driver_type VAL [__mptr={0:-1}, available_protocols=0, buf={0:0}, buf={0:0}, descriptor={205:0}, dev={0:-1}, dev->driver_type=4294967297, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, device={0:-1}, device={0:-1}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, mattr={0:0}, mattr={0:0}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp={0:0}, wq_load={197:0}] [L4273] COND FALSE !((unsigned int )dev->driver_type == 0U) [L4277] EXPR dev->raw VAL [__mptr={0:-1}, available_protocols=0, buf={0:0}, buf={0:0}, descriptor={205:0}, dev={0:-1}, dev->raw={0:0}, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, device={0:-1}, device={0:-1}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, mattr={0:0}, mattr={0:0}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp={0:0}, wq_load={197:0}] [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:-1}, available_protocols=0, buf={0:0}, buf={0:0}, dev={0:-1}, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, device={0:-1}, device={0:-1}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, mattr={0:0}, mattr={0:0}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp={0:0}, wq_load={197:0}] [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={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=1, wq_load={197:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: [L4998] case 2: [L5016] case 3: VAL [available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=1, wq_load={197:0}] [L5017] COND TRUE ldv_state_variable_2 != 0 [L5018] tmp___3 = __VERIFIER_nondet_int() [L5020] case 0: VAL [available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=0, wq_load={197:0}] [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:-1}, available_protocols=0, count=0, data={0:-2}, data={211:0}, descriptor={187:0}, descriptor___0={209:0}, descriptor___1={207:0}, descriptor___2={208:0}, descriptor___3={210:0}, dev={0:-1}, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, device={0:-1}, device={0:-1}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, len=18446744073709551613, mattr={0:0}, mattr={0:0}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, type={206:0}, wq_load={197:0}] [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={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, lock={0:1226}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [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={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, lock={0:1226}, lock={0:1226}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [L6385] CALL ldv_error() VAL [\old(ldv_mutex_lock_of_rc_dev)=2, available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] [L6023] reach_error() VAL [\old(ldv_mutex_lock_of_rc_dev)=2, available_protocols=0, dev_attr_protocols={203:0}, dev_attr_protocols_group0={0:-1}, dev_attr_protocols_group1={0:0}, empty={191:0}, empty_map={189:0}, ir_input_class={190:0}, ir_raw_client_list={202:0}, ir_raw_handler_list={188:0}, ir_raw_handler_lock={193:0}, 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={0:0}, ldvarg4=18446744073709551613, ldvarg5={0:-2}, proto_names={196:0}, rc_core_debug=0, rc_dev_attr_groups={199:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={198:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={194:0}, rc_map_lock={201:0}, ref_cnt=0, wq_load={197:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 317 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.5s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 2760 SdHoareTripleChecker+Valid, 16.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2724 mSDsluCounter, 6465 SdHoareTripleChecker+Invalid, 15.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2622 mSDsCounter, 245 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 727 IncrementalHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 245 mSolverCounterUnsat, 3843 mSDtfsCounter, 727 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 37 SyntacticMatches, 0 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: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 87 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.7s 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 [2021-11-16 23:52:11,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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 0.2.1-dev-0f8a17c [2021-11-16 23:52:13,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-16 23:52:13,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-16 23:52:13,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-16 23:52:13,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-16 23:52:13,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-16 23:52:13,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-16 23:52:13,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-16 23:52:13,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-16 23:52:13,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-16 23:52:13,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-16 23:52:13,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-16 23:52:13,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-16 23:52:13,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-16 23:52:13,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-16 23:52:13,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-16 23:52:13,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-16 23:52:13,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-16 23:52:13,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-16 23:52:13,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-16 23:52:13,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-16 23:52:13,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-16 23:52:13,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-16 23:52:13,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-16 23:52:13,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-16 23:52:13,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-16 23:52:13,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-16 23:52:13,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-16 23:52:13,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-16 23:52:13,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-16 23:52:13,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-16 23:52:13,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-16 23:52:13,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-16 23:52:13,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-16 23:52:13,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-16 23:52:13,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-16 23:52:13,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-16 23:52:13,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-16 23:52:13,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-16 23:52:13,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-16 23:52:13,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-16 23:52:13,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-16 23:52:13,170 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-16 23:52:13,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-16 23:52:13,172 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-16 23:52:13,172 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-16 23:52:13,173 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-16 23:52:13,173 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-16 23:52:13,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-16 23:52:13,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-16 23:52:13,175 INFO L138 SettingsManager]: * Use SBE=true [2021-11-16 23:52:13,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-16 23:52:13,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-16 23:52:13,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-16 23:52:13,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-16 23:52:13,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-16 23:52:13,177 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-16 23:52:13,177 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-16 23:52:13,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-16 23:52:13,177 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-16 23:52:13,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-16 23:52:13,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-16 23:52:13,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-16 23:52:13,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-16 23:52:13,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 23:52:13,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-16 23:52:13,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-16 23:52:13,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-16 23:52:13,179 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-16 23:52:13,179 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-16 23:52:13,180 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-16 23:52:13,180 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-16 23:52:13,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-16 23:52:13,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-16 23:52:13,181 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-16 23:52:13,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 [2021-11-16 23:52:13,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-16 23:52:13,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-16 23:52:13,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-16 23:52:13,514 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-16 23:52:13,519 INFO L275 PluginConnector]: CDTParser initialized [2021-11-16 23:52:13,521 INFO L432 ainManager$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 [2021-11-16 23:52:13,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c19fab39/d3da5a9aac624248bab879326a7ad16e/FLAGd20dcfafe [2021-11-16 23:52:14,308 INFO L306 CDTParser]: Found 1 translation units. [2021-11-16 23:52:14,309 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 [2021-11-16 23:52:14,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c19fab39/d3da5a9aac624248bab879326a7ad16e/FLAGd20dcfafe [2021-11-16 23:52:14,436 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c19fab39/d3da5a9aac624248bab879326a7ad16e [2021-11-16 23:52:14,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-16 23:52:14,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-16 23:52:14,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-16 23:52:14,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-16 23:52:14,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-16 23:52:14,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:52:14" (1/1) ... [2021-11-16 23:52:14,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7875ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:14, skipping insertion in model container [2021-11-16 23:52:14,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:52:14" (1/1) ... [2021-11-16 23:52:14,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-16 23:52:14,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-16 23:52:15,747 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] [2021-11-16 23:52:15,847 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-16 23:52:15,854 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 23:52:15,897 INFO L203 MainTranslator]: Completed pre-run [2021-11-16 23:52:16,199 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] [2021-11-16 23:52:16,215 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-16 23:52:16,217 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-16 23:52:16,335 INFO L208 MainTranslator]: Completed translation [2021-11-16 23:52:16,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:16 WrapperNode [2021-11-16 23:52:16,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-16 23:52:16,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-16 23:52:16,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-16 23:52:16,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-16 23:52:16,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:16" (1/1) ... [2021-11-16 23:52:16,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:16" (1/1) ... [2021-11-16 23:52:16,505 INFO L137 Inliner]: procedures = 274, calls = 1650, calls flagged for inlining = 99, calls inlined = 32, statements flattened = 1316 [2021-11-16 23:52:16,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-16 23:52:16,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-16 23:52:16,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-16 23:52:16,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-16 23:52:16,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:16" (1/1) ... [2021-11-16 23:52:16,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:16" (1/1) ... [2021-11-16 23:52:16,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:16" (1/1) ... [2021-11-16 23:52:16,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:16" (1/1) ... [2021-11-16 23:52:16,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:16" (1/1) ... [2021-11-16 23:52:16,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:16" (1/1) ... [2021-11-16 23:52:16,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:16" (1/1) ... [2021-11-16 23:52:16,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-16 23:52:16,621 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-16 23:52:16,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-16 23:52:16,621 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-16 23:52:16,622 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:16" (1/1) ... [2021-11-16 23:52:16,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-16 23:52:16,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-16 23:52:16,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-16 23:52:16,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-16 23:52:16,686 INFO L130 BoogieDeclarations]: Found specification of procedure ir_lookup_by_scancode [2021-11-16 23:52:16,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_lookup_by_scancode [2021-11-16 23:52:16,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-16 23:52:16,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-16 23:52:16,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-16 23:52:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-16 23:52:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-16 23:52:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-16 23:52:16,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ir_raw_handler_lock [2021-11-16 23:52:16,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ir_raw_handler_lock [2021-11-16 23:52:16,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-16 23:52:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-16 23:52:16,689 INFO L130 BoogieDeclarations]: Found specification of procedure rc_dev_uevent [2021-11-16 23:52:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_dev_uevent [2021-11-16 23:52:16,689 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-16 23:52:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-16 23:52:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-16 23:52:16,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-16 23:52:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-16 23:52:16,690 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-16 23:52:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-16 23:52:16,690 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-16 23:52:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-16 23:52:16,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-16 23:52:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-16 23:52:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-16 23:52:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-16 23:52:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-16 23:52:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-16 23:52:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-16 23:52:16,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-16 23:52:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2021-11-16 23:52:16,692 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2021-11-16 23:52:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-16 23:52:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-16 23:52:16,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-16 23:52:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-16 23:52:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-16 23:52:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-16 23:52:16,693 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-16 23:52:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-16 23:52:16,693 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-16 23:52:16,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_rc_dev [2021-11-16 23:52:16,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_rc_dev [2021-11-16 23:52:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-16 23:52:16,694 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-16 23:52:16,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_rc_dev [2021-11-16 23:52:16,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_rc_dev [2021-11-16 23:52:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure rc_dev_release [2021-11-16 23:52:16,695 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_dev_release [2021-11-16 23:52:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-16 23:52:16,695 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-16 23:52:16,695 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-16 23:52:16,696 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-16 23:52:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ir_raw_handler_lock [2021-11-16 23:52:16,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ir_raw_handler_lock [2021-11-16 23:52:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-16 23:52:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-16 23:52:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-16 23:52:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-16 23:52:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-16 23:52:16,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-16 23:52:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-16 23:52:16,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-16 23:52:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-16 23:52:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-16 23:52:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-16 23:52:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-16 23:52:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-16 23:52:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-16 23:52:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure input_scancode_to_scalar [2021-11-16 23:52:16,700 INFO L138 BoogieDeclarations]: Found implementation of procedure input_scancode_to_scalar [2021-11-16 23:52:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-16 23:52:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-16 23:52:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-16 23:52:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-16 23:52:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-16 23:52:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-16 23:52:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-16 23:52:17,062 INFO L236 CfgBuilder]: Building ICFG [2021-11-16 23:52:17,064 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-16 23:52:21,899 INFO L277 CfgBuilder]: Performing block encoding [2021-11-16 23:52:21,911 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-16 23:52:21,912 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-16 23:52:21,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:52:21 BoogieIcfgContainer [2021-11-16 23:52:21,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-16 23:52:21,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-16 23:52:21,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-16 23:52:21,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-16 23:52:21,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:52:14" (1/3) ... [2021-11-16 23:52:21,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202edd8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:52:21, skipping insertion in model container [2021-11-16 23:52:21,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:16" (2/3) ... [2021-11-16 23:52:21,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@202edd8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:52:21, skipping insertion in model container [2021-11-16 23:52:21,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:52:21" (3/3) ... [2021-11-16 23:52:21,925 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-11-16 23:52:21,930 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-16 23:52:21,930 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-16 23:52:21,976 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-16 23:52:21,985 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-16 23:52:21,985 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-16 23:52:22,005 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) [2021-11-16 23:52:22,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-16 23:52:22,013 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:52:22,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:52:22,014 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:52:22,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:52:22,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1403411196, now seen corresponding path program 1 times [2021-11-16 23:52:22,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-16 23:52:22,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146376261] [2021-11-16 23:52:22,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:52:22,035 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-16 23:52:22,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-16 23:52:22,038 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) [2021-11-16 23:52:22,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-16 23:52:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:22,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-16 23:52:22,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 23:52:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:52:22,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 23:52:22,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:52:22,854 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-16 23:52:22,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146376261] [2021-11-16 23:52:22,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [146376261] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-16 23:52:22,855 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:52:22,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-16 23:52:22,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769313575] [2021-11-16 23:52:22,858 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-16 23:52:22,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:52:22,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-16 23:52:22,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:52:22,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:22,890 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) [2021-11-16 23:52:23,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:52:23,139 INFO L93 Difference]: Finished difference Result 736 states and 1044 transitions. [2021-11-16 23:52:23,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:52:23,142 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 [2021-11-16 23:52:23,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:52:23,153 INFO L225 Difference]: With dead ends: 736 [2021-11-16 23:52:23,153 INFO L226 Difference]: Without dead ends: 414 [2021-11-16 23:52:23,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:23,161 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, 0.2s IncrementalHoareTripleChecker+Time [2021-11-16 23:52:23,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 879 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-16 23:52:23,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-11-16 23:52:23,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 399. [2021-11-16 23:52:23,221 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) [2021-11-16 23:52:23,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 551 transitions. [2021-11-16 23:52:23,226 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 551 transitions. Word has length 17 [2021-11-16 23:52:23,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:52:23,226 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 551 transitions. [2021-11-16 23:52:23,227 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) [2021-11-16 23:52:23,227 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 551 transitions. [2021-11-16 23:52:23,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-16 23:52:23,229 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:52:23,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:52:23,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-16 23:52:23,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-16 23:52:23,447 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:52:23,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:52:23,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1255176370, now seen corresponding path program 1 times [2021-11-16 23:52:23,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-16 23:52:23,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759377036] [2021-11-16 23:52:23,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:52:23,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-16 23:52:23,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-16 23:52:23,455 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) [2021-11-16 23:52:23,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-16 23:52:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:24,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-16 23:52:24,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 23:52:24,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:52:24,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 23:52:24,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:52:24,125 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-16 23:52:24,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759377036] [2021-11-16 23:52:24,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759377036] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-16 23:52:24,126 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:52:24,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-16 23:52:24,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539928438] [2021-11-16 23:52:24,127 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-16 23:52:24,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-16 23:52:24,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-16 23:52:24,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-16 23:52:24,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-16 23:52:24,130 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) [2021-11-16 23:52:26,224 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:52:26,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:52:26,347 INFO L93 Difference]: Finished difference Result 826 states and 1142 transitions. [2021-11-16 23:52:26,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-16 23:52:26,348 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 [2021-11-16 23:52:26,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:52:26,353 INFO L225 Difference]: With dead ends: 826 [2021-11-16 23:52:26,353 INFO L226 Difference]: Without dead ends: 430 [2021-11-16 23:52:26,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-16 23:52:26,359 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 41 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-16 23:52:26,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 1275 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-16 23:52:26,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-11-16 23:52:26,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 373. [2021-11-16 23:52:26,384 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) [2021-11-16 23:52:26,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 520 transitions. [2021-11-16 23:52:26,386 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 520 transitions. Word has length 19 [2021-11-16 23:52:26,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:52:26,387 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 520 transitions. [2021-11-16 23:52:26,387 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) [2021-11-16 23:52:26,387 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 520 transitions. [2021-11-16 23:52:26,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-16 23:52:26,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:52:26,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:52:26,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-16 23:52:26,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-16 23:52:26,609 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:52:26,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:52:26,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1312434672, now seen corresponding path program 1 times [2021-11-16 23:52:26,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-16 23:52:26,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821204452] [2021-11-16 23:52:26,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:52:26,611 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-16 23:52:26,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-16 23:52:26,613 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) [2021-11-16 23:52:26,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-16 23:52:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:27,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-16 23:52:27,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 23:52:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:52:27,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 23:52:27,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:52:27,368 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-16 23:52:27,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821204452] [2021-11-16 23:52:27,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821204452] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-16 23:52:27,368 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:52:27,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-16 23:52:27,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889949079] [2021-11-16 23:52:27,369 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-16 23:52:27,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:52:27,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-16 23:52:27,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:52:27,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:27,370 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) [2021-11-16 23:52:29,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:52:29,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:52:29,497 INFO L93 Difference]: Finished difference Result 375 states and 521 transitions. [2021-11-16 23:52:29,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:52:29,497 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 [2021-11-16 23:52:29,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:52:29,500 INFO L225 Difference]: With dead ends: 375 [2021-11-16 23:52:29,500 INFO L226 Difference]: Without dead ends: 372 [2021-11-16 23:52:29,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:29,502 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 408 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:52:29,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 423 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-16 23:52:29,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-11-16 23:52:29,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2021-11-16 23:52:29,521 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) [2021-11-16 23:52:29,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 518 transitions. [2021-11-16 23:52:29,524 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 518 transitions. Word has length 19 [2021-11-16 23:52:29,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:52:29,524 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 518 transitions. [2021-11-16 23:52:29,524 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) [2021-11-16 23:52:29,524 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 518 transitions. [2021-11-16 23:52:29,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-16 23:52:29,526 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:52:29,526 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] [2021-11-16 23:52:29,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-16 23:52:29,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-16 23:52:29,746 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:52:29,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:52:29,747 INFO L85 PathProgramCache]: Analyzing trace with hash 2030613114, now seen corresponding path program 1 times [2021-11-16 23:52:29,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-16 23:52:29,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671362043] [2021-11-16 23:52:29,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:52:29,748 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-16 23:52:29,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-16 23:52:29,749 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) [2021-11-16 23:52:29,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-16 23:52:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:30,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-16 23:52:30,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 23:52:30,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:52:30,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 23:52:30,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:52:30,423 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-16 23:52:30,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671362043] [2021-11-16 23:52:30,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671362043] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-16 23:52:30,424 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:52:30,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-16 23:52:30,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326478750] [2021-11-16 23:52:30,424 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-16 23:52:30,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:52:30,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-16 23:52:30,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:52:30,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:30,426 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) [2021-11-16 23:52:32,492 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:52:32,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:52:32,554 INFO L93 Difference]: Finished difference Result 379 states and 522 transitions. [2021-11-16 23:52:32,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:52:32,557 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 [2021-11-16 23:52:32,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:52:32,561 INFO L225 Difference]: With dead ends: 379 [2021-11-16 23:52:32,562 INFO L226 Difference]: Without dead ends: 375 [2021-11-16 23:52:32,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:32,567 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 391 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:52:32,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 429 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-16 23:52:32,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-11-16 23:52:32,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2021-11-16 23:52:32,597 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) [2021-11-16 23:52:32,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 516 transitions. [2021-11-16 23:52:32,602 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 516 transitions. Word has length 20 [2021-11-16 23:52:32,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:52:32,602 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 516 transitions. [2021-11-16 23:52:32,602 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) [2021-11-16 23:52:32,603 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 516 transitions. [2021-11-16 23:52:32,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-16 23:52:32,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:52:32,607 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] [2021-11-16 23:52:32,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-16 23:52:32,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-16 23:52:32,826 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:52:32,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:52:32,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1475654093, now seen corresponding path program 1 times [2021-11-16 23:52:32,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-16 23:52:32,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343729760] [2021-11-16 23:52:32,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:52:32,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-16 23:52:32,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-16 23:52:32,829 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) [2021-11-16 23:52:32,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-16 23:52:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:33,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-16 23:52:33,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 23:52:33,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:52:33,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 23:52:33,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:52:33,545 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-16 23:52:33,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343729760] [2021-11-16 23:52:33,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343729760] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-16 23:52:33,545 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:52:33,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-16 23:52:33,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962524796] [2021-11-16 23:52:33,545 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-16 23:52:33,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:52:33,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-16 23:52:33,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:52:33,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:33,546 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) [2021-11-16 23:52:35,609 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:52:35,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:52:35,655 INFO L93 Difference]: Finished difference Result 375 states and 517 transitions. [2021-11-16 23:52:35,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:52:35,655 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 [2021-11-16 23:52:35,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:52:35,658 INFO L225 Difference]: With dead ends: 375 [2021-11-16 23:52:35,658 INFO L226 Difference]: Without dead ends: 372 [2021-11-16 23:52:35,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:35,660 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 400 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:52:35,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 417 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-16 23:52:35,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-11-16 23:52:35,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2021-11-16 23:52:35,699 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) [2021-11-16 23:52:35,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 514 transitions. [2021-11-16 23:52:35,702 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 514 transitions. Word has length 21 [2021-11-16 23:52:35,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:52:35,702 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 514 transitions. [2021-11-16 23:52:35,702 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) [2021-11-16 23:52:35,702 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 514 transitions. [2021-11-16 23:52:35,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-16 23:52:35,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:52:35,703 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] [2021-11-16 23:52:35,724 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-16 23:52:35,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-16 23:52:35,920 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:52:35,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:52:35,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1499217053, now seen corresponding path program 1 times [2021-11-16 23:52:35,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-16 23:52:35,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967239429] [2021-11-16 23:52:35,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:52:35,922 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-16 23:52:35,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-16 23:52:35,923 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) [2021-11-16 23:52:35,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-16 23:52:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:36,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-16 23:52:36,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 23:52:36,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:52:36,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 23:52:36,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:52:36,551 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-16 23:52:36,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967239429] [2021-11-16 23:52:36,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967239429] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-16 23:52:36,551 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:52:36,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-16 23:52:36,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152941927] [2021-11-16 23:52:36,552 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-16 23:52:36,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:52:36,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-16 23:52:36,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:52:36,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:36,553 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) [2021-11-16 23:52:38,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:52:38,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:52:38,700 INFO L93 Difference]: Finished difference Result 552 states and 772 transitions. [2021-11-16 23:52:38,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:52:38,701 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 [2021-11-16 23:52:38,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:52:38,705 INFO L225 Difference]: With dead ends: 552 [2021-11-16 23:52:38,705 INFO L226 Difference]: Without dead ends: 548 [2021-11-16 23:52:38,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:38,707 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 152 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:52:38,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 826 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-16 23:52:38,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2021-11-16 23:52:38,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 546. [2021-11-16 23:52:38,740 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) [2021-11-16 23:52:38,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 766 transitions. [2021-11-16 23:52:38,745 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 766 transitions. Word has length 22 [2021-11-16 23:52:38,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:52:38,745 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 766 transitions. [2021-11-16 23:52:38,745 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) [2021-11-16 23:52:38,745 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 766 transitions. [2021-11-16 23:52:38,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-16 23:52:38,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:52:38,747 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] [2021-11-16 23:52:38,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-16 23:52:38,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-16 23:52:38,966 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:52:38,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:52:38,966 INFO L85 PathProgramCache]: Analyzing trace with hash -769053066, now seen corresponding path program 1 times [2021-11-16 23:52:38,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-16 23:52:38,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254740456] [2021-11-16 23:52:38,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:52:38,967 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-16 23:52:38,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-16 23:52:38,968 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) [2021-11-16 23:52:38,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-16 23:52:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:39,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-16 23:52:39,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 23:52:39,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:52:39,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 23:52:39,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-16 23:52:39,763 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-16 23:52:39,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254740456] [2021-11-16 23:52:39,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254740456] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-16 23:52:39,763 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:52:39,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-16 23:52:39,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30912503] [2021-11-16 23:52:39,763 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-16 23:52:39,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:52:39,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-16 23:52:39,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:52:39,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:39,764 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) [2021-11-16 23:52:41,842 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:52:41,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:52:41,870 INFO L93 Difference]: Finished difference Result 548 states and 767 transitions. [2021-11-16 23:52:41,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:52:41,889 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 [2021-11-16 23:52:41,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:52:41,893 INFO L225 Difference]: With dead ends: 548 [2021-11-16 23:52:41,893 INFO L226 Difference]: Without dead ends: 527 [2021-11-16 23:52:41,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:41,895 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 396 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:52:41,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-16 23:52:41,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2021-11-16 23:52:41,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2021-11-16 23:52:41,920 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) [2021-11-16 23:52:41,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 739 transitions. [2021-11-16 23:52:41,923 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 739 transitions. Word has length 23 [2021-11-16 23:52:41,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:52:41,923 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 739 transitions. [2021-11-16 23:52:41,923 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) [2021-11-16 23:52:41,924 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 739 transitions. [2021-11-16 23:52:41,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-16 23:52:41,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:52:41,926 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] [2021-11-16 23:52:41,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-16 23:52:42,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-16 23:52:42,140 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:52:42,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:52:42,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1664175646, now seen corresponding path program 1 times [2021-11-16 23:52:42,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-16 23:52:42,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180899026] [2021-11-16 23:52:42,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:52:42,142 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-16 23:52:42,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-16 23:52:42,142 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) [2021-11-16 23:52:42,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-16 23:52:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:42,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-16 23:52:42,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 23:52:42,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-16 23:52:42,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 23:52:43,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-16 23:52:43,012 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-16 23:52:43,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180899026] [2021-11-16 23:52:43,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180899026] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-16 23:52:43,012 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:52:43,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-16 23:52:43,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646993281] [2021-11-16 23:52:43,013 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-16 23:52:43,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:52:43,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-16 23:52:43,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:52:43,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:43,014 INFO L87 Difference]: Start difference. First operand 527 states and 739 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-16 23:52:45,112 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:52:45,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:52:45,181 INFO L93 Difference]: Finished difference Result 1050 states and 1474 transitions. [2021-11-16 23:52:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:52:45,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62 [2021-11-16 23:52:45,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:52:45,185 INFO L225 Difference]: With dead ends: 1050 [2021-11-16 23:52:45,185 INFO L226 Difference]: Without dead ends: 526 [2021-11-16 23:52:45,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:45,187 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 384 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:52:45,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 690 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-16 23:52:45,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2021-11-16 23:52:45,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2021-11-16 23:52:45,210 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) [2021-11-16 23:52:45,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 734 transitions. [2021-11-16 23:52:45,213 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 734 transitions. Word has length 62 [2021-11-16 23:52:45,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:52:45,213 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 734 transitions. [2021-11-16 23:52:45,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-16 23:52:45,214 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 734 transitions. [2021-11-16 23:52:45,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-16 23:52:45,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:52:45,215 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] [2021-11-16 23:52:45,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-16 23:52:45,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-16 23:52:45,438 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:52:45,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:52:45,438 INFO L85 PathProgramCache]: Analyzing trace with hash -656103517, now seen corresponding path program 1 times [2021-11-16 23:52:45,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-16 23:52:45,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075945472] [2021-11-16 23:52:45,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:52:45,439 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-16 23:52:45,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-16 23:52:45,440 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) [2021-11-16 23:52:45,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-16 23:52:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-16 23:52:45,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-16 23:52:45,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-16 23:52:46,106 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-16 23:52:46,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-16 23:52:46,271 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-16 23:52:46,272 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-16 23:52:46,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075945472] [2021-11-16 23:52:46,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075945472] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-16 23:52:46,272 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-16 23:52:46,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-16 23:52:46,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518593792] [2021-11-16 23:52:46,272 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-16 23:52:46,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-16 23:52:46,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-16 23:52:46,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-16 23:52:46,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:46,274 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, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-16 23:52:48,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-16 23:52:48,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-16 23:52:48,426 INFO L93 Difference]: Finished difference Result 528 states and 735 transitions. [2021-11-16 23:52:48,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-16 23:52:48,426 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, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2021-11-16 23:52:48,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-16 23:52:48,429 INFO L225 Difference]: With dead ends: 528 [2021-11-16 23:52:48,429 INFO L226 Difference]: Without dead ends: 525 [2021-11-16 23:52:48,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-16 23:52:48,431 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-16 23:52:48,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 809 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-16 23:52:48,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2021-11-16 23:52:48,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2021-11-16 23:52:48,453 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) [2021-11-16 23:52:48,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 732 transitions. [2021-11-16 23:52:48,456 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 732 transitions. Word has length 71 [2021-11-16 23:52:48,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-16 23:52:48,456 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 732 transitions. [2021-11-16 23:52:48,457 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, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-16 23:52:48,457 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 732 transitions. [2021-11-16 23:52:48,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-16 23:52:48,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-16 23:52:48,458 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] [2021-11-16 23:52:48,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-16 23:52:48,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-16 23:52:48,679 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-16 23:52:48,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-16 23:52:48,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1176347224, now seen corresponding path program 1 times [2021-11-16 23:52:48,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-16 23:52:48,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832150715] [2021-11-16 23:52:48,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-16 23:52:48,681 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-16 23:52:48,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-16 23:52:48,682 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) [2021-11-16 23:52:48,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-16 23:53:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-16 23:53:13,172 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-16 23:53:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-16 23:53:45,100 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-16 23:53:45,101 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-16 23:53:45,102 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-16 23:53:45,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-16 23:53:45,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-16 23:53:45,326 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-16 23:53:45,328 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-16 23:53:45,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:53:45 BoogieIcfgContainer [2021-11-16 23:53:45,485 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-16 23:53:45,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-16 23:53:45,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-16 23:53:45,486 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-16 23:53:45,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:52:21" (3/4) ... [2021-11-16 23:53:45,489 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-16 23:53:45,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-16 23:53:45,490 INFO L158 Benchmark]: Toolchain (without parser) took 91049.92ms. Allocated memory was 60.8MB in the beginning and 199.2MB in the end (delta: 138.4MB). Free memory was 38.8MB in the beginning and 114.9MB in the end (delta: -76.1MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2021-11-16 23:53:45,490 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 31.0MB in the beginning and 30.9MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-16 23:53:45,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1894.07ms. Allocated memory was 60.8MB in the beginning and 119.5MB in the end (delta: 58.7MB). Free memory was 38.7MB in the beginning and 76.2MB in the end (delta: -37.5MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2021-11-16 23:53:45,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 168.81ms. Allocated memory is still 119.5MB. Free memory was 76.2MB in the beginning and 66.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-16 23:53:45,491 INFO L158 Benchmark]: Boogie Preprocessor took 113.22ms. Allocated memory is still 119.5MB. Free memory was 66.6MB in the beginning and 57.2MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-16 23:53:45,491 INFO L158 Benchmark]: RCFGBuilder took 5295.60ms. Allocated memory was 119.5MB in the beginning and 165.7MB in the end (delta: 46.1MB). Free memory was 57.2MB in the beginning and 114.2MB in the end (delta: -57.0MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2021-11-16 23:53:45,491 INFO L158 Benchmark]: TraceAbstraction took 83566.67ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 114.2MB in the beginning and 116.0MB in the end (delta: -1.7MB). Peak memory consumption was 91.0MB. Max. memory is 16.1GB. [2021-11-16 23:53:45,492 INFO L158 Benchmark]: Witness Printer took 3.34ms. Allocated memory is still 199.2MB. Free memory was 116.0MB in the beginning and 114.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-16 23:53:45,494 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 31.0MB in the beginning and 30.9MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1894.07ms. Allocated memory was 60.8MB in the beginning and 119.5MB in the end (delta: 58.7MB). Free memory was 38.7MB in the beginning and 76.2MB in the end (delta: -37.5MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 168.81ms. Allocated memory is still 119.5MB. Free memory was 76.2MB in the beginning and 66.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 113.22ms. Allocated memory is still 119.5MB. Free memory was 66.6MB in the beginning and 57.2MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 5295.60ms. Allocated memory was 119.5MB in the beginning and 165.7MB in the end (delta: 46.1MB). Free memory was 57.2MB in the beginning and 114.2MB in the end (delta: -57.0MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. * TraceAbstraction took 83566.67ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 114.2MB in the beginning and 116.0MB in the end (delta: -1.7MB). Peak memory consumption was 91.0MB. Max. memory is 16.1GB. * Witness Printer took 3.34ms. Allocated memory is still 199.2MB. Free memory was 116.0MB in the beginning and 114.9MB in the end (delta: 1.0MB). 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={2305843009213693982:0}, dev_attr_protocols_group0={0:0}, dev_attr_protocols_group1={0:0}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0={0:0}, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [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={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [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={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: VAL [available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp=1, wq_load={72057869184271457:0}] [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={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp=1, tmp___1=1, wq_load={72057869184271457:0}] [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={188:0}, available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, proto_names={274877908107:0}, rc=0, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp=0, wq_load={72057869184271457:0}] [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={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [L3319] FCALL _raw_spin_lock(& lock->ldv_5961.rlock) [L3536] RET spin_lock(& rc_map_lock) VAL [available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, map={274877907016:0}, map={274877907016:0}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [L3537] CALL list_add_tail(& map->list, & rc_map_list) VAL [available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [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={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, map={274877907016:0}, map={274877907016:0}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [L3538] CALL spin_unlock(& rc_map_lock) VAL [available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [L3326] FCALL _raw_spin_unlock(& lock->ldv_5961.rlock) [L3538] RET spin_unlock(& rc_map_lock) VAL [available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, map={274877907016:0}, map={274877907016:0}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [L3539] return (0); VAL [\result=0, available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, map={274877907016:0}, map={274877907016:0}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [L4872] RET rc_map_register(& empty_map) [L4873] return (0); [L4873] return (0); VAL [\result=0, available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, proto_names={274877908107:0}, rc=0, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp=0, wq_load={72057869184271457:0}] [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={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp=1, tmp___1=1, wq_load={72057869184271457:0}] [L4983] COND FALSE !(ldv_retval_0 != 0) VAL [available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp=1, tmp___1=1, wq_load={72057869184271457:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: [L4998] case 2: [L5016] case 3: VAL [available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp=3, tmp___1=1, wq_load={72057869184271457:0}] [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={2305843009213693982:0}, dev_attr_protocols_group0=null, dev_attr_protocols_group1=null, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3=null, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=1, wq_load={72057869184271457:0}] [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:-8646840777026026944}, available_protocols=0, buf={0:187}, buf={0:187}, descriptor={236:0}, dev={0:-8646840777026026944}, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, device={0:-8646840777026026944}, device={0:-8646840777026026944}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg5=null, mattr={0:190}, mattr={0:190}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp={0:187}, wq_load={72057869184271457:0}] [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={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg5=null, lock={0:-8646840777026025717}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [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={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg5=null, lock={0:-8646840777026025717}, lock={0:-8646840777026025717}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [L6387] ldv_mutex_lock_of_rc_dev = 2 VAL [\old(ldv_mutex_lock_of_rc_dev)=1, available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg5=null, lock={0:-8646840777026025717}, lock={0:-8646840777026025717}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [L5099] RET ldv_mutex_lock_lock_of_rc_dev(ldv_func_arg1) VAL [available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, ldv_func_arg1={0:-8646840777026025717}, ldv_func_arg1={0:-8646840777026025717}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [L5100] FCALL mutex_lock(ldv_func_arg1) VAL [available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, ldv_func_arg1={0:-8646840777026025717}, ldv_func_arg1={0:-8646840777026025717}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [L4272] RET ldv_mutex_lock_6(& dev->lock) [L4273] EXPR dev->driver_type VAL [__mptr={0:-8646840777026026944}, available_protocols=0, buf={0:187}, buf={0:187}, descriptor={236:0}, dev={0:-8646840777026026944}, dev->driver_type=-2147483648, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, device={0:-8646840777026026944}, device={0:-8646840777026026944}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg5=null, mattr={0:190}, mattr={0:190}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp={0:187}, wq_load={72057869184271457:0}] [L4273] COND FALSE !((unsigned int )dev->driver_type == 0U) [L4277] EXPR dev->raw VAL [__mptr={0:-8646840777026026944}, available_protocols=0, buf={0:187}, buf={0:187}, descriptor={236:0}, dev={0:-8646840777026026944}, dev->raw={-33554432:33554432}, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, device={0:-8646840777026026944}, device={0:-8646840777026026944}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg5=null, mattr={0:190}, mattr={0:190}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp={0:187}, wq_load={72057869184271457:0}] [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:-8646840777026026944}, available_protocols=0, buf={0:187}, buf={0:187}, dev={0:-8646840777026026944}, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, device={0:-8646840777026026944}, device={0:-8646840777026026944}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg5=null, mattr={0:190}, mattr={0:190}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp={0:187}, wq_load={72057869184271457:0}] [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={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=1, wq_load={72057869184271457:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: [L4998] case 2: [L5016] case 3: VAL [available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=1, wq_load={72057869184271457:0}] [L5017] COND TRUE ldv_state_variable_2 != 0 [L5018] tmp___3 = __VERIFIER_nondet_int() [L5020] case 0: VAL [available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg5=null, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=0, wq_load={72057869184271457:0}] [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)=191, __mptr={0:-8646840777026026944}, available_protocols=0, count=0, data={4503878800245363:0}, data={0:0}, descriptor={2305843284091601006:0}, descriptor___0={-9223372036854774639:0}, descriptor___1={72057869184271470:0}, descriptor___2={237:0}, descriptor___3={188:0}, dev={0:-8646840777026026944}, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, device={0:-8646840777026026944}, device={0:-8646840777026026944}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg4=191, ldvarg5={0:0}, len=191, mattr={0:190}, mattr={0:190}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, type={236:0}, wq_load={72057869184271457:0}] [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={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg4=191, ldvarg5={0:0}, lock={0:-8646840777026025717}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [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={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg4=191, ldvarg5={0:0}, lock={0:-8646840777026025717}, lock={0:-8646840777026025717}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [L6385] CALL ldv_error() VAL [\old(ldv_mutex_lock_of_rc_dev)=2, available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg4=191, ldvarg5={0:0}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] [L6023] reach_error() VAL [\old(ldv_mutex_lock_of_rc_dev)=2, available_protocols=0, dev_attr_protocols={2305843009213693982:0}, dev_attr_protocols_group0={0:-8646840777026026944}, dev_attr_protocols_group1={0:190}, empty={281474976710888:0}, empty_map={274877907016:0}, ir_input_class={210:0}, ir_raw_client_list={-2296835535081045906:0}, ir_raw_handler_list={4035225300483702810:0}, ir_raw_handler_lock={189:0}, 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=null, ldvarg1=null, ldvarg2=null, ldvarg3={0:187}, ldvarg4=191, ldvarg5={0:0}, proto_names={274877908107:0}, rc_core_debug=0, rc_dev_attr_groups={274877907181:0}, rc_dev_attr_grp={4294967382:0}, rc_dev_attrs={-8646911250191613716:0}, rc_dev_type={200:0}, rc_dev_type_group0=null, rc_map_list={-9223372036854775718:0}, rc_map_lock={1152921504606847062:0}, ref_cnt=0, wq_load={72057869184271457:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 317 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 83.4s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 2315 SdHoareTripleChecker+Valid, 17.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2315 mSDsluCounter, 6164 SdHoareTripleChecker+Invalid, 16.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2221 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 3943 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 531 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=546occurred in iteration=6, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 76 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 27.7s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 530 ConstructedInterpolants, 0 QuantifiedInterpolants, 994 SizeOfPredicates, 4 NumberOfNonLiveVariables, 8263 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 18/18 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 [2021-11-16 23:53:45,559 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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample