./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 c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 03:51:06,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:51:06,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:51:06,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:51:06,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:51:06,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:51:06,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:51:06,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:51:06,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:51:06,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:51:06,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:51:06,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:51:06,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:51:06,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:51:06,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:51:06,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:51:06,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:51:06,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:51:06,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:51:06,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:51:06,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:51:06,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:51:06,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:51:06,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:51:06,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:51:06,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:51:06,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:51:06,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:51:06,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:51:06,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:51:06,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:51:06,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:51:06,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:51:06,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:51:06,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:51:06,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:51:06,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:51:06,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:51:06,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:51:06,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:51:06,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:51:06,239 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 03:51:06,267 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:51:06,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:51:06,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:51:06,272 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:51:06,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:51:06,273 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:51:06,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:51:06,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:51:06,274 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:51:06,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:51:06,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:51:06,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:51:06,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:51:06,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:51:06,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:51:06,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:51:06,276 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:51:06,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:51:06,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:51:06,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:51:06,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:51:06,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:51:06,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:51:06,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:51:06,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:51:06,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:51:06,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:51:06,278 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:51:06,279 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:51:06,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:51:06,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:51:06,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 [2021-12-16 03:51:06,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:51:06,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:51:06,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:51:06,562 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:51:06,562 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:51:06,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-12-16 03:51:06,626 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1572709c1/2f411732905c40d086dd9efa69767ba1/FLAGac34159a5 [2021-12-16 03:51:07,355 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:51:07,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-12-16 03:51:07,400 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1572709c1/2f411732905c40d086dd9efa69767ba1/FLAGac34159a5 [2021-12-16 03:51:07,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1572709c1/2f411732905c40d086dd9efa69767ba1 [2021-12-16 03:51:07,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:51:07,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:51:07,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:51:07,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:51:07,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:51:07,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:51:07" (1/1) ... [2021-12-16 03:51:07,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4aab22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:07, skipping insertion in model container [2021-12-16 03:51:07,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:51:07" (1/1) ... [2021-12-16 03:51:07,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:51:07,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:51:09,140 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-12-16 03:51:09,244 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-16 03:51:09,251 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:51:09,279 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:51:09,542 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-12-16 03:51:09,557 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-16 03:51:09,559 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:51:09,628 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:51:09,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:09 WrapperNode [2021-12-16 03:51:09,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:51:09,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:51:09,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:51:09,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:51:09,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:09" (1/1) ... [2021-12-16 03:51:09,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:09" (1/1) ... [2021-12-16 03:51:09,816 INFO L137 Inliner]: procedures = 259, calls = 1650, calls flagged for inlining = 99, calls inlined = 32, statements flattened = 1369 [2021-12-16 03:51:09,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:51:09,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:51:09,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:51:09,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:51:09,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:09" (1/1) ... [2021-12-16 03:51:09,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:09" (1/1) ... [2021-12-16 03:51:09,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:09" (1/1) ... [2021-12-16 03:51:09,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:09" (1/1) ... [2021-12-16 03:51:09,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:09" (1/1) ... [2021-12-16 03:51:09,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:09" (1/1) ... [2021-12-16 03:51:09,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:09" (1/1) ... [2021-12-16 03:51:09,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:51:09,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:51:09,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:51:09,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:51:09,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:09" (1/1) ... [2021-12-16 03:51:09,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:51:09,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:51:09,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 03:51:10,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 03:51:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure ir_lookup_by_scancode [2021-12-16 03:51:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_lookup_by_scancode [2021-12-16 03:51:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 03:51:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 03:51:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ir_raw_handler_lock [2021-12-16 03:51:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ir_raw_handler_lock [2021-12-16 03:51:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 03:51:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 03:51:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure rc_dev_uevent [2021-12-16 03:51:10,029 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_dev_uevent [2021-12-16 03:51:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 03:51:10,029 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 03:51:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 03:51:10,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 03:51:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-16 03:51:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-16 03:51:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 03:51:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 03:51:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:51:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:51:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 03:51:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 03:51:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:51:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2021-12-16 03:51:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2021-12-16 03:51:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:51:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-16 03:51:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-16 03:51:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-16 03:51:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-16 03:51:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_rc_dev [2021-12-16 03:51:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_rc_dev [2021-12-16 03:51:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-16 03:51:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-16 03:51:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_rc_dev [2021-12-16 03:51:10,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_rc_dev [2021-12-16 03:51:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 03:51:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure rc_dev_release [2021-12-16 03:51:10,033 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_dev_release [2021-12-16 03:51:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 03:51:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:51:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 03:51:10,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 03:51:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-16 03:51:10,034 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-16 03:51:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ir_raw_handler_lock [2021-12-16 03:51:10,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ir_raw_handler_lock [2021-12-16 03:51:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:51:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 03:51:10,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 03:51:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:51:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:51:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 03:51:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure input_scancode_to_scalar [2021-12-16 03:51:10,037 INFO L138 BoogieDeclarations]: Found implementation of procedure input_scancode_to_scalar [2021-12-16 03:51:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-16 03:51:10,037 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-16 03:51:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-16 03:51:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-16 03:51:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-16 03:51:10,039 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-16 03:51:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:51:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:51:10,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:51:10,401 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:51:10,409 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:51:11,487 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:51:11,497 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:51:11,497 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 03:51:11,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:51:11 BoogieIcfgContainer [2021-12-16 03:51:11,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:51:11,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:51:11,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:51:11,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:51:11,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:51:07" (1/3) ... [2021-12-16 03:51:11,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24dd7be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:51:11, skipping insertion in model container [2021-12-16 03:51:11,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:09" (2/3) ... [2021-12-16 03:51:11,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24dd7be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:51:11, skipping insertion in model container [2021-12-16 03:51:11,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:51:11" (3/3) ... [2021-12-16 03:51:11,507 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-12-16 03:51:11,512 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:51:11,513 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:51:11,556 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:51:11,562 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 03:51:11,562 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:51:11,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 317 states, 239 states have (on average 1.4142259414225942) internal successors, (338), 250 states have internal predecessors, (338), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2021-12-16 03:51:11,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-16 03:51:11,596 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:11,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:11,598 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:11,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:11,607 INFO L85 PathProgramCache]: Analyzing trace with hash 273593741, now seen corresponding path program 1 times [2021-12-16 03:51:11,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:51:11,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933449435] [2021-12-16 03:51:11,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:11,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:51:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:12,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:51:12,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:51:12,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933449435] [2021-12-16 03:51:12,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933449435] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:12,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:12,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:51:12,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859523645] [2021-12-16 03:51:12,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:12,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:51:12,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:51:12,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:51:12,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:12,100 INFO L87 Difference]: Start difference. First operand has 317 states, 239 states have (on average 1.4142259414225942) internal successors, (338), 250 states have internal predecessors, (338), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:12,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:12,257 INFO L93 Difference]: Finished difference Result 736 states and 1044 transitions. [2021-12-16 03:51:12,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:51:12,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-16 03:51:12,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:12,272 INFO L225 Difference]: With dead ends: 736 [2021-12-16 03:51:12,272 INFO L226 Difference]: Without dead ends: 414 [2021-12-16 03:51:12,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:12,280 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 142 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:12,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 857 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:51:12,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-12-16 03:51:12,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 399. [2021-12-16 03:51:12,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 306 states have (on average 1.4248366013071896) internal successors, (436), 316 states have internal predecessors, (436), 62 states have call successors, (62), 31 states have call predecessors, (62), 30 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2021-12-16 03:51:12,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 551 transitions. [2021-12-16 03:51:12,345 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 551 transitions. Word has length 17 [2021-12-16 03:51:12,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:12,349 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 551 transitions. [2021-12-16 03:51:12,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:12,350 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 551 transitions. [2021-12-16 03:51:12,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-16 03:51:12,353 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:12,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:12,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 03:51:12,354 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:12,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:12,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1660204033, now seen corresponding path program 1 times [2021-12-16 03:51:12,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:51:12,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568285439] [2021-12-16 03:51:12,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:12,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:51:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:51:12,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:51:12,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568285439] [2021-12-16 03:51:12,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568285439] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:12,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:12,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:51:12,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779952300] [2021-12-16 03:51:12,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:12,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:51:12,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:51:12,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:51:12,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:12,467 INFO L87 Difference]: Start difference. First operand 399 states and 551 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:12,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:12,512 INFO L93 Difference]: Finished difference Result 401 states and 552 transitions. [2021-12-16 03:51:12,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:51:12,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-16 03:51:12,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:12,517 INFO L225 Difference]: With dead ends: 401 [2021-12-16 03:51:12,517 INFO L226 Difference]: Without dead ends: 398 [2021-12-16 03:51:12,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:12,519 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 408 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:12,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 423 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:51:12,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-12-16 03:51:12,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2021-12-16 03:51:12,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 306 states have (on average 1.4215686274509804) internal successors, (435), 315 states have internal predecessors, (435), 61 states have call successors, (61), 31 states have call predecessors, (61), 30 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2021-12-16 03:51:12,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 549 transitions. [2021-12-16 03:51:12,564 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 549 transitions. Word has length 19 [2021-12-16 03:51:12,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:12,564 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 549 transitions. [2021-12-16 03:51:12,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:12,565 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 549 transitions. [2021-12-16 03:51:12,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-16 03:51:12,566 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:12,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:12,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 03:51:12,567 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:12,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:12,567 INFO L85 PathProgramCache]: Analyzing trace with hash 73096171, now seen corresponding path program 1 times [2021-12-16 03:51:12,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:51:12,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329180839] [2021-12-16 03:51:12,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:12,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:51:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:12,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:51:12,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:51:12,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329180839] [2021-12-16 03:51:12,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329180839] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:12,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:12,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:51:12,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547790976] [2021-12-16 03:51:12,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:12,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:51:12,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:51:12,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:51:12,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:12,673 INFO L87 Difference]: Start difference. First operand 398 states and 549 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:12,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:12,723 INFO L93 Difference]: Finished difference Result 405 states and 553 transitions. [2021-12-16 03:51:12,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:51:12,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-16 03:51:12,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:12,726 INFO L225 Difference]: With dead ends: 405 [2021-12-16 03:51:12,726 INFO L226 Difference]: Without dead ends: 401 [2021-12-16 03:51:12,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:12,728 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 391 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:12,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 429 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:51:12,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2021-12-16 03:51:12,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 399. [2021-12-16 03:51:12,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 308 states have (on average 1.4123376623376624) internal successors, (435), 315 states have internal predecessors, (435), 59 states have call successors, (59), 32 states have call predecessors, (59), 31 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2021-12-16 03:51:12,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 547 transitions. [2021-12-16 03:51:12,755 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 547 transitions. Word has length 20 [2021-12-16 03:51:12,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:12,756 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 547 transitions. [2021-12-16 03:51:12,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:12,756 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 547 transitions. [2021-12-16 03:51:12,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-16 03:51:12,758 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:12,759 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:12,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 03:51:12,759 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:12,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:12,760 INFO L85 PathProgramCache]: Analyzing trace with hash -2029167486, now seen corresponding path program 1 times [2021-12-16 03:51:12,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:51:12,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244235422] [2021-12-16 03:51:12,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:12,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:51:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:12,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:51:12,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:51:12,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244235422] [2021-12-16 03:51:12,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244235422] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:12,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:12,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:51:12,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119498006] [2021-12-16 03:51:12,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:12,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:51:12,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:51:12,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:51:12,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:12,895 INFO L87 Difference]: Start difference. First operand 399 states and 547 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:12,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:12,946 INFO L93 Difference]: Finished difference Result 401 states and 548 transitions. [2021-12-16 03:51:12,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:51:12,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-16 03:51:12,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:12,953 INFO L225 Difference]: With dead ends: 401 [2021-12-16 03:51:12,954 INFO L226 Difference]: Without dead ends: 398 [2021-12-16 03:51:12,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:12,960 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 400 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:12,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 417 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:51:12,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-12-16 03:51:12,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2021-12-16 03:51:12,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 308 states have (on average 1.4090909090909092) internal successors, (434), 314 states have internal predecessors, (434), 58 states have call successors, (58), 32 states have call predecessors, (58), 31 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2021-12-16 03:51:12,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 545 transitions. [2021-12-16 03:51:12,989 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 545 transitions. Word has length 21 [2021-12-16 03:51:12,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:12,989 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 545 transitions. [2021-12-16 03:51:12,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:12,989 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 545 transitions. [2021-12-16 03:51:12,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-16 03:51:12,992 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:12,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:12,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 03:51:12,993 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:12,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:12,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1520140750, now seen corresponding path program 1 times [2021-12-16 03:51:12,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:51:12,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290169797] [2021-12-16 03:51:12,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:12,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:51:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:13,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:51:13,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:51:13,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290169797] [2021-12-16 03:51:13,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290169797] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:13,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:13,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:51:13,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189024405] [2021-12-16 03:51:13,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:13,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:51:13,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:51:13,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:51:13,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:13,133 INFO L87 Difference]: Start difference. First operand 398 states and 545 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:13,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:13,199 INFO L93 Difference]: Finished difference Result 604 states and 834 transitions. [2021-12-16 03:51:13,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:51:13,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-16 03:51:13,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:13,202 INFO L225 Difference]: With dead ends: 604 [2021-12-16 03:51:13,202 INFO L226 Difference]: Without dead ends: 600 [2021-12-16 03:51:13,203 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:13,203 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 152 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:13,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 826 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:51:13,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2021-12-16 03:51:13,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 598. [2021-12-16 03:51:13,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 471 states have (on average 1.4288747346072186) internal successors, (673), 479 states have internal predecessors, (673), 80 states have call successors, (80), 48 states have call predecessors, (80), 46 states have return successors, (75), 71 states have call predecessors, (75), 75 states have call successors, (75) [2021-12-16 03:51:13,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 828 transitions. [2021-12-16 03:51:13,229 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 828 transitions. Word has length 22 [2021-12-16 03:51:13,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:13,229 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 828 transitions. [2021-12-16 03:51:13,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:13,230 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 828 transitions. [2021-12-16 03:51:13,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-16 03:51:13,231 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:13,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:13,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 03:51:13,231 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:13,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:13,232 INFO L85 PathProgramCache]: Analyzing trace with hash -120448763, now seen corresponding path program 1 times [2021-12-16 03:51:13,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:51:13,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116830214] [2021-12-16 03:51:13,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:13,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:51:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:51:13,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:51:13,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116830214] [2021-12-16 03:51:13,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116830214] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:13,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:13,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:51:13,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25774108] [2021-12-16 03:51:13,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:13,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:51:13,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:51:13,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:51:13,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:13,335 INFO L87 Difference]: Start difference. First operand 598 states and 828 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:13,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:13,381 INFO L93 Difference]: Finished difference Result 600 states and 829 transitions. [2021-12-16 03:51:13,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:51:13,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-16 03:51:13,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:13,387 INFO L225 Difference]: With dead ends: 600 [2021-12-16 03:51:13,387 INFO L226 Difference]: Without dead ends: 575 [2021-12-16 03:51:13,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:13,389 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 396 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:13,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:51:13,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2021-12-16 03:51:13,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2021-12-16 03:51:13,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 457 states have (on average 1.4310722100656454) internal successors, (654), 463 states have internal predecessors, (654), 73 states have call successors, (73), 46 states have call predecessors, (73), 44 states have return successors, (69), 66 states have call predecessors, (69), 69 states have call successors, (69) [2021-12-16 03:51:13,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 796 transitions. [2021-12-16 03:51:13,416 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 796 transitions. Word has length 23 [2021-12-16 03:51:13,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:13,416 INFO L470 AbstractCegarLoop]: Abstraction has 575 states and 796 transitions. [2021-12-16 03:51:13,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:13,417 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 796 transitions. [2021-12-16 03:51:13,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-16 03:51:13,419 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:13,419 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:13,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 03:51:13,419 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:13,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:13,420 INFO L85 PathProgramCache]: Analyzing trace with hash 590221083, now seen corresponding path program 1 times [2021-12-16 03:51:13,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:51:13,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984013342] [2021-12-16 03:51:13,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:13,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:51:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:13,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-16 03:51:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:13,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-16 03:51:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:13,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-16 03:51:13,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:51:13,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984013342] [2021-12-16 03:51:13,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984013342] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:13,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:13,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:51:13,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471914719] [2021-12-16 03:51:13,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:13,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:51:13,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:51:13,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:51:13,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:51:13,570 INFO L87 Difference]: Start difference. First operand 575 states and 796 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-16 03:51:13,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:13,869 INFO L93 Difference]: Finished difference Result 1146 states and 1588 transitions. [2021-12-16 03:51:13,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:51:13,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2021-12-16 03:51:13,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:13,874 INFO L225 Difference]: With dead ends: 1146 [2021-12-16 03:51:13,875 INFO L226 Difference]: Without dead ends: 574 [2021-12-16 03:51:13,876 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 [2021-12-16 03:51:13,878 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 457 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:13,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [483 Valid, 902 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 03:51:13,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-12-16 03:51:13,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2021-12-16 03:51:13,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 457 states have (on average 1.4266958424507659) internal successors, (652), 462 states have internal predecessors, (652), 72 states have call successors, (72), 46 states have call predecessors, (72), 44 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2021-12-16 03:51:13,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 791 transitions. [2021-12-16 03:51:13,904 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 791 transitions. Word has length 45 [2021-12-16 03:51:13,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:13,905 INFO L470 AbstractCegarLoop]: Abstraction has 574 states and 791 transitions. [2021-12-16 03:51:13,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-16 03:51:13,905 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 791 transitions. [2021-12-16 03:51:13,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-16 03:51:13,907 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:13,907 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:13,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 03:51:13,907 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:13,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:13,908 INFO L85 PathProgramCache]: Analyzing trace with hash 741731796, now seen corresponding path program 1 times [2021-12-16 03:51:13,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:51:13,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020326354] [2021-12-16 03:51:13,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:13,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:51:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:14,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 03:51:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:14,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-16 03:51:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:14,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-16 03:51:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:14,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:51:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:14,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-16 03:51:14,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:51:14,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020326354] [2021-12-16 03:51:14,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020326354] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:14,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:14,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:51:14,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49778653] [2021-12-16 03:51:14,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:14,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:51:14,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:51:14,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:51:14,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:51:14,072 INFO L87 Difference]: Start difference. First operand 574 states and 791 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 03:51:14,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:14,509 INFO L93 Difference]: Finished difference Result 576 states and 792 transitions. [2021-12-16 03:51:14,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 03:51:14,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2021-12-16 03:51:14,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:14,513 INFO L225 Difference]: With dead ends: 576 [2021-12-16 03:51:14,513 INFO L226 Difference]: Without dead ends: 573 [2021-12-16 03:51:14,514 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 [2021-12-16 03:51:14,514 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 238 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:14,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 1031 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 03:51:14,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-12-16 03:51:14,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2021-12-16 03:51:14,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 457 states have (on average 1.424507658643326) internal successors, (651), 461 states have internal predecessors, (651), 71 states have call successors, (71), 46 states have call predecessors, (71), 44 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2021-12-16 03:51:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 789 transitions. [2021-12-16 03:51:14,539 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 789 transitions. Word has length 54 [2021-12-16 03:51:14,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:14,540 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 789 transitions. [2021-12-16 03:51:14,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-16 03:51:14,540 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 789 transitions. [2021-12-16 03:51:14,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-16 03:51:14,542 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:14,542 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:14,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 03:51:14,542 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:14,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:14,543 INFO L85 PathProgramCache]: Analyzing trace with hash 360678227, now seen corresponding path program 1 times [2021-12-16 03:51:14,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:51:14,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632310922] [2021-12-16 03:51:14,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:14,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:51:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:14,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 03:51:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:14,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-16 03:51:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:14,772 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-16 03:51:14,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:51:14,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632310922] [2021-12-16 03:51:14,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632310922] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:14,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:14,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:51:14,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594737528] [2021-12-16 03:51:14,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:14,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:51:14,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:51:14,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:51:14,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:51:14,774 INFO L87 Difference]: Start difference. First operand 573 states and 789 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-16 03:51:15,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:15,296 INFO L93 Difference]: Finished difference Result 1171 states and 1609 transitions. [2021-12-16 03:51:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 03:51:15,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 53 [2021-12-16 03:51:15,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:15,300 INFO L225 Difference]: With dead ends: 1171 [2021-12-16 03:51:15,300 INFO L226 Difference]: Without dead ends: 593 [2021-12-16 03:51:15,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-16 03:51:15,301 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 140 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:15,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 1164 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 03:51:15,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-12-16 03:51:15,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 525. [2021-12-16 03:51:15,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 425 states have (on average 1.44) internal successors, (612), 428 states have internal predecessors, (612), 62 states have call successors, (62), 39 states have call predecessors, (62), 37 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2021-12-16 03:51:15,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 732 transitions. [2021-12-16 03:51:15,324 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 732 transitions. Word has length 53 [2021-12-16 03:51:15,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:15,324 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 732 transitions. [2021-12-16 03:51:15,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-16 03:51:15,325 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 732 transitions. [2021-12-16 03:51:15,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-16 03:51:15,326 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:15,326 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:15,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 03:51:15,327 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:15,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:15,327 INFO L85 PathProgramCache]: Analyzing trace with hash 763976356, now seen corresponding path program 1 times [2021-12-16 03:51:15,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:51:15,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460891020] [2021-12-16 03:51:15,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:15,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:51:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 03:51:15,479 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 03:51:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 03:51:15,708 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 03:51:15,708 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-16 03:51:15,709 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 03:51:15,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 03:51:15,714 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:15,717 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 03:51:15,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:51:15 BoogieIcfgContainer [2021-12-16 03:51:15,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 03:51:15,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 03:51:15,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 03:51:15,860 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 03:51:15,861 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:51:11" (3/4) ... [2021-12-16 03:51:15,865 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-16 03:51:15,865 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 03:51:15,865 INFO L158 Benchmark]: Toolchain (without parser) took 8259.70ms. Allocated memory was 96.5MB in the beginning and 243.3MB in the end (delta: 146.8MB). Free memory was 58.5MB in the beginning and 69.1MB in the end (delta: -10.5MB). Peak memory consumption was 137.4MB. Max. memory is 16.1GB. [2021-12-16 03:51:15,866 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 03:51:15,866 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2020.28ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 58.5MB in the beginning and 66.3MB in the end (delta: -7.8MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2021-12-16 03:51:15,866 INFO L158 Benchmark]: Boogie Procedure Inliner took 185.97ms. Allocated memory is still 142.6MB. Free memory was 66.3MB in the beginning and 89.3MB in the end (delta: -23.0MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2021-12-16 03:51:15,867 INFO L158 Benchmark]: Boogie Preprocessor took 133.44ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 80.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-16 03:51:15,867 INFO L158 Benchmark]: RCFGBuilder took 1548.56ms. Allocated memory was 142.6MB in the beginning and 186.6MB in the end (delta: 44.0MB). Free memory was 80.9MB in the beginning and 104.8MB in the end (delta: -23.9MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2021-12-16 03:51:15,868 INFO L158 Benchmark]: TraceAbstraction took 4358.10ms. Allocated memory was 186.6MB in the beginning and 243.3MB in the end (delta: 56.6MB). Free memory was 104.8MB in the beginning and 69.1MB in the end (delta: 35.7MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2021-12-16 03:51:15,868 INFO L158 Benchmark]: Witness Printer took 5.14ms. Allocated memory is still 243.3MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 03:51:15,870 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2020.28ms. Allocated memory was 96.5MB in the beginning and 142.6MB in the end (delta: 46.1MB). Free memory was 58.5MB in the beginning and 66.3MB in the end (delta: -7.8MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 185.97ms. Allocated memory is still 142.6MB. Free memory was 66.3MB in the beginning and 89.3MB in the end (delta: -23.0MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 133.44ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 80.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1548.56ms. Allocated memory was 142.6MB in the beginning and 186.6MB in the end (delta: 44.0MB). Free memory was 80.9MB in the beginning and 104.8MB in the end (delta: -23.9MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4358.10ms. Allocated memory was 186.6MB in the beginning and 243.3MB in the end (delta: 56.6MB). Free memory was 104.8MB in the beginning and 69.1MB in the end (delta: 35.7MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. * Witness Printer took 5.14ms. Allocated memory is still 243.3MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 6023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 3473. Possible FailurePath: [L3298] int ldv_state_variable_3 ; [L3299] int ldv_state_variable_1 ; [L3300] int ldv_state_variable_2 ; [L3301] int ref_cnt ; [L3302] int ldv_state_variable_0 ; [L3412] int rc_core_debug ; [L3472] static struct list_head rc_map_list = {& rc_map_list, & rc_map_list}; [L3473-L3474] static spinlock_t rc_map_lock = {{{{{0U}}, 3735899821U, 4294967295U, 0xffffffffffffffffUL, {0, {0, 0}, "rc_map_lock", 0, 0UL}}}}; [L3551] static struct rc_map_table empty[1U] = { {42U, 152U}}; [L3552-L3559] static struct rc_map_list empty_map = {{0, 0}, {(struct rc_map_table *)(& empty), 1U, 0U, 0U, 0, "rc-empty", {{{{{0U}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}}}; [L4237-L4238] static struct class ir_input_class = {"rc", 0, 0, 0, 0, 0, 0, & ir_devnode, 0, 0, 0, 0, 0, 0, 0, 0}; [L4239-L4251] static struct __anonstruct_proto_names_168 proto_names[12U] = { {0ULL, (char *)"none"}, {2ULL, (char *)"other"}, {1ULL, (char *)"unknown"}, {24ULL, (char *)"rc-5"}, {1024ULL, (char *)"nec"}, {253952ULL, (char *)"rc-6"}, {64ULL, (char *)"jvc"}, {896ULL, (char *)"sony"}, {32ULL, (char *)"rc-5-sz"}, {2048ULL, (char *)"sanyo"}, {4096ULL, (char *)"mce_kbd"}, {4ULL, (char *)"lirc"}}; [L4578-L4580] static struct device_attribute dev_attr_protocols = {{"protocols", 420U, (_Bool)0, 0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_protocols, & store_protocols}; [L4581] static struct attribute *rc_dev_attrs[2U] = { & dev_attr_protocols.attr, 0}; [L4582] static struct attribute_group rc_dev_attr_grp = {0, 0, (struct attribute **)(& rc_dev_attrs)}; [L4583] static struct attribute_group const *rc_dev_attr_groups[2U] = { (struct attribute_group const *)(& rc_dev_attr_grp), 0}; [L4584-L4585] static struct device_type rc_dev_type = {0, (struct attribute_group const **)(& rc_dev_attr_groups), & rc_dev_uevent, 0, & rc_dev_release, 0}; [L4884] char *ldvarg3 ; [L4885] struct device *dev_attr_protocols_group0 ; [L4886] struct kobj_uevent_env *ldvarg0 ; [L4887] char *ldvarg5 ; [L4888] struct device *ldvarg1 ; [L4889] int ldv_retval_0 ; [L4890] size_t ldvarg4 ; [L4892] struct device_attribute *dev_attr_protocols_group1 ; [L4894] struct device *rc_dev_type_group0 ; [L4895] umode_t *ldvarg2 ; [L5297] static struct list_head ir_raw_client_list = {& ir_raw_client_list, & ir_raw_client_list}; [L5298-L5301] static struct mutex ir_raw_handler_lock = {{1}, {{{{{0U}}, 3735899821U, 4294967295U, 0xffffffffffffffffUL, {0, {0, 0}, "ir_raw_handler_lock.wait_lock", 0, 0UL}}}}, {& ir_raw_handler_lock.wait_list, & ir_raw_handler_lock.wait_list}, 0, 0, (void *)(& ir_raw_handler_lock), {0, {0, 0}, "ir_raw_handler_lock", 0, 0UL}}; [L5302] static struct list_head ir_raw_handler_list = {& ir_raw_handler_list, & ir_raw_handler_list}; [L5303] static u64 available_protocols ; [L5304] static struct work_struct wq_load ; [L6040] static int ldv_mutex_cred_guard_mutex_of_signal_struct ; [L6143] static int ldv_mutex_ir_raw_handler_lock ; [L6245] static int ldv_mutex_lock ; [L6347] static int ldv_mutex_lock_of_rc_dev ; [L6449] static int ldv_mutex_mutex_of_device ; VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:0}, dev_attr_protocols_group1={0:0}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=0, ldv_mutex_ir_raw_handler_lock=0, ldv_mutex_lock=0, ldv_mutex_lock_of_rc_dev=0, ldv_mutex_mutex_of_device=0, ldv_retval_0=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=0, ldvarg5={0:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L4898] int tmp ; [L4899] int tmp___0 ; [L4900] int tmp___1 ; [L4901] int tmp___2 ; [L4902] int tmp___3 ; [L4904] ldvarg0 = (struct kobj_uevent_env*) __VERIFIER_nondet_long () [L4905] ldvarg1 = (struct device*) __VERIFIER_nondet_long () [L4906] ldvarg2 = (umode_t *) __VERIFIER_nondet_long () [L4907] ldvarg3 = (char*) __VERIFIER_nondet_long () [L4908] ldvarg4 = (size_t) __VERIFIER_nondet_long () [L4909] ldvarg5 = (char*) __VERIFIER_nondet_long () [L4910] dev_attr_protocols_group0 = (struct device *)__VERIFIER_nondet_long () [L4911] dev_attr_protocols_group1 = (struct device_attribute *)__VERIFIER_nondet_long () [L4912] rc_dev_type_group0 = (struct device*) __VERIFIER_nondet_long () [L4913] CALL ldv_initialize() [L6554] ldv_mutex_cred_guard_mutex_of_signal_struct = 1 [L6555] ldv_mutex_ir_raw_handler_lock = 1 [L6556] ldv_mutex_lock = 1 [L6557] ldv_mutex_lock_of_rc_dev = 1 [L6558] ldv_mutex_mutex_of_device = 1 VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L4913] RET ldv_initialize() [L4914] ldv_state_variable_1 = 0 [L4915] ref_cnt = 0 [L4916] ldv_state_variable_0 = 1 [L4917] ldv_state_variable_3 = 0 [L4918] ldv_state_variable_2 = 0 VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=1, wq_load={201:0}] [L4962] COND TRUE ldv_state_variable_0 != 0 [L4963] tmp___1 = __VERIFIER_nondet_int() [L4965] case 0: [L4973] case 1: VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=1, tmp___1=1, wq_load={201:0}] [L4974] COND TRUE ldv_state_variable_0 == 1 [L4975] CALL, EXPR rc_core_init() [L4861] int rc ; [L4862] struct lock_class_key __key ; [L4863] int tmp ; [L4865] CALL, EXPR __class_register(& ir_input_class, & __key) [L6590] return __VERIFIER_nondet_int(); [L4865] RET, EXPR __class_register(& ir_input_class, & __key) [L4865] tmp = __class_register(& ir_input_class, & __key) [L4866] rc = tmp VAL [__key={203:0}, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc=0, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=0, wq_load={201:0}] [L4867] COND FALSE !(rc != 0) [L4872] CALL rc_map_register(& empty_map) [L3536] CALL spin_lock(& rc_map_lock) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L3319] FCALL _raw_spin_lock(& lock->ldv_5961.rlock) [L3536] RET spin_lock(& rc_map_lock) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, map={190:0}, map={190:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L3537] CALL list_add_tail(& map->list, & rc_map_list) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L3236] EXPR head->prev [L3236] FCALL __list_add(new, head->prev, head) [L3537] RET list_add_tail(& map->list, & rc_map_list) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, map={190:0}, map={190:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L3538] CALL spin_unlock(& rc_map_lock) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L3326] FCALL _raw_spin_unlock(& lock->ldv_5961.rlock) [L3538] RET spin_unlock(& rc_map_lock) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, map={190:0}, map={190:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L3539] return (0); VAL [\result=0, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, map={190:0}, map={190:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L4872] RET rc_map_register(& empty_map) [L4873] return (0); [L4873] return (0); VAL [\result=0, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc=0, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=0, wq_load={201:0}] [L4975] RET, EXPR rc_core_init() [L4975] ldv_retval_0 = rc_core_init() [L4976] COND TRUE ldv_retval_0 == 0 [L4977] ldv_state_variable_0 = 3 [L4978] ldv_state_variable_2 = 1 [L4979] ldv_state_variable_3 = 1 [L4980] ldv_state_variable_1 = 1 VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=1, tmp___1=1, wq_load={201:0}] [L4983] COND FALSE !(ldv_retval_0 != 0) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=1, tmp___1=1, wq_load={201:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: [L4998] case 2: [L5016] case 3: VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=3, tmp___1=1, wq_load={201:0}] [L5017] COND TRUE ldv_state_variable_2 != 0 [L5018] tmp___3 = __VERIFIER_nondet_int() [L5020] case 0: [L5028] case 1: VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=1, wq_load={201:0}] [L5029] COND TRUE ldv_state_variable_2 == 1 [L5030] CALL show_protocols(dev_attr_protocols_group0, dev_attr_protocols_group1, ldvarg3) [L4254] struct rc_dev *dev ; [L4255] struct device const *__mptr ; [L4256] u64 allowed ; [L4257] u64 enabled ; [L4258] char *tmp ; [L4259] int i ; [L4260] struct _ddebug descriptor ; [L4261] long tmp___0 ; [L4262] int tmp___1 ; [L4263] int tmp___2 ; [L4265] __mptr = (struct device const *)device [L4266] dev = (struct rc_dev *)__mptr [L4267] tmp = buf VAL [__mptr={0:-1227}, available_protocols=0, buf={0:-3}, buf={0:-3}, descriptor={204:0}, dev={0:-1227}, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, device={0:-1227}, device={0:-1227}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, mattr={0:-2}, mattr={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp={0:-3}, wq_load={201:0}] [L4268] COND FALSE !((unsigned long )dev == (unsigned long )((struct rc_dev *)0)) [L4272] CALL ldv_mutex_lock_6(& dev->lock) [L5099] CALL ldv_mutex_lock_lock_of_rc_dev(ldv_func_arg1) VAL [\old(ldv_mutex_lock_of_rc_dev)=1, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, lock={0:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L6383] COND TRUE ldv_mutex_lock_of_rc_dev == 1 VAL [\old(ldv_mutex_lock_of_rc_dev)=1, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=1, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, lock={0:0}, lock={0:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L6387] ldv_mutex_lock_of_rc_dev = 2 VAL [\old(ldv_mutex_lock_of_rc_dev)=1, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, lock={0:0}, lock={0:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L5099] RET ldv_mutex_lock_lock_of_rc_dev(ldv_func_arg1) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_func_arg1={0:0}, ldv_func_arg1={0:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L5100] FCALL mutex_lock(ldv_func_arg1) VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_func_arg1={0:0}, ldv_func_arg1={0:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L4272] RET ldv_mutex_lock_6(& dev->lock) [L4273] EXPR dev->driver_type VAL [__mptr={0:-1227}, available_protocols=0, buf={0:-3}, buf={0:-3}, descriptor={204:0}, dev={0:-1227}, dev->driver_type=4294967297, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, device={0:-1227}, device={0:-1227}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, mattr={0:-2}, mattr={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp={0:-3}, wq_load={201:0}] [L4273] COND FALSE !((unsigned int )dev->driver_type == 0U) [L4277] EXPR dev->raw VAL [__mptr={0:-1227}, available_protocols=0, buf={0:-3}, buf={0:-3}, descriptor={204:0}, dev={0:-1227}, dev->raw={0:0}, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, device={0:-1227}, device={0:-1227}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, mattr={0:-2}, mattr={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp={0:-3}, wq_load={201:0}] [L4277] COND FALSE !((unsigned long )dev->raw != (unsigned long )((struct ir_raw_event_ctrl *)0)) [L4281] return (-19L); [L4281] return (-19L); VAL [\result=-19, __mptr={0:-1227}, available_protocols=0, buf={0:-3}, buf={0:-3}, dev={0:-1227}, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, device={0:-1227}, device={0:-1227}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, mattr={0:-2}, mattr={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp={0:-3}, wq_load={201:0}] [L5030] RET show_protocols(dev_attr_protocols_group0, dev_attr_protocols_group1, ldvarg3) [L5031] ldv_state_variable_2 = 1 VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=1, wq_load={201:0}] [L4920] tmp = __VERIFIER_nondet_int() [L4922] case 0: [L4961] case 1: [L4998] case 2: [L5016] case 3: VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=1, wq_load={201:0}] [L5017] COND TRUE ldv_state_variable_2 != 0 [L5018] tmp___3 = __VERIFIER_nondet_int() [L5020] case 0: VAL [available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, tmp=3, tmp___1=1, tmp___3=0, wq_load={201:0}] [L5021] COND TRUE ldv_state_variable_2 == 1 [L5022-L5023] CALL store_protocols(dev_attr_protocols_group0, dev_attr_protocols_group1, (char const *)ldvarg5, ldvarg4) [L4333] struct rc_dev *dev ; [L4334] struct device const *__mptr ; [L4335] bool enable ; [L4336] bool disable ; [L4337] char const *tmp ; [L4338] u64 type ; [L4339] u64 mask ; [L4340] int rc ; [L4341] int i ; [L4342] int count ; [L4343] unsigned long flags ; [L4344] ssize_t ret ; [L4345] struct _ddebug descriptor ; [L4346] long tmp___0 ; [L4347] int tmp___1 ; [L4348] struct _ddebug descriptor___0 ; [L4349] long tmp___2 ; [L4350] char *tmp___3 ; [L4351] struct _ddebug descriptor___1 ; [L4352] long tmp___4 ; [L4353] struct _ddebug descriptor___2 ; [L4354] long tmp___5 ; [L4355] raw_spinlock_t *tmp___6 ; [L4356] struct _ddebug descriptor___3 ; [L4357] long tmp___7 ; [L4359] __mptr = (struct device const *)device [L4360] dev = (struct rc_dev *)__mptr [L4361] count = 0 VAL [\old(len)=18446744073709551611, __mptr={0:-1227}, available_protocols=0, count=0, data={0:-4}, data={210:0}, descriptor={209:0}, descriptor___0={208:0}, descriptor___1={202:0}, descriptor___2={205:0}, descriptor___3={207:0}, dev={0:-1227}, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, device={0:-1227}, device={0:-1227}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, len=18446744073709551611, mattr={0:-2}, mattr={0:-2}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, type={206:0}, wq_load={201:0}] [L4362] COND FALSE !((unsigned long )dev == (unsigned long )((struct rc_dev *)0)) [L4366] CALL ldv_mutex_lock_8(& dev->lock) [L5115] CALL ldv_mutex_lock_lock_of_rc_dev(ldv_func_arg1) VAL [\old(ldv_mutex_lock_of_rc_dev)=2, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, lock={0:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L6383] COND FALSE !(ldv_mutex_lock_of_rc_dev == 1) VAL [\old(ldv_mutex_lock_of_rc_dev)=2, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, lock={0:0}, lock={0:0}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L6385] CALL ldv_error() VAL [\old(ldv_mutex_lock_of_rc_dev)=2, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] [L6023] reach_error() VAL [\old(ldv_mutex_lock_of_rc_dev)=2, available_protocols=0, dev_attr_protocols={193:0}, dev_attr_protocols_group0={0:-1227}, dev_attr_protocols_group1={0:-2}, empty={189:0}, empty_map={190:0}, ir_input_class={191:0}, ir_raw_client_list={198:0}, ir_raw_handler_list={200:0}, ir_raw_handler_lock={199:0}, ldv_mutex_cred_guard_mutex_of_signal_struct=1, ldv_mutex_ir_raw_handler_lock=1, ldv_mutex_lock=1, ldv_mutex_lock_of_rc_dev=2, ldv_mutex_mutex_of_device=1, ldv_retval_0=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldvarg0={0:0}, ldvarg1={0:0}, ldvarg2={0:0}, ldvarg3={0:-3}, ldvarg4=18446744073709551611, ldvarg5={0:-4}, proto_names={192:0}, rc_core_debug=0, rc_dev_attr_groups={196:0}, rc_dev_attr_grp={195:0}, rc_dev_attrs={194:0}, rc_dev_type={197:0}, rc_dev_type_group0={0:0}, rc_map_list={187:0}, rc_map_lock={188:0}, ref_cnt=0, wq_load={201:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 317 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2760 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2724 mSDsluCounter, 6465 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2622 mSDsCounter, 245 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 733 IncrementalHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 245 mSolverCounterUnsat, 3843 mSDtfsCounter, 733 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 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, 0.6s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 265 ConstructedInterpolants, 0 QuantifiedInterpolants, 509 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 24/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-16 03:51:15,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 03:51:17,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:51:17,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:51:18,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:51:18,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:51:18,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:51:18,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:51:18,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:51:18,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:51:18,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:51:18,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:51:18,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:51:18,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:51:18,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:51:18,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:51:18,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:51:18,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:51:18,052 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:51:18,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:51:18,059 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:51:18,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:51:18,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:51:18,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:51:18,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:51:18,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:51:18,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:51:18,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:51:18,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:51:18,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:51:18,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:51:18,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:51:18,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:51:18,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:51:18,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:51:18,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:51:18,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:51:18,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:51:18,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:51:18,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:51:18,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:51:18,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:51:18,084 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-16 03:51:18,120 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:51:18,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:51:18,122 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:51:18,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:51:18,123 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:51:18,123 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:51:18,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:51:18,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:51:18,125 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:51:18,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:51:18,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:51:18,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:51:18,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:51:18,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:51:18,127 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-16 03:51:18,127 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-16 03:51:18,127 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-16 03:51:18,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:51:18,127 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:51:18,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:51:18,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:51:18,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:51:18,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:51:18,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:51:18,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:51:18,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:51:18,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:51:18,140 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-16 03:51:18,141 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-16 03:51:18,141 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:51:18,141 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:51:18,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:51:18,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:51:18,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-16 03:51:18,142 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8001390eb2f6d47f3c7e12a6690b5c61f51c12957cc81df6245a38db5a896095 [2021-12-16 03:51:18,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:51:18,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:51:18,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:51:18,456 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:51:18,457 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:51:18,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-12-16 03:51:18,519 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703e79a33/9e91f6e3b44244ddb398454017d9734d/FLAGa8c717f08 [2021-12-16 03:51:19,287 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:51:19,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-12-16 03:51:19,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703e79a33/9e91f6e3b44244ddb398454017d9734d/FLAGa8c717f08 [2021-12-16 03:51:19,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703e79a33/9e91f6e3b44244ddb398454017d9734d [2021-12-16 03:51:19,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:51:19,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:51:19,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:51:19,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:51:19,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:51:19,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:51:19" (1/1) ... [2021-12-16 03:51:19,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4007b6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:19, skipping insertion in model container [2021-12-16 03:51:19,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:51:19" (1/1) ... [2021-12-16 03:51:19,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:51:19,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:51:20,591 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-12-16 03:51:20,700 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-16 03:51:20,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:51:20,756 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-16 03:51:20,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:51:21,041 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-12-16 03:51:21,057 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-16 03:51:21,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:51:21,076 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:51:21,372 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i[175309,175322] [2021-12-16 03:51:21,385 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-16 03:51:21,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:51:21,456 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:51:21,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:21 WrapperNode [2021-12-16 03:51:21,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:51:21,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:51:21,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:51:21,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:51:21,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:21" (1/1) ... [2021-12-16 03:51:21,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:21" (1/1) ... [2021-12-16 03:51:21,632 INFO L137 Inliner]: procedures = 274, calls = 1650, calls flagged for inlining = 99, calls inlined = 32, statements flattened = 1331 [2021-12-16 03:51:21,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:51:21,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:51:21,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:51:21,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:51:21,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:21" (1/1) ... [2021-12-16 03:51:21,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:21" (1/1) ... [2021-12-16 03:51:21,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:21" (1/1) ... [2021-12-16 03:51:21,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:21" (1/1) ... [2021-12-16 03:51:21,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:21" (1/1) ... [2021-12-16 03:51:21,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:21" (1/1) ... [2021-12-16 03:51:21,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:21" (1/1) ... [2021-12-16 03:51:21,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:51:21,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:51:21,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:51:21,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:51:21,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:21" (1/1) ... [2021-12-16 03:51:21,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:51:21,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:51:21,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 03:51:21,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 03:51:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure ir_lookup_by_scancode [2021-12-16 03:51:21,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_lookup_by_scancode [2021-12-16 03:51:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-16 03:51:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-16 03:51:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-16 03:51:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 03:51:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-16 03:51:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 03:51:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ir_raw_handler_lock [2021-12-16 03:51:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ir_raw_handler_lock [2021-12-16 03:51:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 03:51:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 03:51:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure rc_dev_uevent [2021-12-16 03:51:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_dev_uevent [2021-12-16 03:51:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 03:51:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 03:51:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 03:51:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 03:51:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-16 03:51:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-16 03:51:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 03:51:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 03:51:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:51:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:51:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 03:51:21,851 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 03:51:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-16 03:51:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-16 03:51:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-16 03:51:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:51:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-16 03:51:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2021-12-16 03:51:21,852 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2021-12-16 03:51:21,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:51:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-16 03:51:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-16 03:51:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-16 03:51:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-16 03:51:21,853 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-16 03:51:21,853 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-16 03:51:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-16 03:51:21,854 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-16 03:51:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_rc_dev [2021-12-16 03:51:21,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_rc_dev [2021-12-16 03:51:21,854 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-16 03:51:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-16 03:51:21,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_rc_dev [2021-12-16 03:51:21,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_rc_dev [2021-12-16 03:51:21,856 INFO L130 BoogieDeclarations]: Found specification of procedure rc_dev_release [2021-12-16 03:51:21,856 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_dev_release [2021-12-16 03:51:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 03:51:21,857 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 03:51:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-16 03:51:21,857 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-16 03:51:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ir_raw_handler_lock [2021-12-16 03:51:21,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ir_raw_handler_lock [2021-12-16 03:51:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-16 03:51:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-16 03:51:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-16 03:51:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-16 03:51:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-12-16 03:51:21,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-12-16 03:51:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 03:51:21,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 03:51:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:51:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:51:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 03:51:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-16 03:51:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-16 03:51:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-16 03:51:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure input_scancode_to_scalar [2021-12-16 03:51:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure input_scancode_to_scalar [2021-12-16 03:51:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-16 03:51:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-16 03:51:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-16 03:51:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-16 03:51:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-16 03:51:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:51:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:51:22,282 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:51:22,284 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:51:28,713 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:51:28,722 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:51:28,722 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 03:51:28,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:51:28 BoogieIcfgContainer [2021-12-16 03:51:28,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:51:28,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:51:28,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:51:28,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:51:28,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:51:19" (1/3) ... [2021-12-16 03:51:28,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac5cae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:51:28, skipping insertion in model container [2021-12-16 03:51:28,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:51:21" (2/3) ... [2021-12-16 03:51:28,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ac5cae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:51:28, skipping insertion in model container [2021-12-16 03:51:28,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:51:28" (3/3) ... [2021-12-16 03:51:28,731 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--rc--rc-core.ko-main.cil.out.i [2021-12-16 03:51:28,736 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:51:28,736 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:51:28,777 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:51:28,785 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 03:51:28,786 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:51:28,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 317 states, 239 states have (on average 1.4142259414225942) internal successors, (338), 250 states have internal predecessors, (338), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2021-12-16 03:51:28,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-16 03:51:28,820 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:28,820 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:28,821 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:28,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:28,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1403411196, now seen corresponding path program 1 times [2021-12-16 03:51:28,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:51:28,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604756326] [2021-12-16 03:51:28,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:28,843 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:51:28,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:51:28,851 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 03:51:28,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-16 03:51:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:29,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 03:51:29,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:51:29,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:51:29,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:51:29,775 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:51:29,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604756326] [2021-12-16 03:51:29,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604756326] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:29,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:29,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:51:29,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531441933] [2021-12-16 03:51:29,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:29,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:51:29,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:51:29,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:51:29,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:29,840 INFO L87 Difference]: Start difference. First operand has 317 states, 239 states have (on average 1.4142259414225942) internal successors, (338), 250 states have internal predecessors, (338), 52 states have call successors, (52), 24 states have call predecessors, (52), 24 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:30,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:30,125 INFO L93 Difference]: Finished difference Result 736 states and 1044 transitions. [2021-12-16 03:51:30,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:51:30,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-16 03:51:30,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:30,141 INFO L225 Difference]: With dead ends: 736 [2021-12-16 03:51:30,141 INFO L226 Difference]: Without dead ends: 414 [2021-12-16 03:51:30,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:30,153 INFO L933 BasicCegarLoop]: 461 mSDtfsCounter, 142 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2021-12-16 03:51:30,158 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] [2021-12-16 03:51:30,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-12-16 03:51:30,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 399. [2021-12-16 03:51:30,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 306 states have (on average 1.4248366013071896) internal successors, (436), 316 states have internal predecessors, (436), 62 states have call successors, (62), 31 states have call predecessors, (62), 30 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2021-12-16 03:51:30,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 551 transitions. [2021-12-16 03:51:30,284 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 551 transitions. Word has length 17 [2021-12-16 03:51:30,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:30,285 INFO L470 AbstractCegarLoop]: Abstraction has 399 states and 551 transitions. [2021-12-16 03:51:30,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:30,285 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 551 transitions. [2021-12-16 03:51:30,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-16 03:51:30,288 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:30,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:30,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-16 03:51:30,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:51:30,508 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:30,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:30,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1255176370, now seen corresponding path program 1 times [2021-12-16 03:51:30,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:51:30,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067451402] [2021-12-16 03:51:30,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:30,510 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:51:30,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:51:30,511 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 03:51:30,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-16 03:51:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:31,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 03:51:31,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:51:31,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:51:31,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:51:31,228 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:51:31,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067451402] [2021-12-16 03:51:31,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067451402] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:31,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:31,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:51:31,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036690258] [2021-12-16 03:51:31,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:31,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:51:31,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:51:31,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:51:31,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:51:31,231 INFO L87 Difference]: Start difference. First operand 399 states and 551 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:31,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:31,423 INFO L93 Difference]: Finished difference Result 826 states and 1142 transitions. [2021-12-16 03:51:31,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:51:31,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-16 03:51:31,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:31,428 INFO L225 Difference]: With dead ends: 826 [2021-12-16 03:51:31,428 INFO L226 Difference]: Without dead ends: 430 [2021-12-16 03:51:31,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:51:31,431 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 41 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:31,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 1275 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:51:31,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-12-16 03:51:31,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 373. [2021-12-16 03:51:31,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 290 states have (on average 1.4379310344827587) internal successors, (417), 299 states have internal predecessors, (417), 56 states have call successors, (56), 27 states have call predecessors, (56), 26 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-12-16 03:51:31,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 520 transitions. [2021-12-16 03:51:31,461 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 520 transitions. Word has length 19 [2021-12-16 03:51:31,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:31,461 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 520 transitions. [2021-12-16 03:51:31,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:31,462 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 520 transitions. [2021-12-16 03:51:31,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-16 03:51:31,463 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:31,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:31,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-16 03:51:31,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:51:31,677 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:31,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:31,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1312434672, now seen corresponding path program 1 times [2021-12-16 03:51:31,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:51:31,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1367515107] [2021-12-16 03:51:31,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:31,681 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:51:31,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:51:31,682 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 03:51:31,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-16 03:51:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:32,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 03:51:32,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:51:32,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:51:32,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:51:32,462 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:51:32,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1367515107] [2021-12-16 03:51:32,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1367515107] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:32,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:32,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:51:32,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511354603] [2021-12-16 03:51:32,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:32,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:51:32,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:51:32,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:51:32,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:32,465 INFO L87 Difference]: Start difference. First operand 373 states and 520 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:32,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:32,583 INFO L93 Difference]: Finished difference Result 375 states and 521 transitions. [2021-12-16 03:51:32,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:51:32,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-16 03:51:32,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:32,586 INFO L225 Difference]: With dead ends: 375 [2021-12-16 03:51:32,587 INFO L226 Difference]: Without dead ends: 372 [2021-12-16 03:51:32,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:32,588 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 408 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:32,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 423 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:51:32,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-12-16 03:51:32,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2021-12-16 03:51:32,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 290 states have (on average 1.4344827586206896) internal successors, (416), 298 states have internal predecessors, (416), 55 states have call successors, (55), 27 states have call predecessors, (55), 26 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-12-16 03:51:32,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 518 transitions. [2021-12-16 03:51:32,609 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 518 transitions. Word has length 19 [2021-12-16 03:51:32,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:32,609 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 518 transitions. [2021-12-16 03:51:32,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:32,610 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 518 transitions. [2021-12-16 03:51:32,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-16 03:51:32,611 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:32,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:32,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-16 03:51:32,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:51:32,832 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:32,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:32,833 INFO L85 PathProgramCache]: Analyzing trace with hash 2030613114, now seen corresponding path program 1 times [2021-12-16 03:51:32,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:51:32,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423514086] [2021-12-16 03:51:32,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:32,834 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:51:32,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:51:32,835 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 03:51:32,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-16 03:51:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:33,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 03:51:33,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:51:33,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:51:33,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:51:33,555 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:51:33,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423514086] [2021-12-16 03:51:33,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423514086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:33,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:33,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:51:33,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129618893] [2021-12-16 03:51:33,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:33,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:51:33,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:51:33,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:51:33,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:33,557 INFO L87 Difference]: Start difference. First operand 372 states and 518 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:33,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:33,680 INFO L93 Difference]: Finished difference Result 379 states and 522 transitions. [2021-12-16 03:51:33,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:51:33,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-16 03:51:33,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:33,683 INFO L225 Difference]: With dead ends: 379 [2021-12-16 03:51:33,683 INFO L226 Difference]: Without dead ends: 375 [2021-12-16 03:51:33,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:33,684 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 391 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:33,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [391 Valid, 429 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:51:33,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-12-16 03:51:33,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2021-12-16 03:51:33,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 292 states have (on average 1.4246575342465753) internal successors, (416), 298 states have internal predecessors, (416), 53 states have call successors, (53), 28 states have call predecessors, (53), 27 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-12-16 03:51:33,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 516 transitions. [2021-12-16 03:51:33,705 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 516 transitions. Word has length 20 [2021-12-16 03:51:33,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:33,705 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 516 transitions. [2021-12-16 03:51:33,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:33,706 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 516 transitions. [2021-12-16 03:51:33,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-16 03:51:33,707 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:33,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:33,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-16 03:51:33,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:51:33,928 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:33,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:33,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1475654093, now seen corresponding path program 1 times [2021-12-16 03:51:33,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:51:33,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40149836] [2021-12-16 03:51:33,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:33,930 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:51:33,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:51:33,931 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 03:51:33,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-16 03:51:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:34,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 03:51:34,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:51:34,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:51:34,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:51:34,628 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:51:34,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40149836] [2021-12-16 03:51:34,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40149836] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:34,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:34,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:51:34,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663629767] [2021-12-16 03:51:34,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:34,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:51:34,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:51:34,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:51:34,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:34,630 INFO L87 Difference]: Start difference. First operand 373 states and 516 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:34,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:34,749 INFO L93 Difference]: Finished difference Result 375 states and 517 transitions. [2021-12-16 03:51:34,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:51:34,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-16 03:51:34,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:34,753 INFO L225 Difference]: With dead ends: 375 [2021-12-16 03:51:34,754 INFO L226 Difference]: Without dead ends: 372 [2021-12-16 03:51:34,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:34,755 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 400 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:34,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 417 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:51:34,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-12-16 03:51:34,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2021-12-16 03:51:34,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 292 states have (on average 1.4212328767123288) internal successors, (415), 297 states have internal predecessors, (415), 52 states have call successors, (52), 28 states have call predecessors, (52), 27 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2021-12-16 03:51:34,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 514 transitions. [2021-12-16 03:51:34,793 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 514 transitions. Word has length 21 [2021-12-16 03:51:34,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:34,794 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 514 transitions. [2021-12-16 03:51:34,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:34,794 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 514 transitions. [2021-12-16 03:51:34,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-16 03:51:34,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:34,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:34,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-16 03:51:35,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:51:35,020 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:35,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:35,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1499217053, now seen corresponding path program 1 times [2021-12-16 03:51:35,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:51:35,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991691510] [2021-12-16 03:51:35,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:35,022 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:51:35,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:51:35,023 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 03:51:35,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-16 03:51:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:35,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 03:51:35,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:51:35,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:51:35,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:51:35,676 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:51:35,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991691510] [2021-12-16 03:51:35,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991691510] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:35,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:35,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:51:35,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918291301] [2021-12-16 03:51:35,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:35,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:51:35,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:51:35,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:51:35,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:35,678 INFO L87 Difference]: Start difference. First operand 372 states and 514 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:35,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:35,832 INFO L93 Difference]: Finished difference Result 552 states and 772 transitions. [2021-12-16 03:51:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:51:35,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-12-16 03:51:35,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:35,836 INFO L225 Difference]: With dead ends: 552 [2021-12-16 03:51:35,836 INFO L226 Difference]: Without dead ends: 548 [2021-12-16 03:51:35,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:35,837 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 152 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:35,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 826 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:51:35,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2021-12-16 03:51:35,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 546. [2021-12-16 03:51:35,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 439 states have (on average 1.4464692482915718) internal successors, (635), 445 states have internal predecessors, (635), 68 states have call successors, (68), 40 states have call predecessors, (68), 38 states have return successors, (63), 61 states have call predecessors, (63), 63 states have call successors, (63) [2021-12-16 03:51:35,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 766 transitions. [2021-12-16 03:51:35,864 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 766 transitions. Word has length 22 [2021-12-16 03:51:35,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:35,865 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 766 transitions. [2021-12-16 03:51:35,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:35,865 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 766 transitions. [2021-12-16 03:51:35,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-16 03:51:35,866 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:35,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:35,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-16 03:51:36,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:51:36,085 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:36,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:36,086 INFO L85 PathProgramCache]: Analyzing trace with hash -769053066, now seen corresponding path program 1 times [2021-12-16 03:51:36,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:51:36,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389557257] [2021-12-16 03:51:36,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:36,087 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:51:36,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:51:36,089 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 03:51:36,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-16 03:51:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:36,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 03:51:36,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:51:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 03:51:36,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:51:36,777 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:51:36,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389557257] [2021-12-16 03:51:36,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389557257] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:36,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:36,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:51:36,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235513939] [2021-12-16 03:51:36,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:36,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:51:36,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:51:36,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:51:36,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:36,778 INFO L87 Difference]: Start difference. First operand 546 states and 766 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:36,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:36,867 INFO L93 Difference]: Finished difference Result 548 states and 767 transitions. [2021-12-16 03:51:36,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:51:36,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-12-16 03:51:36,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:36,884 INFO L225 Difference]: With dead ends: 548 [2021-12-16 03:51:36,884 INFO L226 Difference]: Without dead ends: 527 [2021-12-16 03:51:36,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:36,886 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 396 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:36,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [396 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:51:36,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2021-12-16 03:51:36,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2021-12-16 03:51:36,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 425 states have (on average 1.4470588235294117) internal successors, (615), 430 states have internal predecessors, (615), 64 states have call successors, (64), 39 states have call predecessors, (64), 37 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2021-12-16 03:51:36,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 739 transitions. [2021-12-16 03:51:36,913 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 739 transitions. Word has length 23 [2021-12-16 03:51:36,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:36,913 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 739 transitions. [2021-12-16 03:51:36,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:51:36,914 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 739 transitions. [2021-12-16 03:51:36,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-16 03:51:36,915 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:36,915 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:36,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-12-16 03:51:37,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:51:37,130 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:37,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:37,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1664175646, now seen corresponding path program 1 times [2021-12-16 03:51:37,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:51:37,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415119844] [2021-12-16 03:51:37,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:37,133 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:51:37,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:51:37,135 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 03:51:37,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-16 03:51:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:37,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 03:51:37,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:51:37,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-16 03:51:37,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:51:37,983 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:51:37,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415119844] [2021-12-16 03:51:37,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415119844] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:37,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:37,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:51:37,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919509138] [2021-12-16 03:51:37,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:37,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:51:37,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:51:37,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:51:37,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:37,985 INFO L87 Difference]: Start difference. First operand 527 states and 739 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-16 03:51:38,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:38,112 INFO L93 Difference]: Finished difference Result 1050 states and 1474 transitions. [2021-12-16 03:51:38,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:51:38,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2021-12-16 03:51:38,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:38,116 INFO L225 Difference]: With dead ends: 1050 [2021-12-16 03:51:38,116 INFO L226 Difference]: Without dead ends: 526 [2021-12-16 03:51:38,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:38,118 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 384 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:38,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 690 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:51:38,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2021-12-16 03:51:38,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2021-12-16 03:51:38,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 425 states have (on average 1.4423529411764706) internal successors, (613), 429 states have internal predecessors, (613), 63 states have call successors, (63), 39 states have call predecessors, (63), 37 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2021-12-16 03:51:38,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 734 transitions. [2021-12-16 03:51:38,146 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 734 transitions. Word has length 62 [2021-12-16 03:51:38,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:38,146 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 734 transitions. [2021-12-16 03:51:38,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-16 03:51:38,147 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 734 transitions. [2021-12-16 03:51:38,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-16 03:51:38,149 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:38,149 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:38,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-12-16 03:51:38,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:51:38,364 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:38,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:38,364 INFO L85 PathProgramCache]: Analyzing trace with hash -656103517, now seen corresponding path program 1 times [2021-12-16 03:51:38,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:51:38,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513460206] [2021-12-16 03:51:38,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:38,366 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:51:38,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:51:38,367 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 03:51:38,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-16 03:51:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:51:39,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 03:51:39,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:51:39,154 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-16 03:51:39,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:51:39,154 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:51:39,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513460206] [2021-12-16 03:51:39,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513460206] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:51:39,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:51:39,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:51:39,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427507675] [2021-12-16 03:51:39,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:51:39,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:51:39,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:51:39,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:51:39,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:39,157 INFO L87 Difference]: Start difference. First operand 526 states and 734 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-16 03:51:39,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:51:39,267 INFO L93 Difference]: Finished difference Result 528 states and 735 transitions. [2021-12-16 03:51:39,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:51:39,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2021-12-16 03:51:39,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:51:39,270 INFO L225 Difference]: With dead ends: 528 [2021-12-16 03:51:39,270 INFO L226 Difference]: Without dead ends: 525 [2021-12-16 03:51:39,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:51:39,271 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:51:39,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 809 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:51:39,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2021-12-16 03:51:39,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2021-12-16 03:51:39,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 425 states have (on average 1.44) internal successors, (612), 428 states have internal predecessors, (612), 62 states have call successors, (62), 39 states have call predecessors, (62), 37 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2021-12-16 03:51:39,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 732 transitions. [2021-12-16 03:51:39,294 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 732 transitions. Word has length 71 [2021-12-16 03:51:39,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:51:39,294 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 732 transitions. [2021-12-16 03:51:39,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-16 03:51:39,295 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 732 transitions. [2021-12-16 03:51:39,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-16 03:51:39,296 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:51:39,297 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 03:51:39,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-12-16 03:51:39,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:51:39,521 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:51:39,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:51:39,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1176347224, now seen corresponding path program 1 times [2021-12-16 03:51:39,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:51:39,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072410537] [2021-12-16 03:51:39,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:51:39,522 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:51:39,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:51:39,523 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 03:51:39,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-16 03:52:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 03:52:04,082 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.