./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.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 463dbca1530ea0e57c159e9405d50f794488f63283b3e27908f44b92b1921358 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 03:22:07,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:22:07,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:22:07,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:22:07,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:22:07,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:22:07,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:22:07,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:22:07,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:22:07,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:22:07,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:22:07,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:22:07,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:22:07,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:22:07,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:22:07,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:22:07,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:22:07,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:22:07,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:22:07,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:22:07,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:22:07,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:22:07,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:22:07,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:22:07,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:22:07,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:22:07,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:22:07,770 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:22:07,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:22:07,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:22:07,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:22:07,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:22:07,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:22:07,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:22:07,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:22:07,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:22:07,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:22:07,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:22:07,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:22:07,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:22:07,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:22:07,778 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 03:22:07,797 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:22:07,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:22:07,801 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 03:22:07,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 03:22:07,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 03:22:07,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 03:22:07,802 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 03:22:07,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:22:07,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:22:07,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:22:07,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:22:07,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:22:07,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:22:07,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:22:07,805 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:22:07,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:22:07,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:22:07,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:22:07,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:22:07,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:22:07,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:22:07,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:22:07,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:22:07,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 03:22:07,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:22:07,806 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 03:22:07,806 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 03:22:07,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:22:07,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:22:07,808 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 463dbca1530ea0e57c159e9405d50f794488f63283b3e27908f44b92b1921358 [2021-11-03 03:22:08,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:22:08,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:22:08,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:22:08,047 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:22:08,048 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:22:08,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-03 03:22:08,105 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ef79ef27/ce2b82d4f8824bcd986553df6022e812/FLAG1bb5acee5 [2021-11-03 03:22:08,713 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:22:08,714 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-03 03:22:08,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ef79ef27/ce2b82d4f8824bcd986553df6022e812/FLAG1bb5acee5 [2021-11-03 03:22:08,856 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ef79ef27/ce2b82d4f8824bcd986553df6022e812 [2021-11-03 03:22:08,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:22:08,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:22:08,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:22:08,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:22:08,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:22:08,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:22:08" (1/1) ... [2021-11-03 03:22:08,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78975d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:22:08, skipping insertion in model container [2021-11-03 03:22:08,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:22:08" (1/1) ... [2021-11-03 03:22:08,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:22:08,971 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:22:12,332 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2021-11-03 03:22:12,335 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2021-11-03 03:22:12,339 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2021-11-03 03:22:12,339 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2021-11-03 03:22:12,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:22:12,410 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:22:12,686 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2021-11-03 03:22:12,686 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2021-11-03 03:22:12,686 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2021-11-03 03:22:12,687 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2021-11-03 03:22:12,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:22:12,876 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:22:12,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:22:12 WrapperNode [2021-11-03 03:22:12,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:22:12,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:22:12,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:22:12,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:22:12,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:22:12" (1/1) ... [2021-11-03 03:22:12,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:22:12" (1/1) ... [2021-11-03 03:22:15,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:22:15,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:22:15,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:22:15,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:22:15,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:22:12" (1/1) ... [2021-11-03 03:22:15,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:22:12" (1/1) ... [2021-11-03 03:22:16,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:22:12" (1/1) ... [2021-11-03 03:22:16,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:22:12" (1/1) ... [2021-11-03 03:22:17,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:22:12" (1/1) ... [2021-11-03 03:22:17,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:22:12" (1/1) ... [2021-11-03 03:22:17,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:22:12" (1/1) ... [2021-11-03 03:22:18,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:22:18,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:22:18,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:22:18,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:22:18,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:22:12" (1/1) ... [2021-11-03 03:22:18,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:22:18,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 03:22:18,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:22:18,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:22:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_121 [2021-11-03 03:22:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_121 [2021-11-03 03:22:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2021-11-03 03:22:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2021-11-03 03:22:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_147 [2021-11-03 03:22:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_147 [2021-11-03 03:22:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:22:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-03 03:22:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-03 03:22:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 03:22:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2021-11-03 03:22:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2021-11-03 03:22:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:22:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-03 03:22:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-03 03:22:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:22:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-03 03:22:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure cas_link_timer [2021-11-03 03:22:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_link_timer [2021-11-03 03:22:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-03 03:22:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-03 03:22:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:22:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:22:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 03:22:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 03:22:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:22:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:22:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2021-11-03 03:22:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2021-11-03 03:22:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:22:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2021-11-03 03:22:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2021-11-03 03:22:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 03:22:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 03:27:12,246 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_14_returnLabel: main_#res := 0; [2021-11-03 03:27:12,247 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 03:27:12,249 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L14685: #t~ret2304 := main_#res; [2021-11-03 03:27:12,250 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0.offset; [2021-11-03 03:27:12,351 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:27:12,351 INFO L299 CfgBuilder]: Removed 27494 assume(true) statements. [2021-11-03 03:27:12,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:27:12 BoogieIcfgContainer [2021-11-03 03:27:12,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:27:12,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:27:12,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:27:12,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:27:12,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:22:08" (1/3) ... [2021-11-03 03:27:12,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3248a277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:27:12, skipping insertion in model container [2021-11-03 03:27:12,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:22:12" (2/3) ... [2021-11-03 03:27:12,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3248a277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:27:12, skipping insertion in model container [2021-11-03 03:27:12,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:27:12" (3/3) ... [2021-11-03 03:27:12,379 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-03 03:27:12,382 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:27:12,383 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 718 error locations. [2021-11-03 03:27:12,459 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:27:12,463 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:27:12,463 INFO L340 AbstractCegarLoop]: Starting to check reachability of 718 error locations. [2021-11-03 03:27:12,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 24991 states, 24222 states have (on average 1.3423747006853275) internal successors, (32515), 24939 states have internal predecessors, (32515), 42 states have call successors, (42), 9 states have call predecessors, (42), 9 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-03 03:27:12,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-03 03:27:12,670 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 03:27:12,670 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, 1] [2021-11-03 03:27:12,670 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr658ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-03 03:27:12,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:27:12,674 INFO L85 PathProgramCache]: Analyzing trace with hash -531829004, now seen corresponding path program 1 times [2021-11-03 03:27:12,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 03:27:12,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384253707] [2021-11-03 03:27:12,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:27:12,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:27:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:27:13,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:27:13,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 03:27:13,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384253707] [2021-11-03 03:27:13,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384253707] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:27:13,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:27:13,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 03:27:13,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591628984] [2021-11-03 03:27:13,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:27:13,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 03:27:13,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:27:13,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:27:13,371 INFO L87 Difference]: Start difference. First operand has 24991 states, 24222 states have (on average 1.3423747006853275) internal successors, (32515), 24939 states have internal predecessors, (32515), 42 states have call successors, (42), 9 states have call predecessors, (42), 9 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:27:15,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:28:38,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:29:32,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:29:32,622 INFO L93 Difference]: Finished difference Result 61573 states and 80362 transitions. [2021-11-03 03:29:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:29:32,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-03 03:29:32,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:29:32,749 INFO L225 Difference]: With dead ends: 61573 [2021-11-03 03:29:32,749 INFO L226 Difference]: Without dead ends: 35355 [2021-11-03 03:29:32,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.58ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:29:32,806 INFO L933 BasicCegarLoop]: 1006 mSDtfsCounter, 29867 mSDsluCounter, 46957 mSDsCounter, 0 mSdLazyCounter, 76256 mSolverCounterSat, 146 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123860.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29867 SdHoareTripleChecker+Valid, 2534 SdHoareTripleChecker+Invalid, 76404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 372.05ms SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 76256 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 135500.68ms IncrementalHoareTripleChecker+Time [2021-11-03 03:29:32,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29867 Valid, 2534 Invalid, 76404 Unknown, 0 Unchecked, 372.05ms Time], IncrementalHoareTripleChecker [146 Valid, 76256 Invalid, 2 Unknown, 0 Unchecked, 135500.68ms Time] [2021-11-03 03:29:32,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35355 states. [2021-11-03 03:29:33,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35355 to 30409. [2021-11-03 03:29:33,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30409 states, 29607 states have (on average 1.274597223629547) internal successors, (37737), 30306 states have internal predecessors, (37737), 66 states have call successors, (66), 18 states have call predecessors, (66), 18 states have return successors, (132), 84 states have call predecessors, (132), 66 states have call successors, (132) [2021-11-03 03:29:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30409 states to 30409 states and 37935 transitions. [2021-11-03 03:29:33,568 INFO L78 Accepts]: Start accepts. Automaton has 30409 states and 37935 transitions. Word has length 24 [2021-11-03 03:29:33,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:29:33,569 INFO L470 AbstractCegarLoop]: Abstraction has 30409 states and 37935 transitions. [2021-11-03 03:29:33,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:29:33,570 INFO L276 IsEmpty]: Start isEmpty. Operand 30409 states and 37935 transitions. [2021-11-03 03:29:33,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-03 03:29:33,571 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 03:29:33,571 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, 1, 1, 1] [2021-11-03 03:29:33,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 03:29:33,572 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr659ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-03 03:29:33,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:29:33,574 INFO L85 PathProgramCache]: Analyzing trace with hash 15956375, now seen corresponding path program 1 times [2021-11-03 03:29:33,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 03:29:33,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323822181] [2021-11-03 03:29:33,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:29:33,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:29:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:29:33,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:29:33,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 03:29:33,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323822181] [2021-11-03 03:29:33,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323822181] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:29:33,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:29:33,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 03:29:33,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860304821] [2021-11-03 03:29:33,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:29:33,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 03:29:33,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:29:33,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:29:33,930 INFO L87 Difference]: Start difference. First operand 30409 states and 37935 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:29:36,010 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:30:48,309 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:33:00,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:33:00,213 INFO L93 Difference]: Finished difference Result 60783 states and 75832 transitions. [2021-11-03 03:33:00,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:33:00,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-03 03:33:00,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:33:00,374 INFO L225 Difference]: With dead ends: 60783 [2021-11-03 03:33:00,374 INFO L226 Difference]: Without dead ends: 60779 [2021-11-03 03:33:00,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.57ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:33:00,395 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 29149 mSDsluCounter, 58270 mSDsCounter, 0 mSdLazyCounter, 87252 mSolverCounterSat, 74 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 176726.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29149 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 87328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 372.98ms SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 87252 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 201919.97ms IncrementalHoareTripleChecker+Time [2021-11-03 03:33:00,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29149 Valid, 336 Invalid, 87328 Unknown, 0 Unchecked, 372.98ms Time], IncrementalHoareTripleChecker [74 Valid, 87252 Invalid, 2 Unknown, 0 Unchecked, 201919.97ms Time] [2021-11-03 03:33:00,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60779 states. [2021-11-03 03:33:01,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60779 to 59210. [2021-11-03 03:33:01,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59210 states, 58324 states have (on average 1.2779987655167684) internal successors, (74538), 59005 states have internal predecessors, (74538), 132 states have call successors, (132), 36 states have call predecessors, (132), 36 states have return successors, (264), 168 states have call predecessors, (264), 132 states have call successors, (264) [2021-11-03 03:33:01,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59210 states to 59210 states and 74934 transitions. [2021-11-03 03:33:01,930 INFO L78 Accepts]: Start accepts. Automaton has 59210 states and 74934 transitions. Word has length 26 [2021-11-03 03:33:01,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:33:01,931 INFO L470 AbstractCegarLoop]: Abstraction has 59210 states and 74934 transitions. [2021-11-03 03:33:01,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:33:01,931 INFO L276 IsEmpty]: Start isEmpty. Operand 59210 states and 74934 transitions. [2021-11-03 03:33:01,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-03 03:33:01,932 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 03:33:01,932 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, 1, 1, 1, 1, 1] [2021-11-03 03:33:01,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 03:33:01,934 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr660ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-03 03:33:01,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:33:01,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1843271494, now seen corresponding path program 1 times [2021-11-03 03:33:01,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 03:33:01,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523283431] [2021-11-03 03:33:01,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:33:01,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:33:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:33:02,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:33:02,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 03:33:02,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523283431] [2021-11-03 03:33:02,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523283431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:33:02,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:33:02,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 03:33:02,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224969723] [2021-11-03 03:33:02,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:33:02,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 03:33:02,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:33:02,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:33:02,375 INFO L87 Difference]: Start difference. First operand 59210 states and 74934 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:33:04,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:34:49,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:34:56,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 03:35:22,872 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15