./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0 --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-dev-aef121e [2021-11-22 15:37:10,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:37:10,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:37:10,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:37:10,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:37:10,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:37:10,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:37:10,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:37:10,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:37:10,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:37:10,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:37:10,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:37:10,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:37:10,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:37:10,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:37:10,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:37:10,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:37:10,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:37:10,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:37:10,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:37:10,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:37:10,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:37:10,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:37:10,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:37:10,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:37:10,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:37:10,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:37:10,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:37:10,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:37:10,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:37:10,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:37:10,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:37:10,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:37:10,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:37:10,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:37:10,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:37:10,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:37:10,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:37:10,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:37:10,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:37:10,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:37:10,651 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 15:37:10,704 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:37:10,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:37:10,705 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:37:10,705 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:37:10,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:37:10,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:37:10,708 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:37:10,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:37:10,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:37:10,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:37:10,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 15:37:10,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 15:37:10,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 15:37:10,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:37:10,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:37:10,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 15:37:10,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:37:10,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:37:10,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 15:37:10,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:37:10,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:37:10,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 15:37:10,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 15:37:10,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:37:10,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 15:37:10,713 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 15:37:10,713 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 15:37:10,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 15:37:10,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:37:10,714 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 463dbca1530ea0e57c159e9405d50f794488f63283b3e27908f44b92b1921358 [2021-11-22 15:37:11,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:37:11,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:37:11,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:37:11,155 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:37:11,156 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:37:11,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-22 15:37:11,268 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0/data/a6e72df3d/b64d3c9ba54e422e87c1c5da23e3bda1/FLAG83dfa16a3 [2021-11-22 15:37:12,512 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:37:12,514 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-22 15:37:12,603 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0/data/a6e72df3d/b64d3c9ba54e422e87c1c5da23e3bda1/FLAG83dfa16a3 [2021-11-22 15:37:12,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0/data/a6e72df3d/b64d3c9ba54e422e87c1c5da23e3bda1 [2021-11-22 15:37:12,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:37:12,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:37:12,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:37:12,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:37:12,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:37:12,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:37:12" (1/1) ... [2021-11-22 15:37:12,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200e866e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:12, skipping insertion in model container [2021-11-22 15:37:12,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:37:12" (1/1) ... [2021-11-22 15:37:12,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:37:12,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:37:19,460 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2021-11-22 15:37:19,470 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2021-11-22 15:37:19,471 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2021-11-22 15:37:19,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2021-11-22 15:37:19,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:37:19,584 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:37:20,216 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487146,487159] [2021-11-22 15:37:20,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487315,487328] [2021-11-22 15:37:20,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487482,487495] [2021-11-22 15:37:20,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i[487650,487663] [2021-11-22 15:37:20,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:37:20,791 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:37:20,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:20 WrapperNode [2021-11-22 15:37:20,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:37:20,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:37:20,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:37:20,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:37:20,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:20" (1/1) ... [2021-11-22 15:37:21,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:20" (1/1) ... [2021-11-22 15:37:25,396 INFO L137 Inliner]: procedures = 676, calls = 4210, calls flagged for inlining = 1638, calls inlined = 13721, statements flattened = 126227 [2021-11-22 15:37:25,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:37:25,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:37:25,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:37:25,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:37:25,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:20" (1/1) ... [2021-11-22 15:37:25,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:20" (1/1) ... [2021-11-22 15:37:26,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:20" (1/1) ... [2021-11-22 15:37:26,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:20" (1/1) ... [2021-11-22 15:37:29,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:20" (1/1) ... [2021-11-22 15:37:29,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:20" (1/1) ... [2021-11-22 15:37:29,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:20" (1/1) ... [2021-11-22 15:37:30,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:37:30,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:37:30,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:37:30,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:37:30,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:20" (1/1) ... [2021-11-22 15:37:30,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 15:37:30,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:37:30,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 15:37:30,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83cff4e9-a244-4e85-af11-6d2881668d4f/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 15:37:30,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_121 [2021-11-22 15:37:30,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_121 [2021-11-22 15:37:30,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2021-11-22 15:37:30,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2021-11-22 15:37:30,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_147 [2021-11-22 15:37:30,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_147 [2021-11-22 15:37:30,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 15:37:30,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 15:37:30,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 15:37:30,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 15:37:30,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2021-11-22 15:37:30,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2021-11-22 15:37:30,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 15:37:30,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-22 15:37:30,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-22 15:37:30,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:37:30,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 15:37:30,964 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 15:37:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure cas_link_timer [2021-11-22 15:37:30,965 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_link_timer [2021-11-22 15:37:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-22 15:37:30,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-22 15:37:30,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:37:30,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:37:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 15:37:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 15:37:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 15:37:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 15:37:30,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2021-11-22 15:37:30,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2021-11-22 15:37:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 15:37:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure cas_post_rxds_ringN [2021-11-22 15:37:30,968 INFO L138 BoogieDeclarations]: Found implementation of procedure cas_post_rxds_ringN [2021-11-22 15:37:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 15:37:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:37:32,667 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:37:32,669 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:43:11,703 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_pci_pci_instance_2_switch_break#1: call ULTIMATE.dealloc(ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.offset);havoc ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.base, ldv_pci_pci_instance_2_~#ldv_2_resource_pm_message~0#1.offset; [2021-11-22 15:43:11,705 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-22 15:43:11,708 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L14685: #t~ret2152#1 := main_#res#1;assume { :end_inline_main } true; [2021-11-22 15:43:11,713 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_14_returnLabel#1: assume { :end_inline_ldv_entry_EMGentry_14 } true;main_#res#1 := 0; [2021-11-22 15:43:11,780 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:43:11,925 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:43:11,926 INFO L301 CfgBuilder]: Removed 56 assume(true) statements. [2021-11-22 15:43:11,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:43:11 BoogieIcfgContainer [2021-11-22 15:43:11,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:43:11,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 15:43:11,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 15:43:11,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 15:43:11,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:37:12" (1/3) ... [2021-11-22 15:43:11,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f114bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:43:11, skipping insertion in model container [2021-11-22 15:43:11,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:37:20" (2/3) ... [2021-11-22 15:43:11,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f114bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:43:11, skipping insertion in model container [2021-11-22 15:43:11,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:43:11" (3/3) ... [2021-11-22 15:43:11,964 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-sun-cassini.cil.i [2021-11-22 15:43:11,971 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 15:43:11,972 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 718 error locations. [2021-11-22 15:43:12,126 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 15:43:12,134 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 [2021-11-22 15:43:12,134 INFO L340 AbstractCegarLoop]: Starting to check reachability of 718 error locations. [2021-11-22 15:43:12,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 27245 states, 26476 states have (on average 1.313227073576069) internal successors, (34769), 27193 states have internal predecessors, (34769), 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) [2021-11-22 15:43:12,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-22 15:43:12,792 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:43:12,793 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] [2021-11-22 15:43:12,793 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)] === [2021-11-22 15:43:12,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:43:12,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1026585864, now seen corresponding path program 1 times [2021-11-22 15:43:12,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:43:12,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523350993] [2021-11-22 15:43:12,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:43:12,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:43:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:43:14,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:43:14,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:43:14,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523350993] [2021-11-22 15:43:14,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523350993] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:43:14,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:43:14,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:43:14,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143700450] [2021-11-22 15:43:14,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:43:14,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:43:14,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:43:14,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:43:14,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:43:14,134 INFO L87 Difference]: Start difference. First operand has 27245 states, 26476 states have (on average 1.313227073576069) internal successors, (34769), 27193 states have internal predecessors, (34769), 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) [2021-11-22 15:43:19,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:43:19,548 INFO L93 Difference]: Finished difference Result 67061 states and 85851 transitions. [2021-11-22 15:43:19,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 15:43:19,551 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 [2021-11-22 15:43:19,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:43:19,855 INFO L225 Difference]: With dead ends: 67061 [2021-11-22 15:43:19,855 INFO L226 Difference]: Without dead ends: 38578 [2021-11-22 15:43:19,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:43:19,968 INFO L933 BasicCegarLoop]: 33405 mSDtfsCounter, 31981 mSDsluCounter, 50346 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31981 SdHoareTripleChecker+Valid, 83751 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-22 15:43:19,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31981 Valid, 83751 Invalid, 836 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [146 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-22 15:43:20,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38578 states. [2021-11-22 15:43:21,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38578 to 33301. [2021-11-22 15:43:21,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33301 states, 32499 states have (on average 1.2501923136096496) internal successors, (40630), 33198 states have internal predecessors, (40630), 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) [2021-11-22 15:43:21,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33301 states to 33301 states and 40828 transitions. [2021-11-22 15:43:21,800 INFO L78 Accepts]: Start accepts. Automaton has 33301 states and 40828 transitions. Word has length 24 [2021-11-22 15:43:21,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:43:21,800 INFO L470 AbstractCegarLoop]: Abstraction has 33301 states and 40828 transitions. [2021-11-22 15:43:21,802 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) [2021-11-22 15:43:21,802 INFO L276 IsEmpty]: Start isEmpty. Operand 33301 states and 40828 transitions. [2021-11-22 15:43:21,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-22 15:43:21,804 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:43:21,804 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] [2021-11-22 15:43:21,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 15:43:21,804 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)] === [2021-11-22 15:43:21,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:43:21,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1296055739, now seen corresponding path program 1 times [2021-11-22 15:43:21,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:43:21,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084373541] [2021-11-22 15:43:21,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:43:21,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:43:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:43:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:43:22,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:43:22,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084373541] [2021-11-22 15:43:22,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084373541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:43:22,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:43:22,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:43:22,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445666922] [2021-11-22 15:43:22,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:43:22,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:43:22,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:43:22,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:43:22,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:43:22,756 INFO L87 Difference]: Start difference. First operand 33301 states and 40828 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) [2021-11-22 15:43:24,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:43:24,343 INFO L93 Difference]: Finished difference Result 33301 states and 40828 transitions. [2021-11-22 15:43:24,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:43:24,344 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 [2021-11-22 15:43:24,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:43:24,458 INFO L225 Difference]: With dead ends: 33301 [2021-11-22 15:43:24,459 INFO L226 Difference]: Without dead ends: 33297 [2021-11-22 15:43:24,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:43:24,472 INFO L933 BasicCegarLoop]: 31406 mSDtfsCounter, 31387 mSDsluCounter, 31300 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31387 SdHoareTripleChecker+Valid, 62706 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:43:24,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31387 Valid, 62706 Invalid, 114 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 15:43:24,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33297 states. [2021-11-22 15:43:25,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33297 to 33297. [2021-11-22 15:43:25,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33297 states, 32497 states have (on average 1.2501461673385235) internal successors, (40626), 33194 states have internal predecessors, (40626), 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) [2021-11-22 15:43:25,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33297 states to 33297 states and 40824 transitions. [2021-11-22 15:43:25,995 INFO L78 Accepts]: Start accepts. Automaton has 33297 states and 40824 transitions. Word has length 26 [2021-11-22 15:43:25,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:43:25,996 INFO L470 AbstractCegarLoop]: Abstraction has 33297 states and 40824 transitions. [2021-11-22 15:43:25,997 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) [2021-11-22 15:43:25,997 INFO L276 IsEmpty]: Start isEmpty. Operand 33297 states and 40824 transitions. [2021-11-22 15:43:25,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-22 15:43:25,999 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:43:25,999 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] [2021-11-22 15:43:25,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 15:43:26,000 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)] === [2021-11-22 15:43:26,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:43:26,003 INFO L85 PathProgramCache]: Analyzing trace with hash -28357378, now seen corresponding path program 1 times [2021-11-22 15:43:26,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:43:26,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552900291] [2021-11-22 15:43:26,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:43:26,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:43:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:43:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:43:26,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:43:26,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552900291] [2021-11-22 15:43:26,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552900291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:43:26,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:43:26,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:43:26,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11974598] [2021-11-22 15:43:26,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:43:26,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:43:26,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:43:26,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:43:26,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:43:26,577 INFO L87 Difference]: Start difference. First operand 33297 states and 40824 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) [2021-11-22 15:43:28,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:43:28,496 INFO L93 Difference]: Finished difference Result 33297 states and 40824 transitions. [2021-11-22 15:43:28,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:43:28,497 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 28 [2021-11-22 15:43:28,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:43:28,621 INFO L225 Difference]: With dead ends: 33297 [2021-11-22 15:43:28,622 INFO L226 Difference]: Without dead ends: 33293 [2021-11-22 15:43:28,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:43:28,637 INFO L933 BasicCegarLoop]: 31402 mSDtfsCounter, 31381 mSDsluCounter, 31298 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31381 SdHoareTripleChecker+Valid, 62700 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:43:28,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31381 Valid, 62700 Invalid, 112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 15:43:28,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33293 states. [2021-11-22 15:43:29,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33293 to 33293. [2021-11-22 15:43:29,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33293 states, 32495 states have (on average 1.2501000153869826) internal successors, (40622), 33190 states have internal predecessors, (40622), 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) [2021-11-22 15:43:30,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33293 states to 33293 states and 40820 transitions. [2021-11-22 15:43:30,059 INFO L78 Accepts]: Start accepts. Automaton has 33293 states and 40820 transitions. Word has length 28 [2021-11-22 15:43:30,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:43:30,060 INFO L470 AbstractCegarLoop]: Abstraction has 33293 states and 40820 transitions. [2021-11-22 15:43:30,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-22 15:43:30,061 INFO L276 IsEmpty]: Start isEmpty. Operand 33293 states and 40820 transitions. [2021-11-22 15:43:30,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-22 15:43:30,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:43:30,063 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, 1, 1] [2021-11-22 15:43:30,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 15:43:30,064 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr661ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-22 15:43:30,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:43:30,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1479042879, now seen corresponding path program 1 times [2021-11-22 15:43:30,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:43:30,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73044707] [2021-11-22 15:43:30,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:43:30,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:43:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:43:30,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:43:30,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:43:30,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73044707] [2021-11-22 15:43:30,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73044707] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:43:30,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:43:30,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:43:30,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102806653] [2021-11-22 15:43:30,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:43:30,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:43:30,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:43:30,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:43:30,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:43:30,544 INFO L87 Difference]: Start difference. First operand 33293 states and 40820 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-22 15:43:32,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 15:43:32,375 INFO L93 Difference]: Finished difference Result 33293 states and 40820 transitions. [2021-11-22 15:43:32,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 15:43:32,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2021-11-22 15:43:32,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 15:43:32,481 INFO L225 Difference]: With dead ends: 33293 [2021-11-22 15:43:32,481 INFO L226 Difference]: Without dead ends: 33289 [2021-11-22 15:43:32,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-22 15:43:32,493 INFO L933 BasicCegarLoop]: 31398 mSDtfsCounter, 31375 mSDsluCounter, 31296 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31375 SdHoareTripleChecker+Valid, 62694 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 15:43:32,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31375 Valid, 62694 Invalid, 110 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [38 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 15:43:32,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33289 states. [2021-11-22 15:43:33,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33289 to 33289. [2021-11-22 15:43:33,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33289 states, 32493 states have (on average 1.2500538577539777) internal successors, (40618), 33186 states have internal predecessors, (40618), 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) [2021-11-22 15:43:33,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33289 states to 33289 states and 40816 transitions. [2021-11-22 15:43:33,947 INFO L78 Accepts]: Start accepts. Automaton has 33289 states and 40816 transitions. Word has length 30 [2021-11-22 15:43:33,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 15:43:33,948 INFO L470 AbstractCegarLoop]: Abstraction has 33289 states and 40816 transitions. [2021-11-22 15:43:33,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-22 15:43:33,949 INFO L276 IsEmpty]: Start isEmpty. Operand 33289 states and 40816 transitions. [2021-11-22 15:43:33,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-22 15:43:33,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 15:43:33,957 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, 1, 1, 1, 1] [2021-11-22 15:43:33,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 15:43:33,957 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr662ASSERT_VIOLATIONERROR_FUNCTION === [cas_link_timerErr0ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr1ASSERT_VIOLATIONERROR_FUNCTION, cas_link_timerErr2ASSERT_VIOLATIONERROR_FUNCTION (and 715 more)] === [2021-11-22 15:43:33,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:43:33,965 INFO L85 PathProgramCache]: Analyzing trace with hash 276562180, now seen corresponding path program 1 times [2021-11-22 15:43:33,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:43:33,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055451886] [2021-11-22 15:43:33,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:43:33,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:43:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:43:34,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:43:34,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 15:43:34,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055451886] [2021-11-22 15:43:34,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055451886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 15:43:34,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 15:43:34,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 15:43:34,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590497493] [2021-11-22 15:43:34,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 15:43:34,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 15:43:34,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 15:43:34,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 15:43:34,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 15:43:34,485 INFO L87 Difference]: Start difference. First operand 33289 states and 40816 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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)