./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU --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 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:12:47,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:12:47,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:12:47,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:12:47,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:12:47,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:12:47,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:12:47,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:12:47,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:12:47,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:12:47,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:12:47,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:12:47,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:12:47,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:12:47,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:12:47,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:12:47,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:12:47,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:12:47,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:12:47,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:12:47,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:12:47,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:12:47,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:12:47,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:12:47,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:12:47,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:12:47,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:12:47,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:12:47,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:12:47,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:12:47,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:12:47,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:12:47,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:12:47,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:12:47,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:12:47,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:12:47,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:12:47,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:12:47,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:12:47,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:12:47,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:12:47,703 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 22:12:47,756 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:12:47,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:12:47,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:12:47,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:12:47,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:12:47,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:12:47,768 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:12:47,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:12:47,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:12:47,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:12:47,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:12:47,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:12:47,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:12:47,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:12:47,772 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:12:47,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:12:47,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:12:47,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:12:47,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:12:47,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:12:47,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:12:47,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:12:47,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:12:47,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:12:47,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:12:47,775 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:12:47,775 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:12:47,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:12:47,776 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:12:47,778 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_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5663310b82fa3e5d48c5bcacd13ac8ac886029c41a2f8f3bd2b8442c496a9447 [2021-11-02 22:12:48,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:12:48,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:12:48,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:12:48,233 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:12:48,234 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:12:48,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2021-11-02 22:12:48,323 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU/data/e2256b803/108ee418a541438ab1b98274a4f852d9/FLAG44f91dbeb [2021-11-02 22:12:49,658 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:12:49,659 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2021-11-02 22:12:49,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU/data/e2256b803/108ee418a541438ab1b98274a4f852d9/FLAG44f91dbeb [2021-11-02 22:12:49,854 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU/data/e2256b803/108ee418a541438ab1b98274a4f852d9 [2021-11-02 22:12:49,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:12:49,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:12:49,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:12:49,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:12:49,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:12:49,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:12:49" (1/1) ... [2021-11-02 22:12:49,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@601339d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:12:49, skipping insertion in model container [2021-11-02 22:12:49,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:12:49" (1/1) ... [2021-11-02 22:12:49,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:12:50,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:12:55,170 WARN L228 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_f7fe582e-b0fc-4563-adab-f0423bf2d956/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2021-11-02 22:12:55,178 WARN L228 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_f7fe582e-b0fc-4563-adab-f0423bf2d956/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2021-11-02 22:12:55,188 WARN L228 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_f7fe582e-b0fc-4563-adab-f0423bf2d956/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2021-11-02 22:12:55,189 WARN L228 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_f7fe582e-b0fc-4563-adab-f0423bf2d956/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2021-11-02 22:12:55,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:12:55,330 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:12:55,945 WARN L228 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_f7fe582e-b0fc-4563-adab-f0423bf2d956/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[408897,408910] [2021-11-02 22:12:55,947 WARN L228 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_f7fe582e-b0fc-4563-adab-f0423bf2d956/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409066,409079] [2021-11-02 22:12:55,948 WARN L228 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_f7fe582e-b0fc-4563-adab-f0423bf2d956/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409233,409246] [2021-11-02 22:12:55,949 WARN L228 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_f7fe582e-b0fc-4563-adab-f0423bf2d956/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i[409401,409414] [2021-11-02 22:12:55,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:12:56,376 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:12:56,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:12:56 WrapperNode [2021-11-02 22:12:56,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:12:56,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:12:56,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:12:56,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:12:56,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:12:56" (1/1) ... [2021-11-02 22:12:56,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:12:56" (1/1) ... [2021-11-02 22:13:17,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:13:17,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:13:17,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:13:17,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:13:17,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:12:56" (1/1) ... [2021-11-02 22:13:17,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:12:56" (1/1) ... [2021-11-02 22:13:19,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:12:56" (1/1) ... [2021-11-02 22:13:19,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:12:56" (1/1) ... [2021-11-02 22:13:23,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:12:56" (1/1) ... [2021-11-02 22:13:24,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:12:56" (1/1) ... [2021-11-02 22:13:25,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:12:56" (1/1) ... [2021-11-02 22:13:26,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:13:26,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:13:26,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:13:26,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:13:26,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:12:56" (1/1) ... [2021-11-02 22:13:26,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:13:26,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:13:26,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:13:26,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7fe582e-b0fc-4563-adab-f0423bf2d956/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:13:26,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:13:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 22:13:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 22:13:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 22:13:26,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 22:13:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 22:13:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:13:26,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:13:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 22:13:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 22:13:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:13:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 22:13:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 22:13:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 22:13:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-02 22:13:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:16:30,308 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-02 22:16:30,309 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-02 22:16:30,310 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-02 22:16:30,311 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-02 22:16:30,311 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-02 22:16:30,313 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-02 22:16:30,522 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:16:30,522 INFO L299 CfgBuilder]: Removed 57606 assume(true) statements. [2021-11-02 22:16:30,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:16:30 BoogieIcfgContainer [2021-11-02 22:16:30,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:16:30,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:16:30,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:16:30,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:16:30,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:12:49" (1/3) ... [2021-11-02 22:16:30,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f29048c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:16:30, skipping insertion in model container [2021-11-02 22:16:30,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:12:56" (2/3) ... [2021-11-02 22:16:30,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f29048c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:16:30, skipping insertion in model container [2021-11-02 22:16:30,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:16:30" (3/3) ... [2021-11-02 22:16:30,576 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-qlogic-qla3xxx.cil.i [2021-11-02 22:16:30,583 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:16:30,583 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 141 error locations. [2021-11-02 22:16:30,812 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:16:30,820 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 [2021-11-02 22:16:30,820 INFO L340 AbstractCegarLoop]: Starting to check reachability of 141 error locations. [2021-11-02 22:16:31,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 42290 states, 42149 states have (on average 1.2542646326128735) internal successors, (52866), 42289 states have internal predecessors, (52866), 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) [2021-11-02 22:16:31,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-02 22:16:31,715 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:16:31,716 INFO L513 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:16:31,717 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 138 more)] === [2021-11-02 22:16:31,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:16:31,748 INFO L85 PathProgramCache]: Analyzing trace with hash 103332009, now seen corresponding path program 1 times [2021-11-02 22:16:31,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:16:31,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702407041] [2021-11-02 22:16:31,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:16:31,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:16:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:16:32,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:16:32,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:16:32,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702407041] [2021-11-02 22:16:32,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702407041] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:16:32,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:16:32,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:16:32,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074523112] [2021-11-02 22:16:32,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:16:32,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:16:32,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:16:32,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:16:32,934 INFO L87 Difference]: Start difference. First operand has 42290 states, 42149 states have (on average 1.2542646326128735) internal successors, (52866), 42289 states have internal predecessors, (52866), 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) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-11-02 22:16:39,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:16:39,789 INFO L93 Difference]: Finished difference Result 126554 states and 158197 transitions. [2021-11-02 22:16:39,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:16:39,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 39 [2021-11-02 22:16:39,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:16:40,302 INFO L225 Difference]: With dead ends: 126554 [2021-11-02 22:16:40,303 INFO L226 Difference]: Without dead ends: 83797 [2021-11-02 22:16:40,449 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:16:40,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83797 states. [2021-11-02 22:16:44,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83797 to 83567. [2021-11-02 22:16:44,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83567 states, 83426 states have (on average 1.243221537650133) internal successors, (103717), 83566 states have internal predecessors, (103717), 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) [2021-11-02 22:16:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83567 states to 83567 states and 103717 transitions. [2021-11-02 22:16:45,223 INFO L78 Accepts]: Start accepts. Automaton has 83567 states and 103717 transitions. Word has length 39 [2021-11-02 22:16:45,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:16:45,224 INFO L470 AbstractCegarLoop]: Abstraction has 83567 states and 103717 transitions. [2021-11-02 22:16:45,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2021-11-02 22:16:45,225 INFO L276 IsEmpty]: Start isEmpty. Operand 83567 states and 103717 transitions. [2021-11-02 22:16:45,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-02 22:16:45,238 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:16:45,238 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:16:45,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:16:45,239 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 138 more)] === [2021-11-02 22:16:45,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:16:45,246 INFO L85 PathProgramCache]: Analyzing trace with hash -2012062014, now seen corresponding path program 1 times [2021-11-02 22:16:45,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:16:45,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056369507] [2021-11-02 22:16:45,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:16:45,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:16:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:16:45,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:16:45,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:16:45,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056369507] [2021-11-02 22:16:45,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056369507] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:16:45,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:16:45,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:16:45,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303894825] [2021-11-02 22:16:45,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:16:45,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:16:45,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:16:45,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:16:45,654 INFO L87 Difference]: Start difference. First operand 83567 states and 103717 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-02 22:16:54,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:16:54,374 INFO L93 Difference]: Finished difference Result 243877 states and 302463 transitions. [2021-11-02 22:16:54,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:16:54,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 40 [2021-11-02 22:16:54,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:16:55,093 INFO L225 Difference]: With dead ends: 243877 [2021-11-02 22:16:55,093 INFO L226 Difference]: Without dead ends: 160378 [2021-11-02 22:16:55,417 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:16:55,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160378 states. [2021-11-02 22:17:00,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160378 to 159286. [2021-11-02 22:17:00,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159286 states, 159145 states have (on average 1.2421942253919382) internal successors, (197689), 159285 states have internal predecessors, (197689), 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) [2021-11-02 22:17:01,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159286 states to 159286 states and 197689 transitions. [2021-11-02 22:17:01,247 INFO L78 Accepts]: Start accepts. Automaton has 159286 states and 197689 transitions. Word has length 40 [2021-11-02 22:17:01,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:17:01,254 INFO L470 AbstractCegarLoop]: Abstraction has 159286 states and 197689 transitions. [2021-11-02 22:17:01,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-11-02 22:17:01,256 INFO L276 IsEmpty]: Start isEmpty. Operand 159286 states and 197689 transitions. [2021-11-02 22:17:01,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-02 22:17:01,262 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:17:01,262 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:17:01,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:17:01,263 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 138 more)] === [2021-11-02 22:17:01,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:17:01,264 INFO L85 PathProgramCache]: Analyzing trace with hash -2065747957, now seen corresponding path program 1 times [2021-11-02 22:17:01,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:17:01,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726605307] [2021-11-02 22:17:01,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:17:01,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:17:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:17:01,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:17:01,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:17:01,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726605307] [2021-11-02 22:17:01,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726605307] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:17:01,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:17:01,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:17:01,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362711367] [2021-11-02 22:17:01,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:17:01,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:17:01,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:17:01,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:17:01,603 INFO L87 Difference]: Start difference. First operand 159286 states and 197689 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-02 22:17:07,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:17:07,543 INFO L93 Difference]: Finished difference Result 242867 states and 301344 transitions. [2021-11-02 22:17:07,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:17:07,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2021-11-02 22:17:07,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:17:07,764 INFO L225 Difference]: With dead ends: 242867 [2021-11-02 22:17:07,765 INFO L226 Difference]: Without dead ends: 83649 [2021-11-02 22:17:08,018 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:17:08,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83649 states. [2021-11-02 22:17:10,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83649 to 83527. [2021-11-02 22:17:10,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83527 states, 83386 states have (on average 1.242270884800806) internal successors, (103588), 83526 states have internal predecessors, (103588), 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) [2021-11-02 22:17:10,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83527 states to 83527 states and 103588 transitions. [2021-11-02 22:17:10,795 INFO L78 Accepts]: Start accepts. Automaton has 83527 states and 103588 transitions. Word has length 44 [2021-11-02 22:17:10,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:17:10,796 INFO L470 AbstractCegarLoop]: Abstraction has 83527 states and 103588 transitions. [2021-11-02 22:17:10,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2021-11-02 22:17:10,797 INFO L276 IsEmpty]: Start isEmpty. Operand 83527 states and 103588 transitions. [2021-11-02 22:17:10,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-02 22:17:10,799 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:17:10,799 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:17:10,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 22:17:10,800 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 138 more)] === [2021-11-02 22:17:10,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:17:10,801 INFO L85 PathProgramCache]: Analyzing trace with hash -66140840, now seen corresponding path program 1 times [2021-11-02 22:17:10,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:17:10,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382487799] [2021-11-02 22:17:10,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:17:10,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:17:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:17:11,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:17:11,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:17:11,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382487799] [2021-11-02 22:17:11,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382487799] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:17:11,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:17:11,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:17:11,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755485465] [2021-11-02 22:17:11,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:17:11,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:17:11,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:17:11,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:17:11,142 INFO L87 Difference]: Start difference. First operand 83527 states and 103588 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-02 22:17:17,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:17:17,668 INFO L93 Difference]: Finished difference Result 243589 states and 302089 transitions. [2021-11-02 22:17:17,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:17:17,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2021-11-02 22:17:17,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:17:18,018 INFO L225 Difference]: With dead ends: 243589 [2021-11-02 22:17:18,018 INFO L226 Difference]: Without dead ends: 160130 [2021-11-02 22:17:18,157 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:17:18,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160130 states.