./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-wireless-adm8211.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_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/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_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/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-wireless-adm8211.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/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_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/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 265e49c3377c52c97dc3fc0a083b7daee63958176975b73f1e1d54651892cb04 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:37:28,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:37:28,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:37:28,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:37:28,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:37:28,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:37:28,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:37:28,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:37:28,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:37:28,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:37:28,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:37:28,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:37:28,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:37:28,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:37:28,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:37:28,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:37:28,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:37:28,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:37:28,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:37:28,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:37:28,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:37:28,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:37:28,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:37:28,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:37:28,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:37:28,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:37:28,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:37:28,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:37:28,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:37:28,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:37:28,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:37:28,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:37:28,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:37:28,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:37:28,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:37:28,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:37:28,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:37:28,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:37:28,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:37:28,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:37:28,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:37:28,709 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 22:37:28,751 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:37:28,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:37:28,753 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:37:28,753 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:37:28,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:37:28,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:37:28,762 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:37:28,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:37:28,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:37:28,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:37:28,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:37:28,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:37:28,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:37:28,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:37:28,765 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:37:28,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:37:28,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:37:28,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:37:28,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:37:28,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:37:28,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:37:28,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:37:28,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:37:28,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:37:28,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:37:28,767 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:37:28,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:37:28,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:37:28,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:37:28,770 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_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 265e49c3377c52c97dc3fc0a083b7daee63958176975b73f1e1d54651892cb04 [2021-11-02 22:37:29,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:37:29,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:37:29,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:37:29,098 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:37:29,099 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:37:29,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2021-11-02 22:37:29,185 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/bin/uautomizer-tBqnrhUYjU/data/1fc0018c0/b7abc5dd773f48bf8fe696d642310c20/FLAG2f0be8f9b [2021-11-02 22:37:30,370 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:37:30,371 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2021-11-02 22:37:30,455 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/bin/uautomizer-tBqnrhUYjU/data/1fc0018c0/b7abc5dd773f48bf8fe696d642310c20/FLAG2f0be8f9b [2021-11-02 22:37:30,547 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/bin/uautomizer-tBqnrhUYjU/data/1fc0018c0/b7abc5dd773f48bf8fe696d642310c20 [2021-11-02 22:37:30,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:37:30,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:37:30,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:37:30,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:37:30,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:37:30,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:37:30" (1/1) ... [2021-11-02 22:37:30,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a8e63f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:30, skipping insertion in model container [2021-11-02 22:37:30,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:37:30" (1/1) ... [2021-11-02 22:37:30,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:37:30,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:37:34,429 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_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[372884,372897] [2021-11-02 22:37:34,433 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_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373053,373066] [2021-11-02 22:37:34,434 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_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373220,373233] [2021-11-02 22:37:34,435 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_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373388,373401] [2021-11-02 22:37:34,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:37:34,513 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:37:35,077 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_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[372884,372897] [2021-11-02 22:37:35,079 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_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373053,373066] [2021-11-02 22:37:35,080 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_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373220,373233] [2021-11-02 22:37:35,080 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_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373388,373401] [2021-11-02 22:37:35,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:37:35,291 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:37:35,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:35 WrapperNode [2021-11-02 22:37:35,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:37:35,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:37:35,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:37:35,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:37:35,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:35" (1/1) ... [2021-11-02 22:37:35,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:35" (1/1) ... [2021-11-02 22:37:38,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:37:38,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:37:38,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:37:38,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:37:38,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:35" (1/1) ... [2021-11-02 22:37:38,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:35" (1/1) ... [2021-11-02 22:37:38,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:35" (1/1) ... [2021-11-02 22:37:38,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:35" (1/1) ... [2021-11-02 22:37:40,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:35" (1/1) ... [2021-11-02 22:37:40,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:35" (1/1) ... [2021-11-02 22:37:40,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:35" (1/1) ... [2021-11-02 22:37:41,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:37:41,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:37:41,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:37:41,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:37:41,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:35" (1/1) ... [2021-11-02 22:37:41,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:37:41,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:37:41,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:37:41,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa62f5b9-3359-43f0-a68b-a14bd8da43a7/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:37:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:37:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 22:37:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 22:37:41,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 22:37:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 22:37:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 22:37:41,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:37:41,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:37:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 22:37:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 22:37:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:37:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 22:37:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 22:37:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 22:37:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:38:34,307 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-02 22:38:34,308 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-02 22:38:34,308 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-02 22:38:34,308 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-02 22:38:34,309 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-02 22:38:34,313 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-02 22:38:34,314 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-02 22:38:34,395 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:38:34,396 INFO L299 CfgBuilder]: Removed 11536 assume(true) statements. [2021-11-02 22:38:34,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:38:34 BoogieIcfgContainer [2021-11-02 22:38:34,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:38:34,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:38:34,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:38:34,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:38:34,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:37:30" (1/3) ... [2021-11-02 22:38:34,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9b47ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:38:34, skipping insertion in model container [2021-11-02 22:38:34,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:37:35" (2/3) ... [2021-11-02 22:38:34,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f9b47ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:38:34, skipping insertion in model container [2021-11-02 22:38:34,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:38:34" (3/3) ... [2021-11-02 22:38:34,421 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2021-11-02 22:38:34,427 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:38:34,428 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-11-02 22:38:34,536 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:38:34,543 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 22:38:34,543 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-11-02 22:38:34,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 11292 states, 11264 states have (on average 1.3313210227272727) internal successors, (14996), 11291 states have internal predecessors, (14996), 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 22:38:34,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-02 22:38:34,763 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:38:34,763 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] [2021-11-02 22:38:34,764 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-02 22:38:34,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:38:34,771 INFO L85 PathProgramCache]: Analyzing trace with hash -896382054, now seen corresponding path program 1 times [2021-11-02 22:38:34,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:38:34,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617588466] [2021-11-02 22:38:34,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:38:34,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:38:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:38:35,685 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 22:38:35,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:38:35,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617588466] [2021-11-02 22:38:35,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617588466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:38:35,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:38:35,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:38:35,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789097770] [2021-11-02 22:38:35,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:38:35,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:38:35,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:38:35,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:38:35,763 INFO L87 Difference]: Start difference. First operand has 11292 states, 11264 states have (on average 1.3313210227272727) internal successors, (14996), 11291 states have internal predecessors, (14996), 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 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 22:38:39,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:38:39,510 INFO L93 Difference]: Finished difference Result 33528 states and 44545 transitions. [2021-11-02 22:38:39,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:38:39,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-02 22:38:39,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:38:39,712 INFO L225 Difference]: With dead ends: 33528 [2021-11-02 22:38:39,713 INFO L226 Difference]: Without dead ends: 22107 [2021-11-02 22:38:39,752 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 22:38:39,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22107 states. [2021-11-02 22:38:40,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22107 to 22099. [2021-11-02 22:38:40,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22099 states, 22071 states have (on average 1.3200126863304789) internal successors, (29134), 22098 states have internal predecessors, (29134), 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 22:38:40,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22099 states to 22099 states and 29134 transitions. [2021-11-02 22:38:40,946 INFO L78 Accepts]: Start accepts. Automaton has 22099 states and 29134 transitions. Word has length 45 [2021-11-02 22:38:40,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:38:40,949 INFO L470 AbstractCegarLoop]: Abstraction has 22099 states and 29134 transitions. [2021-11-02 22:38:40,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 22:38:40,951 INFO L276 IsEmpty]: Start isEmpty. Operand 22099 states and 29134 transitions. [2021-11-02 22:38:40,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-02 22:38:40,963 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:38:40,963 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 22:38:40,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:38:40,964 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-02 22:38:40,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:38:40,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1966733374, now seen corresponding path program 1 times [2021-11-02 22:38:40,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:38:40,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507710793] [2021-11-02 22:38:40,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:38:40,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:38:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:38:41,354 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 22:38:41,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:38:41,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507710793] [2021-11-02 22:38:41,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507710793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:38:41,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:38:41,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:38:41,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507524561] [2021-11-02 22:38:41,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:38:41,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:38:41,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:38:41,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:38:41,362 INFO L87 Difference]: Start difference. First operand 22099 states and 29134 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 22:38:46,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:38:46,068 INFO L93 Difference]: Finished difference Result 65383 states and 86264 transitions. [2021-11-02 22:38:46,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:38:46,069 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 22:38:46,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:38:46,258 INFO L225 Difference]: With dead ends: 65383 [2021-11-02 22:38:46,259 INFO L226 Difference]: Without dead ends: 43368 [2021-11-02 22:38:46,316 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 22:38:46,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43368 states. [2021-11-02 22:38:48,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43368 to 43204. [2021-11-02 22:38:48,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43204 states, 43176 states have (on average 1.3214748934593292) internal successors, (57056), 43203 states have internal predecessors, (57056), 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 22:38:48,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43204 states to 43204 states and 57056 transitions. [2021-11-02 22:38:48,745 INFO L78 Accepts]: Start accepts. Automaton has 43204 states and 57056 transitions. Word has length 52 [2021-11-02 22:38:48,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:38:48,746 INFO L470 AbstractCegarLoop]: Abstraction has 43204 states and 57056 transitions. [2021-11-02 22:38:48,747 INFO L471 AbstractCegarLoop]: INTERPOLANT 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) [2021-11-02 22:38:48,747 INFO L276 IsEmpty]: Start isEmpty. Operand 43204 states and 57056 transitions. [2021-11-02 22:38:48,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-02 22:38:48,754 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:38:48,755 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:38:48,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:38:48,764 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-02 22:38:48,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:38:48,765 INFO L85 PathProgramCache]: Analyzing trace with hash 4408613, now seen corresponding path program 1 times [2021-11-02 22:38:48,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:38:48,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393637203] [2021-11-02 22:38:48,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:38:48,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:38:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:38:49,131 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:38:49,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:38:49,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393637203] [2021-11-02 22:38:49,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393637203] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:38:49,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:38:49,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:38:49,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914704563] [2021-11-02 22:38:49,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:38:49,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:38:49,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:38:49,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:38:49,136 INFO L87 Difference]: Start difference. First operand 43204 states and 57056 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 22:38:53,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:38:53,505 INFO L93 Difference]: Finished difference Result 86328 states and 114020 transitions. [2021-11-02 22:38:53,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:38:53,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2021-11-02 22:38:53,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:38:53,748 INFO L225 Difference]: With dead ends: 86328 [2021-11-02 22:38:53,748 INFO L226 Difference]: Without dead ends: 64688 [2021-11-02 22:38:53,824 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 22:38:53,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64688 states. [2021-11-02 22:38:56,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64688 to 64678. [2021-11-02 22:38:56,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64678 states, 64650 states have (on average 1.3217169373549884) internal successors, (85449), 64677 states have internal predecessors, (85449), 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 22:38:57,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64678 states to 64678 states and 85449 transitions. [2021-11-02 22:38:57,315 INFO L78 Accepts]: Start accepts. Automaton has 64678 states and 85449 transitions. Word has length 70 [2021-11-02 22:38:57,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:38:57,318 INFO L470 AbstractCegarLoop]: Abstraction has 64678 states and 85449 transitions. [2021-11-02 22:38:57,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 22:38:57,319 INFO L276 IsEmpty]: Start isEmpty. Operand 64678 states and 85449 transitions. [2021-11-02 22:38:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-02 22:38:57,323 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:38:57,324 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:38:57,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 22:38:57,324 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-02 22:38:57,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:38:57,326 INFO L85 PathProgramCache]: Analyzing trace with hash 262574051, now seen corresponding path program 1 times [2021-11-02 22:38:57,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:38:57,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267051290] [2021-11-02 22:38:57,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:38:57,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:38:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:38:57,766 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-02 22:38:57,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:38:57,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267051290] [2021-11-02 22:38:57,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267051290] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:38:57,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:38:57,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:38:57,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516962158] [2021-11-02 22:38:57,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:38:57,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:38:57,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:38:57,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:38:57,770 INFO L87 Difference]: Start difference. First operand 64678 states and 85449 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 22:39:00,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:39:00,179 INFO L93 Difference]: Finished difference Result 64678 states and 85449 transitions. [2021-11-02 22:39:00,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:39:00,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 70 [2021-11-02 22:39:00,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:39:00,444 INFO L225 Difference]: With dead ends: 64678 [2021-11-02 22:39:00,444 INFO L226 Difference]: Without dead ends: 64674 [2021-11-02 22:39:00,630 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:39:00,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64674 states. [2021-11-02 22:39:03,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64674 to 64674. [2021-11-02 22:39:03,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64674 states, 64648 states have (on average 1.321695953471105) internal successors, (85445), 64673 states have internal predecessors, (85445), 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 22:39:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64674 states to 64674 states and 85445 transitions. [2021-11-02 22:39:03,490 INFO L78 Accepts]: Start accepts. Automaton has 64674 states and 85445 transitions. Word has length 70 [2021-11-02 22:39:03,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:39:03,490 INFO L470 AbstractCegarLoop]: Abstraction has 64674 states and 85445 transitions. [2021-11-02 22:39:03,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 22:39:03,491 INFO L276 IsEmpty]: Start isEmpty. Operand 64674 states and 85445 transitions. [2021-11-02 22:39:03,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-02 22:39:03,495 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:39:03,495 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:39:03,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 22:39:03,496 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-02 22:39:03,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:39:03,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1069266618, now seen corresponding path program 1 times [2021-11-02 22:39:03,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:39:03,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799340323] [2021-11-02 22:39:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:39:03,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:39:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:39:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-02 22:39:04,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:39:04,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799340323] [2021-11-02 22:39:04,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799340323] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:39:04,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:39:04,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:39:04,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167785959] [2021-11-02 22:39:04,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:39:04,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:39:04,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:39:04,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:39:04,189 INFO L87 Difference]: Start difference. First operand 64674 states and 85445 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 22:39:06,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:39:06,384 INFO L93 Difference]: Finished difference Result 64674 states and 85445 transitions. [2021-11-02 22:39:06,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:39:06,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 72 [2021-11-02 22:39:06,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:39:06,547 INFO L225 Difference]: With dead ends: 64674 [2021-11-02 22:39:06,547 INFO L226 Difference]: Without dead ends: 64670 [2021-11-02 22:39:06,565 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:39:06,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64670 states. [2021-11-02 22:39:09,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64670 to 64670. [2021-11-02 22:39:09,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64670 states, 64646 states have (on average 1.3216749682888347) internal successors, (85441), 64669 states have internal predecessors, (85441), 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 22:39:09,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64670 states to 64670 states and 85441 transitions. [2021-11-02 22:39:09,204 INFO L78 Accepts]: Start accepts. Automaton has 64670 states and 85441 transitions. Word has length 72 [2021-11-02 22:39:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:39:09,207 INFO L470 AbstractCegarLoop]: Abstraction has 64670 states and 85441 transitions. [2021-11-02 22:39:09,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 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 22:39:09,213 INFO L276 IsEmpty]: Start isEmpty. Operand 64670 states and 85441 transitions. [2021-11-02 22:39:09,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-02 22:39:09,225 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:39:09,226 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:39:09,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 22:39:09,226 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-02 22:39:09,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:39:09,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1067894999, now seen corresponding path program 1 times [2021-11-02 22:39:09,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:39:09,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775169784] [2021-11-02 22:39:09,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:39:09,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:39:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:39:09,549 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-02 22:39:09,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:39:09,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775169784] [2021-11-02 22:39:09,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775169784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:39:09,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:39:09,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:39:09,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685813023] [2021-11-02 22:39:09,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:39:09,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:39:09,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:39:09,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:39:09,555 INFO L87 Difference]: Start difference. First operand 64670 states and 85441 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 22:39:11,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:39:11,544 INFO L93 Difference]: Finished difference Result 64670 states and 85441 transitions. [2021-11-02 22:39:11,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:39:11,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 74 [2021-11-02 22:39:11,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:39:11,691 INFO L225 Difference]: With dead ends: 64670 [2021-11-02 22:39:11,692 INFO L226 Difference]: Without dead ends: 64666 [2021-11-02 22:39:11,714 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:39:11,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64666 states. [2021-11-02 22:39:14,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64666 to 64666. [2021-11-02 22:39:14,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64666 states, 64644 states have (on average 1.3216539818080564) internal successors, (85437), 64665 states have internal predecessors, (85437), 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 22:39:14,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64666 states to 64666 states and 85437 transitions. [2021-11-02 22:39:14,592 INFO L78 Accepts]: Start accepts. Automaton has 64666 states and 85437 transitions. Word has length 74 [2021-11-02 22:39:14,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:39:14,593 INFO L470 AbstractCegarLoop]: Abstraction has 64666 states and 85437 transitions. [2021-11-02 22:39:14,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 22:39:14,593 INFO L276 IsEmpty]: Start isEmpty. Operand 64666 states and 85437 transitions. [2021-11-02 22:39:14,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-02 22:39:14,598 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:39:14,598 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:39:14,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 22:39:14,598 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-02 22:39:14,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:39:14,599 INFO L85 PathProgramCache]: Analyzing trace with hash 250231180, now seen corresponding path program 1 times [2021-11-02 22:39:14,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:39:14,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223720517] [2021-11-02 22:39:14,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:39:14,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:39:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:39:14,929 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-02 22:39:14,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:39:14,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223720517] [2021-11-02 22:39:14,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223720517] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:39:14,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:39:14,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:39:14,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388001673] [2021-11-02 22:39:14,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:39:14,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:39:14,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:39:14,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:39:14,932 INFO L87 Difference]: Start difference. First operand 64666 states and 85437 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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 22:39:17,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:39:17,343 INFO L93 Difference]: Finished difference Result 64666 states and 85437 transitions. [2021-11-02 22:39:17,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:39:17,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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 76 [2021-11-02 22:39:17,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:39:17,473 INFO L225 Difference]: With dead ends: 64666 [2021-11-02 22:39:17,473 INFO L226 Difference]: Without dead ends: 64662 [2021-11-02 22:39:17,494 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:39:17,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64662 states. [2021-11-02 22:39:19,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64662 to 64662. [2021-11-02 22:39:19,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64662 states, 64642 states have (on average 1.3216329940286502) internal successors, (85433), 64661 states have internal predecessors, (85433), 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 22:39:19,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64662 states to 64662 states and 85433 transitions. [2021-11-02 22:39:19,981 INFO L78 Accepts]: Start accepts. Automaton has 64662 states and 85433 transitions. Word has length 76 [2021-11-02 22:39:19,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:39:19,982 INFO L470 AbstractCegarLoop]: Abstraction has 64662 states and 85433 transitions. [2021-11-02 22:39:19,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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 22:39:19,982 INFO L276 IsEmpty]: Start isEmpty. Operand 64662 states and 85433 transitions. [2021-11-02 22:39:19,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-02 22:39:19,986 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:39:19,987 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:39:19,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 22:39:19,987 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-02 22:39:19,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:39:19,988 INFO L85 PathProgramCache]: Analyzing trace with hash -45862801, now seen corresponding path program 1 times [2021-11-02 22:39:19,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:39:19,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892939476] [2021-11-02 22:39:19,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:39:19,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:39:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:39:20,339 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-02 22:39:20,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:39:20,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892939476] [2021-11-02 22:39:20,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892939476] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:39:20,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:39:20,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:39:20,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508988553] [2021-11-02 22:39:20,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:39:20,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:39:20,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:39:20,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:39:20,343 INFO L87 Difference]: Start difference. First operand 64662 states and 85433 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 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)