./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-irda-via-ircc.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_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:19:17,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:19:17,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:19:17,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:19:17,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:19:17,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:19:17,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:19:17,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:19:17,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:19:17,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:19:17,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:19:17,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:19:17,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:19:17,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:19:17,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:19:17,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:19:17,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:19:17,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:19:17,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:19:17,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:19:17,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:19:17,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:19:17,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:19:17,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:19:17,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:19:17,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:19:17,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:19:17,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:19:17,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:19:17,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:19:17,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:19:17,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:19:17,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:19:17,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:19:17,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:19:17,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:19:17,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:19:17,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:19:17,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:19:17,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:19:17,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:19:17,808 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:19:17,852 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:19:17,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:19:17,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:19:17,854 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:19:17,854 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:19:17,854 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:19:17,854 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:19:17,855 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:19:17,855 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:19:17,855 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:19:17,855 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:19:17,855 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:19:17,856 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:19:17,856 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:19:17,856 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:19:17,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:19:17,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:19:17,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:19:17,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:19:17,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:19:17,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:19:17,858 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:19:17,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:19:17,858 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:19:17,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:19:17,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:19:17,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:19:17,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:19:17,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:19:17,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:19:17,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:19:17,860 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:19:17,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:19:17,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:19:17,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:19:17,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:19:17,861 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 [2021-11-03 04:19:18,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:19:18,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:19:18,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:19:18,133 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:19:18,134 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:19:18,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-03 04:19:18,245 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/data/56b914eab/71bd0ccba774442a8f3404c32390aa96/FLAG465dc512e [2021-11-03 04:19:19,134 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:19:19,135 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-03 04:19:19,224 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/data/56b914eab/71bd0ccba774442a8f3404c32390aa96/FLAG465dc512e [2021-11-03 04:19:19,572 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/data/56b914eab/71bd0ccba774442a8f3404c32390aa96 [2021-11-03 04:19:19,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:19:19,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:19:19,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:19:19,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:19:19,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:19:19,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:19:19" (1/1) ... [2021-11-03 04:19:19,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b8526e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:19, skipping insertion in model container [2021-11-03 04:19:19,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:19:19" (1/1) ... [2021-11-03 04:19:19,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:19:19,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:19:22,933 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2021-11-03 04:19:22,936 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2021-11-03 04:19:22,937 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2021-11-03 04:19:22,938 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2021-11-03 04:19:22,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:19:22,985 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 04:19:22,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43601e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:22, skipping insertion in model container [2021-11-03 04:19:22,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:19:22,986 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:19:22,988 INFO L168 Benchmark]: Toolchain (without parser) took 3408.91 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 63.0 MB in the beginning and 61.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 54.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:19:22,989 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 94.4 MB. Free memory was 66.2 MB in the beginning and 66.2 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:19:22,990 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3403.76 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 62.7 MB in the beginning and 61.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 54.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:19:22,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 94.4 MB. Free memory was 66.2 MB in the beginning and 66.2 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3403.76 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 62.7 MB in the beginning and 61.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 54.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7589]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:19:25,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:19:25,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:19:25,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:19:25,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:19:25,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:19:25,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:19:25,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:19:25,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:19:25,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:19:25,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:19:25,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:19:25,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:19:25,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:19:25,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:19:25,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:19:25,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:19:25,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:19:25,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:19:25,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:19:25,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:19:25,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:19:25,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:19:25,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:19:25,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:19:25,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:19:25,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:19:25,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:19:25,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:19:25,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:19:25,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:19:25,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:19:25,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:19:25,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:19:25,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:19:25,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:19:25,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:19:25,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:19:25,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:19:25,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:19:25,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:19:25,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:19:25,717 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:19:25,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:19:25,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:19:25,720 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:19:25,720 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:19:25,720 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:19:25,720 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:19:25,721 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:19:25,721 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:19:25,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:19:25,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:19:25,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:19:25,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:19:25,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:19:25,725 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:19:25,725 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:19:25,725 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:19:25,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:19:25,726 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:19:25,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:19:25,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:19:25,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:19:25,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:19:25,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:19:25,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:19:25,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:19:25,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:19:25,728 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:19:25,728 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:19:25,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:19:25,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:19:25,729 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:19:25,730 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 [2021-11-03 04:19:26,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:19:26,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:19:26,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:19:26,161 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:19:26,162 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:19:26,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-03 04:19:26,245 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/data/33c6925b2/d0f8550b477e481889fe817813458b37/FLAG18259fd06 [2021-11-03 04:19:27,302 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:19:27,303 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-03 04:19:27,371 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/data/33c6925b2/d0f8550b477e481889fe817813458b37/FLAG18259fd06 [2021-11-03 04:19:27,647 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/data/33c6925b2/d0f8550b477e481889fe817813458b37 [2021-11-03 04:19:27,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:19:27,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:19:27,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:19:27,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:19:27,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:19:27,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:19:27" (1/1) ... [2021-11-03 04:19:27,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104c2250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:27, skipping insertion in model container [2021-11-03 04:19:27,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:19:27" (1/1) ... [2021-11-03 04:19:27,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:19:27,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:19:31,250 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2021-11-03 04:19:31,253 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2021-11-03 04:19:31,253 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2021-11-03 04:19:31,254 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2021-11-03 04:19:31,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:19:31,316 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:19:31,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:19:31,717 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2021-11-03 04:19:31,718 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2021-11-03 04:19:31,719 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2021-11-03 04:19:31,719 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2021-11-03 04:19:31,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:19:31,791 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:19:32,308 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2021-11-03 04:19:32,309 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2021-11-03 04:19:32,309 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2021-11-03 04:19:32,310 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_f475ab7c-31a2-436c-ab34-af36a25a3a56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2021-11-03 04:19:32,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:19:32,569 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:19:32,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:32 WrapperNode [2021-11-03 04:19:32,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:19:32,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:19:32,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:19:32,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:19:32,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:32" (1/1) ... [2021-11-03 04:19:32,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:32" (1/1) ... [2021-11-03 04:19:37,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:19:37,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:19:37,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:19:37,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:19:37,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:32" (1/1) ... [2021-11-03 04:19:37,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:32" (1/1) ... [2021-11-03 04:19:38,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:32" (1/1) ... [2021-11-03 04:19:38,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:32" (1/1) ... [2021-11-03 04:19:40,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:32" (1/1) ... [2021-11-03 04:19:40,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:32" (1/1) ... [2021-11-03 04:19:40,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:32" (1/1) ... [2021-11-03 04:19:41,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:19:41,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:19:41,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:19:41,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:19:41,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:32" (1/1) ... [2021-11-03 04:19:41,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:19:41,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:19:41,358 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:19:41,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:19:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:19:41,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:19:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:19:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:19:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:19:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:19:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 04:19:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 04:19:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 04:19:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 04:19:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:19:41,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:19:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:19:41,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:19:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:19:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 04:19:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 04:19:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:19:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:19:41,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:19:41,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:19:41,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 04:19:41,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:19:41,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:19:41,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 04:19:41,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 04:19:41,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 04:19:41,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 04:22:45,352 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0bv32; [2021-11-03 04:22:45,352 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 04:22:45,352 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 04:22:45,355 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 04:22:45,470 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:22:45,470 INFO L299 CfgBuilder]: Removed 28753 assume(true) statements. [2021-11-03 04:22:45,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:22:45 BoogieIcfgContainer [2021-11-03 04:22:45,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:22:45,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:22:45,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:22:45,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:22:45,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:19:27" (1/3) ... [2021-11-03 04:22:45,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e013066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:22:45, skipping insertion in model container [2021-11-03 04:22:45,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:19:32" (2/3) ... [2021-11-03 04:22:45,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e013066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:22:45, skipping insertion in model container [2021-11-03 04:22:45,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:22:45" (3/3) ... [2021-11-03 04:22:45,502 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2021-11-03 04:22:45,508 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:22:45,508 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2021-11-03 04:22:45,645 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:22:45,652 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:22:45,653 INFO L340 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2021-11-03 04:22:45,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 22069 states, 22035 states have (on average 1.3668708872248696) internal successors, (30119), 22068 states have internal predecessors, (30119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:22:45,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-03 04:22:45,997 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:22:45,997 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] [2021-11-03 04:22:45,998 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-03 04:22:46,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:22:46,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1663244342, now seen corresponding path program 1 times [2021-11-03 04:22:46,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:22:46,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604363378] [2021-11-03 04:22:46,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:22:46,027 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:22:46,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:22:46,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:22:46,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:22:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:22:49,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 1404 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:22:49,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:22:49,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:22:49,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:22:49,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:22:49,867 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:22:49,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [604363378] [2021-11-03 04:22:49,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [604363378] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:22:49,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:22:49,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:22:49,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758732860] [2021-11-03 04:22:49,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:22:49,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:22:49,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:22:49,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:22:49,940 INFO L87 Difference]: Start difference. First operand has 22069 states, 22035 states have (on average 1.3668708872248696) internal successors, (30119), 22068 states have internal predecessors, (30119), 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 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:22:56,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:22:56,278 INFO L93 Difference]: Finished difference Result 87791 states and 119861 transitions. [2021-11-03 04:22:56,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:22:56,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-03 04:22:56,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:22:56,729 INFO L225 Difference]: With dead ends: 87791 [2021-11-03 04:22:56,730 INFO L226 Difference]: Without dead ends: 65458 [2021-11-03 04:22:56,973 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:22:57,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65458 states. [2021-11-03 04:22:59,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65458 to 65434. [2021-11-03 04:22:59,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65434 states, 65400 states have (on average 1.362217125382263) internal successors, (89089), 65433 states have internal predecessors, (89089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:00,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65434 states to 65434 states and 89089 transitions. [2021-11-03 04:23:00,430 INFO L78 Accepts]: Start accepts. Automaton has 65434 states and 89089 transitions. Word has length 30 [2021-11-03 04:23:00,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:23:00,433 INFO L470 AbstractCegarLoop]: Abstraction has 65434 states and 89089 transitions. [2021-11-03 04:23:00,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:00,435 INFO L276 IsEmpty]: Start isEmpty. Operand 65434 states and 89089 transitions. [2021-11-03 04:23:00,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-03 04:23:00,439 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:23:00,440 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] [2021-11-03 04:23:00,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:23:00,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:23:00,641 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-03 04:23:00,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:23:00,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1234824287, now seen corresponding path program 1 times [2021-11-03 04:23:00,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:23:00,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [198823619] [2021-11-03 04:23:00,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:00,645 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:23:00,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:23:00,649 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:23:00,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:23:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:23:03,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:23:03,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:23:04,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:23:04,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:23:04,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:23:04,324 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:23:04,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [198823619] [2021-11-03 04:23:04,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [198823619] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:23:04,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:23:04,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:23:04,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822681058] [2021-11-03 04:23:04,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:23:04,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:23:04,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:23:04,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:23:04,333 INFO L87 Difference]: Start difference. First operand 65434 states and 89089 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 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) [2021-11-03 04:23:14,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:23:14,022 INFO L93 Difference]: Finished difference Result 189947 states and 258189 transitions. [2021-11-03 04:23:14,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:23:14,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 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 31 [2021-11-03 04:23:14,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:23:14,810 INFO L225 Difference]: With dead ends: 189947 [2021-11-03 04:23:14,810 INFO L226 Difference]: Without dead ends: 124557 [2021-11-03 04:23:15,070 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:23:15,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124557 states. [2021-11-03 04:23:20,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124557 to 122589. [2021-11-03 04:23:20,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122589 states, 122555 states have (on average 1.359389661784505) internal successors, (166600), 122588 states have internal predecessors, (166600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122589 states to 122589 states and 166600 transitions. [2021-11-03 04:23:20,627 INFO L78 Accepts]: Start accepts. Automaton has 122589 states and 166600 transitions. Word has length 31 [2021-11-03 04:23:20,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:23:20,628 INFO L470 AbstractCegarLoop]: Abstraction has 122589 states and 166600 transitions. [2021-11-03 04:23:20,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 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) [2021-11-03 04:23:20,628 INFO L276 IsEmpty]: Start isEmpty. Operand 122589 states and 166600 transitions. [2021-11-03 04:23:20,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-03 04:23:20,637 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:23:20,637 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] [2021-11-03 04:23:20,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:23:20,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:23:20,842 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2021-11-03 04:23:20,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:23:20,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1128421566, now seen corresponding path program 1 times [2021-11-03 04:23:20,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:23:20,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283413501] [2021-11-03 04:23:20,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:20,847 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:23:20,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:23:20,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:23:20,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f475ab7c-31a2-436c-ab34-af36a25a3a56/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:23:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:23:24,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:23:24,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:23:24,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:23:24,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:23:24,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:23:24,721 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:23:24,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283413501] [2021-11-03 04:23:24,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283413501] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:23:24,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:23:24,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:23:24,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207852923] [2021-11-03 04:23:24,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:23:24,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:23:24,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:23:24,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:23:24,725 INFO L87 Difference]: Start difference. First operand 122589 states and 166600 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:36,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:23:36,707 INFO L93 Difference]: Finished difference Result 411080 states and 558425 transitions. [2021-11-03 04:23:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:23:36,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 36 [2021-11-03 04:23:36,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:23:37,834 INFO L225 Difference]: With dead ends: 411080 [2021-11-03 04:23:37,835 INFO L226 Difference]: Without dead ends: 288535 [2021-11-03 04:23:38,583 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:23:39,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288535 states.