./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-prism54-prism54.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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/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-wireless-prism54-prism54.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/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 03e2d0e28997af6c53edeab79acb28db60116030b3545ebb50af81c3e69fe889 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:46:55,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:46:55,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:46:55,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:46:55,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:46:55,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:46:55,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:46:55,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:46:55,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:46:55,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:46:55,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:46:55,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:46:55,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:46:55,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:46:55,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:46:55,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:46:55,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:46:55,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:46:55,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:46:55,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:46:55,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:46:55,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:46:55,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:46:55,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:46:55,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:46:55,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:46:55,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:46:55,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:46:55,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:46:55,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:46:55,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:46:55,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:46:55,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:46:55,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:46:55,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:46:55,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:46:55,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:46:55,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:46:55,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:46:55,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:46:55,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:46:55,900 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:46:55,925 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:46:55,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:46:55,926 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:46:55,927 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:46:55,927 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:46:55,928 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:46:55,928 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:46:55,928 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:46:55,929 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:46:55,929 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:46:55,929 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:46:55,930 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:46:55,930 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:46:55,931 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:46:55,931 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:46:55,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:46:55,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:46:55,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:46:55,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:46:55,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:46:55,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:46:55,934 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:46:55,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:46:55,935 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:46:55,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:46:55,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:46:55,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:46:55,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:46:55,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:46:55,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:46:55,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:46:55,942 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:46:55,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:46:55,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:46:55,943 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:46:55,943 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:46:55,944 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03e2d0e28997af6c53edeab79acb28db60116030b3545ebb50af81c3e69fe889 [2021-11-03 04:46:56,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:46:56,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:46:56,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:46:56,260 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:46:56,261 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:46:56,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2021-11-03 04:46:56,317 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/data/a2fa0002a/4c7f28608828412e8e09c051b59171c7/FLAG780538f4b [2021-11-03 04:46:57,315 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:46:57,318 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2021-11-03 04:46:57,393 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/data/a2fa0002a/4c7f28608828412e8e09c051b59171c7/FLAG780538f4b [2021-11-03 04:46:57,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/data/a2fa0002a/4c7f28608828412e8e09c051b59171c7 [2021-11-03 04:46:57,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:46:57,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:46:57,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:46:57,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:46:57,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:46:57,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:46:57" (1/1) ... [2021-11-03 04:46:57,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25987689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:46:57, skipping insertion in model container [2021-11-03 04:46:57,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:46:57" (1/1) ... [2021-11-03 04:46:57,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:46:57,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:46:59,267 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,052 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,449 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,467 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,468 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,475 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,476 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,499 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,499 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,549 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,550 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,551 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,553 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,554 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,555 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,555 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,584 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:00,588 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:47:02,687 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482333,482346] [2021-11-03 04:47:02,690 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482502,482515] [2021-11-03 04:47:02,700 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482669,482682] [2021-11-03 04:47:02,701 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482837,482850] [2021-11-03 04:47:02,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:47:02,863 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 04:47:02,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3c193f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:02, skipping insertion in model container [2021-11-03 04:47:02,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:47:02,865 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:47:02,867 INFO L168 Benchmark]: Toolchain (without parser) took 5237.68 ms. Allocated memory was 107.0 MB in the beginning and 186.6 MB in the end (delta: 79.7 MB). Free memory was 67.0 MB in the beginning and 95.3 MB in the end (delta: -28.3 MB). Peak memory consumption was 63.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:47:02,868 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 107.0 MB. Free memory is still 82.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:47:02,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 5235.46 ms. Allocated memory was 107.0 MB in the beginning and 186.6 MB in the end (delta: 79.7 MB). Free memory was 66.7 MB in the beginning and 95.3 MB in the end (delta: -28.6 MB). Peak memory consumption was 61.8 MB. Max. memory is 16.1 GB. [2021-11-03 04:47:02,871 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 107.0 MB. Free memory is still 82.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 5235.46 ms. Allocated memory was 107.0 MB in the beginning and 186.6 MB in the end (delta: 79.7 MB). Free memory was 66.7 MB in the beginning and 95.3 MB in the end (delta: -28.6 MB). Peak memory consumption was 61.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5970]: 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/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-wireless-prism54-prism54.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/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 03e2d0e28997af6c53edeab79acb28db60116030b3545ebb50af81c3e69fe889 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:47:05,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:47:05,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:47:05,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:47:05,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:47:05,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:47:05,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:47:05,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:47:05,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:47:05,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:47:05,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:47:05,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:47:05,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:47:05,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:47:05,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:47:05,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:47:05,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:47:05,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:47:05,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:47:05,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:47:05,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:47:05,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:47:05,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:47:05,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:47:05,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:47:05,339 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:47:05,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:47:05,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:47:05,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:47:05,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:47:05,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:47:05,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:47:05,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:47:05,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:47:05,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:47:05,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:47:05,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:47:05,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:47:05,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:47:05,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:47:05,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:47:05,354 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:47:05,387 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:47:05,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:47:05,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:47:05,389 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:47:05,389 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:47:05,389 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:47:05,389 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:47:05,389 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:47:05,390 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:47:05,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:47:05,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:47:05,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:47:05,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:47:05,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:47:05,392 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:47:05,392 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:47:05,392 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:47:05,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:47:05,393 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:47:05,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:47:05,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:47:05,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:47:05,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:47:05,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:47:05,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:47:05,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:47:05,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:47:05,395 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:47:05,395 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:47:05,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:47:05,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:47:05,396 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:47:05,396 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03e2d0e28997af6c53edeab79acb28db60116030b3545ebb50af81c3e69fe889 [2021-11-03 04:47:05,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:47:05,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:47:05,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:47:05,787 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:47:05,787 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:47:05,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2021-11-03 04:47:05,872 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/data/d2b18ad86/7f5121a3a89b4690901fea9e493514c0/FLAG2b6780ff8 [2021-11-03 04:47:07,066 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:47:07,067 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2021-11-03 04:47:07,156 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/data/d2b18ad86/7f5121a3a89b4690901fea9e493514c0/FLAG2b6780ff8 [2021-11-03 04:47:07,220 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/data/d2b18ad86/7f5121a3a89b4690901fea9e493514c0 [2021-11-03 04:47:07,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:47:07,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:47:07,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:47:07,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:47:07,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:47:07,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:47:07" (1/1) ... [2021-11-03 04:47:07,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de8a22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:07, skipping insertion in model container [2021-11-03 04:47:07,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:47:07" (1/1) ... [2021-11-03 04:47:07,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:47:07,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:47:12,435 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482333,482346] [2021-11-03 04:47:12,438 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482502,482515] [2021-11-03 04:47:12,439 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482669,482682] [2021-11-03 04:47:12,439 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482837,482850] [2021-11-03 04:47:12,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:47:12,585 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:47:12,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:47:13,340 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482333,482346] [2021-11-03 04:47:13,341 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482502,482515] [2021-11-03 04:47:13,341 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482669,482682] [2021-11-03 04:47:13,342 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482837,482850] [2021-11-03 04:47:13,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:47:13,433 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:47:14,064 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482333,482346] [2021-11-03 04:47:14,065 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482502,482515] [2021-11-03 04:47:14,065 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482669,482682] [2021-11-03 04:47:14,066 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_0d0232a7-0849-4179-9cb9-4de14ad91cf2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i[482837,482850] [2021-11-03 04:47:14,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:47:14,502 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:47:14,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:14 WrapperNode [2021-11-03 04:47:14,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:47:14,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:47:14,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:47:14,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:47:14,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:14" (1/1) ... [2021-11-03 04:47:14,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:14" (1/1) ... [2021-11-03 04:47:17,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:47:17,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:47:17,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:47:17,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:47:17,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:14" (1/1) ... [2021-11-03 04:47:17,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:14" (1/1) ... [2021-11-03 04:47:17,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:14" (1/1) ... [2021-11-03 04:47:17,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:14" (1/1) ... [2021-11-03 04:47:19,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:14" (1/1) ... [2021-11-03 04:47:20,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:14" (1/1) ... [2021-11-03 04:47:20,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:14" (1/1) ... [2021-11-03 04:47:20,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:47:20,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:47:20,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:47:20,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:47:20,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:14" (1/1) ... [2021-11-03 04:47:20,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:47:20,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:47:20,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:47:20,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:47:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2021-11-03 04:47:20,674 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2021-11-03 04:47:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-03 04:47:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2021-11-03 04:47:20,674 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2021-11-03 04:47:20,675 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 04:47:20,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:47:20,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 04:47:20,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:47:20,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:47:20,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:47:20,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:47:20,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:47:20,676 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-03 04:47:20,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 04:47:20,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 04:47:20,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 04:47:20,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 04:47:20,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:47:20,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:47:20,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:47:20,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:47:20,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:47:20,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 04:47:20,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 04:47:20,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 04:47:20,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:47:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:47:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:47:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:47:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 04:47:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:47:20,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:47:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 04:47:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 04:47:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 04:47:20,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 04:57:45,299 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 04:57:45,300 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-03 04:57:45,300 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 04:57:45,300 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 04:57:45,303 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 04:57:45,305 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 04:57:45,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:57:45,410 INFO L299 CfgBuilder]: Removed 15179 assume(true) statements. [2021-11-03 04:57:45,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:57:45 BoogieIcfgContainer [2021-11-03 04:57:45,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:57:45,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:57:45,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:57:45,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:57:45,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:47:07" (1/3) ... [2021-11-03 04:57:45,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7806c518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:57:45, skipping insertion in model container [2021-11-03 04:57:45,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:47:14" (2/3) ... [2021-11-03 04:57:45,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7806c518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:57:45, skipping insertion in model container [2021-11-03 04:57:45,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:57:45" (3/3) ... [2021-11-03 04:57:45,439 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-prism54-prism54.cil.i [2021-11-03 04:57:45,444 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:57:45,444 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 208 error locations. [2021-11-03 04:57:45,538 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:57:45,546 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 04:57:45,548 INFO L340 AbstractCegarLoop]: Starting to check reachability of 208 error locations. [2021-11-03 04:57:45,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 14955 states, 14679 states have (on average 1.354520062674569) internal successors, (19883), 14886 states have internal predecessors, (19883), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2021-11-03 04:57:45,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-03 04:57:45,787 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:57:45,787 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] [2021-11-03 04:57:45,788 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 205 more)] === [2021-11-03 04:57:45,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:57:45,797 INFO L85 PathProgramCache]: Analyzing trace with hash 607482254, now seen corresponding path program 1 times [2021-11-03 04:57:45,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:57:45,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1591506120] [2021-11-03 04:57:45,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:57:45,830 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:57:45,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:57:45,833 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:57:45,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:57:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:57:57,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 5421 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:57:57,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:57:57,253 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 04:57:57,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:57:57,447 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 04:57:57,447 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:57:57,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1591506120] [2021-11-03 04:57:57,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1591506120] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:57:57,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:57:57,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:57:57,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766190272] [2021-11-03 04:57:57,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:57:57,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:57:57,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:57:57,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:57:57,501 INFO L87 Difference]: Start difference. First operand has 14955 states, 14679 states have (on average 1.354520062674569) internal successors, (19883), 14886 states have internal predecessors, (19883), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 04:58:03,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:03,510 INFO L93 Difference]: Finished difference Result 57300 states and 77001 transitions. [2021-11-03 04:58:03,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:58:03,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 33 [2021-11-03 04:58:03,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:03,725 INFO L225 Difference]: With dead ends: 57300 [2021-11-03 04:58:03,725 INFO L226 Difference]: Without dead ends: 41012 [2021-11-03 04:58:03,770 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 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 04:58:03,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41012 states. [2021-11-03 04:58:05,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41012 to 39346. [2021-11-03 04:58:05,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39346 states, 38934 states have (on average 1.2552524785534493) internal successors, (48872), 39141 states have internal predecessors, (48872), 198 states have call successors, (198), 6 states have call predecessors, (198), 6 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2021-11-03 04:58:05,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39346 states to 39346 states and 49268 transitions. [2021-11-03 04:58:05,786 INFO L78 Accepts]: Start accepts. Automaton has 39346 states and 49268 transitions. Word has length 33 [2021-11-03 04:58:05,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:05,790 INFO L470 AbstractCegarLoop]: Abstraction has 39346 states and 49268 transitions. [2021-11-03 04:58:05,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 04:58:05,791 INFO L276 IsEmpty]: Start isEmpty. Operand 39346 states and 49268 transitions. [2021-11-03 04:58:05,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 04:58:05,801 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:05,801 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] [2021-11-03 04:58:05,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 04:58:06,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:58:06,002 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 205 more)] === [2021-11-03 04:58:06,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:06,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1083935826, now seen corresponding path program 1 times [2021-11-03 04:58:06,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:58:06,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662093363] [2021-11-03 04:58:06,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:06,022 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:58:06,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:58:06,023 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:58:06,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:58:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:17,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 5421 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:58:17,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:17,496 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 04:58:17,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:17,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:58:17,822 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:58:17,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662093363] [2021-11-03 04:58:17,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662093363] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:17,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:17,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:58:17,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368444279] [2021-11-03 04:58:17,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:58:17,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:58:17,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:58:17,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:58:17,825 INFO L87 Difference]: Start difference. First operand 39346 states and 49268 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 04:58:26,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:26,876 INFO L93 Difference]: Finished difference Result 156578 states and 196170 transitions. [2021-11-03 04:58:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:58:26,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 37 [2021-11-03 04:58:26,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:27,298 INFO L225 Difference]: With dead ends: 156578 [2021-11-03 04:58:27,298 INFO L226 Difference]: Without dead ends: 117284 [2021-11-03 04:58:27,396 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 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 04:58:27,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117284 states. [2021-11-03 04:58:31,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117284 to 116596. [2021-11-03 04:58:32,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116596 states, 115776 states have (on average 1.255907960199005) internal successors, (145404), 115983 states have internal predecessors, (145404), 594 states have call successors, (594), 18 states have call predecessors, (594), 18 states have return successors, (594), 594 states have call predecessors, (594), 594 states have call successors, (594) [2021-11-03 04:58:32,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116596 states to 116596 states and 146592 transitions. [2021-11-03 04:58:32,821 INFO L78 Accepts]: Start accepts. Automaton has 116596 states and 146592 transitions. Word has length 37 [2021-11-03 04:58:32,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:58:32,821 INFO L470 AbstractCegarLoop]: Abstraction has 116596 states and 146592 transitions. [2021-11-03 04:58:32,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 04:58:32,822 INFO L276 IsEmpty]: Start isEmpty. Operand 116596 states and 146592 transitions. [2021-11-03 04:58:32,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-03 04:58:32,824 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:58:32,824 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:58:32,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:58:33,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:58:33,040 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 205 more)] === [2021-11-03 04:58:33,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:58:33,041 INFO L85 PathProgramCache]: Analyzing trace with hash 801056305, now seen corresponding path program 1 times [2021-11-03 04:58:33,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:58:33,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693674266] [2021-11-03 04:58:33,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:58:33,062 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:58:33,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:58:33,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:58:33,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:58:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:58:44,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 5428 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:58:44,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:58:44,693 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 04:58:44,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:58:44,873 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 04:58:44,873 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:58:44,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693674266] [2021-11-03 04:58:44,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693674266] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:58:44,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:58:44,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:58:44,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949447978] [2021-11-03 04:58:44,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:58:44,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:58:44,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:58:44,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:58:44,875 INFO L87 Difference]: Start difference. First operand 116596 states and 146592 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:58:52,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:58:52,828 INFO L93 Difference]: Finished difference Result 309649 states and 388912 transitions. [2021-11-03 04:58:52,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:58:52,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-03 04:58:52,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:58:53,437 INFO L225 Difference]: With dead ends: 309649 [2021-11-03 04:58:53,437 INFO L226 Difference]: Without dead ends: 193105 [2021-11-03 04:58:53,619 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:58:54,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193105 states. [2021-11-03 04:59:00,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193105 to 191773. [2021-11-03 04:59:00,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191773 states, 190584 states have (on average 1.2543760231708854) internal successors, (239064), 190791 states have internal predecessors, (239064), 945 states have call successors, (945), 36 states have call predecessors, (945), 36 states have return successors, (945), 945 states have call predecessors, (945), 945 states have call successors, (945) [2021-11-03 04:59:01,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191773 states to 191773 states and 240954 transitions. [2021-11-03 04:59:01,582 INFO L78 Accepts]: Start accepts. Automaton has 191773 states and 240954 transitions. Word has length 40 [2021-11-03 04:59:01,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:59:01,583 INFO L470 AbstractCegarLoop]: Abstraction has 191773 states and 240954 transitions. [2021-11-03 04:59:01,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:59:01,583 INFO L276 IsEmpty]: Start isEmpty. Operand 191773 states and 240954 transitions. [2021-11-03 04:59:01,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-03 04:59:01,591 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:59:01,592 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2021-11-03 04:59:01,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:59:01,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:59:01,806 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 205 more)] === [2021-11-03 04:59:01,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:59:01,807 INFO L85 PathProgramCache]: Analyzing trace with hash -261171727, now seen corresponding path program 1 times [2021-11-03 04:59:01,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:59:01,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091975219] [2021-11-03 04:59:01,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:59:01,823 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:59:01,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:59:01,824 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:59:01,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d0232a7-0849-4179-9cb9-4de14ad91cf2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:59:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:59:12,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 5498 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:59:12,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:59:13,291 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:59:13,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:59:13,609 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:59:13,609 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:59:13,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091975219] [2021-11-03 04:59:13,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1091975219] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:59:13,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:59:13,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:59:13,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828756838] [2021-11-03 04:59:13,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:59:13,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:59:13,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:59:13,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:59:13,612 INFO L87 Difference]: Start difference. First operand 191773 states and 240954 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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)