./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.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_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/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_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/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-ethernet-atheros-atl1e-atl1e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/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_8b98d24e-0fdc-4677-b42b-4c238bafa857/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 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:42:13,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:42:13,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:42:13,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:42:13,381 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:42:13,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:42:13,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:42:13,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:42:13,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:42:13,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:42:13,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:42:13,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:42:13,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:42:13,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:42:13,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:42:13,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:42:13,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:42:13,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:42:13,424 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:42:13,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:42:13,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:42:13,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:42:13,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:42:13,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:42:13,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:42:13,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:42:13,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:42:13,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:42:13,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:42:13,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:42:13,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:42:13,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:42:13,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:42:13,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:42:13,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:42:13,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:42:13,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:42:13,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:42:13,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:42:13,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:42:13,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:42:13,459 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:42:13,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:42:13,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:42:13,511 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:42:13,511 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:42:13,511 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:42:13,511 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:42:13,512 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:42:13,512 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:42:13,518 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:42:13,518 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:42:13,519 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:42:13,520 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:42:13,520 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:42:13,520 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:42:13,520 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:42:13,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:42:13,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:42:13,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:42:13,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:42:13,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:42:13,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:42:13,523 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:42:13,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:42:13,523 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:42:13,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:42:13,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:42:13,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:42:13,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:42:13,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:42:13,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:42:13,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:42:13,526 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:42:13,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:42:13,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:42:13,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:42:13,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:42:13,528 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 [2021-11-03 05:42:13,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:42:13,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:42:13,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:42:13,817 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:42:13,818 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:42:13,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-03 05:42:13,905 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/data/d991dc991/a5d806b2f3824055ab0e528edb55afb2/FLAG18a83563e [2021-11-03 05:42:14,947 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:42:14,948 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-03 05:42:15,012 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/data/d991dc991/a5d806b2f3824055ab0e528edb55afb2/FLAG18a83563e [2021-11-03 05:42:15,275 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/data/d991dc991/a5d806b2f3824055ab0e528edb55afb2 [2021-11-03 05:42:15,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:42:15,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:42:15,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:42:15,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:42:15,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:42:15,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:42:15" (1/1) ... [2021-11-03 05:42:15,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d566f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:15, skipping insertion in model container [2021-11-03 05:42:15,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:42:15" (1/1) ... [2021-11-03 05:42:15,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:42:15,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:42:17,895 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 05:42:17,944 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 05:42:17,974 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 05:42:17,975 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 05:42:18,317 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 05:42:20,256 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463113,463126] [2021-11-03 05:42:20,260 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2021-11-03 05:42:20,261 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2021-11-03 05:42:20,261 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2021-11-03 05:42:20,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:42:20,361 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 05:42:20,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@15924b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:20, skipping insertion in model container [2021-11-03 05:42:20,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:42:20,362 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:42:20,365 INFO L168 Benchmark]: Toolchain (without parser) took 5084.08 ms. Allocated memory was 119.5 MB in the beginning and 182.5 MB in the end (delta: 62.9 MB). Free memory was 80.9 MB in the beginning and 98.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 62.7 MB. Max. memory is 16.1 GB. [2021-11-03 05:42:20,366 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 88.1 MB. Free memory was 68.5 MB in the beginning and 68.4 MB in the end (delta: 52.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:42:20,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 5081.73 ms. Allocated memory was 119.5 MB in the beginning and 182.5 MB in the end (delta: 62.9 MB). Free memory was 80.9 MB in the beginning and 98.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 62.7 MB. Max. memory is 16.1 GB. [2021-11-03 05:42:20,370 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 88.1 MB. Free memory was 68.5 MB in the beginning and 68.4 MB in the end (delta: 52.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 5081.73 ms. Allocated memory was 119.5 MB in the beginning and 182.5 MB in the end (delta: 62.9 MB). Free memory was 80.9 MB in the beginning and 98.8 MB in the end (delta: -17.8 MB). Peak memory consumption was 62.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6896]: 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/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_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/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-ethernet-atheros-atl1e-atl1e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/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_8b98d24e-0fdc-4677-b42b-4c238bafa857/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 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:42:22,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:42:22,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:42:22,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:42:22,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:42:22,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:42:22,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:42:22,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:42:22,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:42:22,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:42:22,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:42:22,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:42:22,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:42:22,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:42:22,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:42:22,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:42:22,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:42:22,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:42:22,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:42:22,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:42:22,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:42:22,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:42:22,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:42:22,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:42:22,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:42:22,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:42:22,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:42:22,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:42:22,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:42:22,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:42:22,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:42:22,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:42:22,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:42:22,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:42:22,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:42:22,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:42:22,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:42:22,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:42:22,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:42:22,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:42:22,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:42:22,685 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:42:22,712 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:42:22,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:42:22,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:42:22,714 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:42:22,714 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:42:22,714 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:42:22,715 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:42:22,715 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:42:22,715 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:42:22,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:42:22,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:42:22,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:42:22,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:42:22,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:42:22,717 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:42:22,717 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:42:22,718 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:42:22,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:42:22,718 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:42:22,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:42:22,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:42:22,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:42:22,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:42:22,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:42:22,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:42:22,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:42:22,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:42:22,720 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:42:22,721 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:42:22,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:42:22,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:42:22,721 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:42:22,722 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 [2021-11-03 05:42:23,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:42:23,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:42:23,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:42:23,098 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:42:23,098 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:42:23,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-03 05:42:23,172 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/data/75aba53ff/1c25039ea4be4062800d7770433b453e/FLAG8db786f27 [2021-11-03 05:42:24,290 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:42:24,290 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-03 05:42:24,368 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/data/75aba53ff/1c25039ea4be4062800d7770433b453e/FLAG8db786f27 [2021-11-03 05:42:24,691 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/data/75aba53ff/1c25039ea4be4062800d7770433b453e [2021-11-03 05:42:24,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:42:24,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:42:24,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:42:24,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:42:24,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:42:24,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:42:24" (1/1) ... [2021-11-03 05:42:24,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c354d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:24, skipping insertion in model container [2021-11-03 05:42:24,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:42:24" (1/1) ... [2021-11-03 05:42:24,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:42:25,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:42:29,783 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463113,463126] [2021-11-03 05:42:29,787 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2021-11-03 05:42:29,788 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2021-11-03 05:42:29,788 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2021-11-03 05:42:29,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:42:29,922 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:42:30,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:42:30,525 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463113,463126] [2021-11-03 05:42:30,525 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2021-11-03 05:42:30,526 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2021-11-03 05:42:30,529 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2021-11-03 05:42:30,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:42:30,599 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:42:31,146 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463113,463126] [2021-11-03 05:42:31,146 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2021-11-03 05:42:31,147 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2021-11-03 05:42:31,147 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_8b98d24e-0fdc-4677-b42b-4c238bafa857/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2021-11-03 05:42:31,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:42:31,537 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:42:31,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:31 WrapperNode [2021-11-03 05:42:31,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:42:31,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:42:31,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:42:31,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:42:31,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:31" (1/1) ... [2021-11-03 05:42:31,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:31" (1/1) ... [2021-11-03 05:42:33,082 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:42:33,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:42:33,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:42:33,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:42:33,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:31" (1/1) ... [2021-11-03 05:42:33,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:31" (1/1) ... [2021-11-03 05:42:33,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:31" (1/1) ... [2021-11-03 05:42:33,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:31" (1/1) ... [2021-11-03 05:42:34,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:31" (1/1) ... [2021-11-03 05:42:34,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:31" (1/1) ... [2021-11-03 05:42:34,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:31" (1/1) ... [2021-11-03 05:42:34,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:42:34,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:42:34,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:42:34,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:42:34,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:31" (1/1) ... [2021-11-03 05:42:34,645 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:42:34,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:42:34,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:42:34,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:42:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:42:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 05:42:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:42:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:42:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:42:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:42:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:42:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-03 05:42:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 05:42:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 05:42:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 05:42:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 05:42:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:42:34,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:42:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:42:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:42:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:42:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 05:42:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 05:42:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:42:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:42:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:42:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:42:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:42:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:42:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:42:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:42:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:42:34,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 05:42:34,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:42:34,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:45:59,704 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 05:45:59,705 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-03 05:45:59,706 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 05:45:59,707 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 05:45:59,707 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 05:45:59,709 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 05:45:59,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:45:59,767 INFO L299 CfgBuilder]: Removed 8190 assume(true) statements. [2021-11-03 05:45:59,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:45:59 BoogieIcfgContainer [2021-11-03 05:45:59,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:45:59,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:45:59,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:45:59,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:45:59,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:42:24" (1/3) ... [2021-11-03 05:45:59,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0af72b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:45:59, skipping insertion in model container [2021-11-03 05:45:59,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:42:31" (2/3) ... [2021-11-03 05:45:59,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d0af72b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:45:59, skipping insertion in model container [2021-11-03 05:45:59,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:45:59" (3/3) ... [2021-11-03 05:45:59,789 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-03 05:45:59,795 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:45:59,795 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2021-11-03 05:45:59,887 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:45:59,901 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 05:45:59,902 INFO L340 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2021-11-03 05:46:00,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 7809 states, 7745 states have (on average 1.3404777275661717) internal successors, (10382), 7808 states have internal predecessors, (10382), 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 05:46:00,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-03 05:46:00,052 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:46:00,053 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:00,053 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-03 05:46:00,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:00,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1237294292, now seen corresponding path program 1 times [2021-11-03 05:46:00,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:46:00,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790927895] [2021-11-03 05:46:00,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:00,082 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:46:00,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:46:00,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:46:00,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:46:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:05,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 2091 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:46:05,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:06,283 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 05:46:06,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:06,556 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 05:46:06,557 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:46:06,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790927895] [2021-11-03 05:46:06,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790927895] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:06,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:06,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:46:06,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862689476] [2021-11-03 05:46:06,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:46:06,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:46:06,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:46:06,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:46:06,596 INFO L87 Difference]: Start difference. First operand has 7809 states, 7745 states have (on average 1.3404777275661717) internal successors, (10382), 7808 states have internal predecessors, (10382), 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 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:10,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:10,422 INFO L93 Difference]: Finished difference Result 26067 states and 34622 transitions. [2021-11-03 05:46:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:46:10,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-03 05:46:10,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:10,551 INFO L225 Difference]: With dead ends: 26067 [2021-11-03 05:46:10,551 INFO L226 Difference]: Without dead ends: 18034 [2021-11-03 05:46:10,576 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 114 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 05:46:10,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18034 states. [2021-11-03 05:46:11,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18034 to 16914. [2021-11-03 05:46:11,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16914 states, 16850 states have (on average 1.3153115727002966) internal successors, (22163), 16913 states have internal predecessors, (22163), 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 05:46:11,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16914 states to 16914 states and 22163 transitions. [2021-11-03 05:46:11,440 INFO L78 Accepts]: Start accepts. Automaton has 16914 states and 22163 transitions. Word has length 59 [2021-11-03 05:46:11,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:11,443 INFO L470 AbstractCegarLoop]: Abstraction has 16914 states and 22163 transitions. [2021-11-03 05:46:11,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:11,444 INFO L276 IsEmpty]: Start isEmpty. Operand 16914 states and 22163 transitions. [2021-11-03 05:46:11,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 05:46:11,450 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:46:11,451 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:11,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:11,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:46:11,656 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-03 05:46:11,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:11,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1476927092, now seen corresponding path program 1 times [2021-11-03 05:46:11,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:46:11,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996521970] [2021-11-03 05:46:11,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:11,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:46:11,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:46:11,661 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:46:11,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:46:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:16,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 2097 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:46:16,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:17,222 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 05:46:17,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:17,461 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 05:46:17,462 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:46:17,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996521970] [2021-11-03 05:46:17,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996521970] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:17,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:17,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:46:17,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062503529] [2021-11-03 05:46:17,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:46:17,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:46:17,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:46:17,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:46:17,465 INFO L87 Difference]: Start difference. First operand 16914 states and 22163 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 05:46:21,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:21,883 INFO L93 Difference]: Finished difference Result 66662 states and 87586 transitions. [2021-11-03 05:46:21,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:46:21,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 60 [2021-11-03 05:46:21,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:22,088 INFO L225 Difference]: With dead ends: 66662 [2021-11-03 05:46:22,089 INFO L226 Difference]: Without dead ends: 49864 [2021-11-03 05:46:22,131 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 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 05:46:22,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49864 states. [2021-11-03 05:46:24,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49864 to 49800. [2021-11-03 05:46:24,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49800 states, 49736 states have (on average 1.3168931960752774) internal successors, (65497), 49799 states have internal predecessors, (65497), 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 05:46:24,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49800 states to 49800 states and 65497 transitions. [2021-11-03 05:46:24,365 INFO L78 Accepts]: Start accepts. Automaton has 49800 states and 65497 transitions. Word has length 60 [2021-11-03 05:46:24,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:24,366 INFO L470 AbstractCegarLoop]: Abstraction has 49800 states and 65497 transitions. [2021-11-03 05:46:24,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 05:46:24,367 INFO L276 IsEmpty]: Start isEmpty. Operand 49800 states and 65497 transitions. [2021-11-03 05:46:24,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-03 05:46:24,368 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:46:24,368 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:24,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:24,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:46:24,592 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-03 05:46:24,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:24,592 INFO L85 PathProgramCache]: Analyzing trace with hash -2090903688, now seen corresponding path program 1 times [2021-11-03 05:46:24,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:46:24,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348435955] [2021-11-03 05:46:24,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:24,598 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:46:24,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:46:24,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:46:24,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:46:29,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:30,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 2121 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:46:30,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:30,306 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 05:46:30,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:30,726 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 05:46:30,726 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:46:30,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348435955] [2021-11-03 05:46:30,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348435955] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:30,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:30,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:46:30,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223571645] [2021-11-03 05:46:30,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:46:30,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:46:30,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:46:30,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:46:30,729 INFO L87 Difference]: Start difference. First operand 49800 states and 65497 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:37,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:37,279 INFO L93 Difference]: Finished difference Result 193595 states and 254828 transitions. [2021-11-03 05:46:37,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:46:37,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-03 05:46:37,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:37,736 INFO L225 Difference]: With dead ends: 193595 [2021-11-03 05:46:37,736 INFO L226 Difference]: Without dead ends: 143911 [2021-11-03 05:46:37,891 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 120 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 05:46:38,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143911 states. [2021-11-03 05:46:43,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143911 to 141429. [2021-11-03 05:46:43,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141429 states, 141365 states have (on average 1.3198457892689137) internal successors, (186580), 141428 states have internal predecessors, (186580), 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 05:46:43,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141429 states to 141429 states and 186580 transitions. [2021-11-03 05:46:43,928 INFO L78 Accepts]: Start accepts. Automaton has 141429 states and 186580 transitions. Word has length 62 [2021-11-03 05:46:43,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:43,929 INFO L470 AbstractCegarLoop]: Abstraction has 141429 states and 186580 transitions. [2021-11-03 05:46:43,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:43,929 INFO L276 IsEmpty]: Start isEmpty. Operand 141429 states and 186580 transitions. [2021-11-03 05:46:43,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-03 05:46:43,932 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:46:43,933 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 05:46:43,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:44,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:46:44,136 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-03 05:46:44,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:44,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1136047947, now seen corresponding path program 1 times [2021-11-03 05:46:44,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:46:44,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534948987] [2021-11-03 05:46:44,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:44,139 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:46:44,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:46:44,141 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:46:44,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b98d24e-0fdc-4677-b42b-4c238bafa857/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:46:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:49,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 2117 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:46:49,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:49,669 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:49,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:49,998 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:49,998 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:46:49,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534948987] [2021-11-03 05:46:49,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534948987] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:49,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:49,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:46:49,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103423875] [2021-11-03 05:46:50,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:46:50,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:46:50,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:46:50,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:46:50,001 INFO L87 Difference]: Start difference. First operand 141429 states and 186580 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 05:46:59,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:59,720 INFO L93 Difference]: Finished difference Result 350714 states and 462556 transitions. [2021-11-03 05:46:59,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:46:59,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-03 05:46:59,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:47:00,178 INFO L225 Difference]: With dead ends: 350714 [2021-11-03 05:47:00,178 INFO L226 Difference]: Without dead ends: 209401 [2021-11-03 05:47:00,331 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 144 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 05:47:00,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209401 states.