./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-micrel-ksz884x.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_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/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_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/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-micrel-ksz884x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/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_ca39ba92-e412-4830-bd32-8c4e691e914f/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 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:03:27,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:03:27,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:03:27,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:03:27,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:03:27,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:03:27,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:03:27,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:03:27,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:03:27,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:03:27,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:03:27,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:03:27,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:03:27,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:03:27,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:03:27,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:03:27,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:03:27,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:03:27,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:03:27,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:03:27,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:03:27,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:03:27,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:03:27,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:03:27,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:03:27,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:03:27,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:03:27,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:03:27,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:03:27,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:03:27,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:03:27,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:03:27,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:03:27,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:03:27,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:03:27,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:03:27,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:03:27,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:03:27,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:03:27,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:03:27,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:03:27,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:03:27,582 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:03:27,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:03:27,583 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:03:27,584 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:03:27,584 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:03:27,584 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:03:27,584 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:03:27,585 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:03:27,585 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:03:27,585 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:03:27,585 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:03:27,586 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:03:27,586 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:03:27,586 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:03:27,587 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:03:27,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:03:27,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:03:27,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:03:27,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:03:27,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:03:27,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:03:27,589 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:03:27,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:03:27,590 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:03:27,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:03:27,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:03:27,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:03:27,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:03:27,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:03:27,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:03:27,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:03:27,592 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:03:27,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:03:27,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:03:27,593 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:03:27,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:03:27,594 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_ca39ba92-e412-4830-bd32-8c4e691e914f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 [2021-11-03 05:03:27,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:03:28,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:03:28,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:03:28,019 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:03:28,020 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:03:28,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-03 05:03:28,098 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/data/f38733bc2/bfccb8695fb0423d9fae41cf9962721a/FLAG866328f36 [2021-11-03 05:03:29,389 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:03:29,391 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-03 05:03:29,492 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/data/f38733bc2/bfccb8695fb0423d9fae41cf9962721a/FLAG866328f36 [2021-11-03 05:03:29,991 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/data/f38733bc2/bfccb8695fb0423d9fae41cf9962721a [2021-11-03 05:03:29,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:03:29,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:03:29,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:03:29,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:03:30,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:03:30,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:03:29" (1/1) ... [2021-11-03 05:03:30,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b124eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:30, skipping insertion in model container [2021-11-03 05:03:30,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:03:29" (1/1) ... [2021-11-03 05:03:30,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:03:30,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:03:33,575 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 05:03:33,584 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 05:03:33,593 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 05:03:34,351 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 05:03:34,352 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 05:03:34,604 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 05:03:36,395 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2021-11-03 05:03:36,403 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2021-11-03 05:03:36,405 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2021-11-03 05:03:36,405 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2021-11-03 05:03:36,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:03:36,586 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 05:03:36,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7586d511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:36, skipping insertion in model container [2021-11-03 05:03:36,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:03:36,588 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:03:36,591 INFO L168 Benchmark]: Toolchain (without parser) took 6592.87 ms. Allocated memory was 117.4 MB in the beginning and 186.6 MB in the end (delta: 69.2 MB). Free memory was 80.0 MB in the beginning and 82.9 MB in the end (delta: -2.9 MB). Peak memory consumption was 84.8 MB. Max. memory is 16.1 GB. [2021-11-03 05:03:36,592 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 117.4 MB. Free memory was 93.2 MB in the beginning and 93.1 MB in the end (delta: 62.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:03:36,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 6589.78 ms. Allocated memory was 117.4 MB in the beginning and 186.6 MB in the end (delta: 69.2 MB). Free memory was 80.0 MB in the beginning and 82.9 MB in the end (delta: -2.9 MB). Peak memory consumption was 84.8 MB. Max. memory is 16.1 GB. [2021-11-03 05:03:36,597 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 117.4 MB. Free memory was 93.2 MB in the beginning and 93.1 MB in the end (delta: 62.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 6589.78 ms. Allocated memory was 117.4 MB in the beginning and 186.6 MB in the end (delta: 69.2 MB). Free memory was 80.0 MB in the beginning and 82.9 MB in the end (delta: -2.9 MB). Peak memory consumption was 84.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6624]: 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_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/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_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/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-micrel-ksz884x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/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_ca39ba92-e412-4830-bd32-8c4e691e914f/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 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:03:39,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:03:39,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:03:39,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:03:39,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:03:39,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:03:39,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:03:39,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:03:39,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:03:39,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:03:39,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:03:39,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:03:39,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:03:39,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:03:39,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:03:39,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:03:39,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:03:39,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:03:39,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:03:39,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:03:39,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:03:39,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:03:39,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:03:39,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:03:39,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:03:39,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:03:39,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:03:39,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:03:39,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:03:39,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:03:39,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:03:39,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:03:39,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:03:39,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:03:39,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:03:39,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:03:39,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:03:39,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:03:39,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:03:39,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:03:39,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:03:39,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:03:39,575 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:03:39,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:03:39,577 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:03:39,577 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:03:39,577 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:03:39,577 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:03:39,578 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:03:39,578 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:03:39,578 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:03:39,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:03:39,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:03:39,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:03:39,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:03:39,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:03:39,580 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:03:39,581 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:03:39,581 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:03:39,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:03:39,581 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:03:39,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:03:39,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:03:39,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:03:39,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:03:39,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:03:39,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:03:39,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:03:39,583 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:03:39,584 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:03:39,584 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:03:39,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:03:39,584 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:03:39,584 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:03:39,585 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_ca39ba92-e412-4830-bd32-8c4e691e914f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 [2021-11-03 05:03:40,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:03:40,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:03:40,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:03:40,114 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:03:40,115 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:03:40,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-03 05:03:40,193 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/data/0f2914ed9/0b859718caf047a5852fddb7bb49279f/FLAG1f058d5ff [2021-11-03 05:03:41,629 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:03:41,631 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-03 05:03:41,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/data/0f2914ed9/0b859718caf047a5852fddb7bb49279f/FLAG1f058d5ff [2021-11-03 05:03:41,752 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/data/0f2914ed9/0b859718caf047a5852fddb7bb49279f [2021-11-03 05:03:41,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:03:41,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:03:41,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:03:41,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:03:41,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:03:41,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:03:41" (1/1) ... [2021-11-03 05:03:41,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc7c7b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:41, skipping insertion in model container [2021-11-03 05:03:41,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:03:41" (1/1) ... [2021-11-03 05:03:41,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:03:42,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:03:48,111 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2021-11-03 05:03:48,114 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2021-11-03 05:03:48,115 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2021-11-03 05:03:48,115 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2021-11-03 05:03:48,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:03:48,268 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:03:48,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:03:49,004 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2021-11-03 05:03:49,005 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2021-11-03 05:03:49,006 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2021-11-03 05:03:49,006 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2021-11-03 05:03:49,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:03:49,082 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:03:49,813 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2021-11-03 05:03:49,814 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2021-11-03 05:03:49,815 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2021-11-03 05:03:49,816 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_ca39ba92-e412-4830-bd32-8c4e691e914f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2021-11-03 05:03:49,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:03:50,301 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:03:50,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:50 WrapperNode [2021-11-03 05:03:50,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:03:50,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:03:50,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:03:50,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:03:50,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:50" (1/1) ... [2021-11-03 05:03:50,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:50" (1/1) ... [2021-11-03 05:03:52,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:03:52,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:03:52,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:03:52,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:03:52,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:50" (1/1) ... [2021-11-03 05:03:52,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:50" (1/1) ... [2021-11-03 05:03:53,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:50" (1/1) ... [2021-11-03 05:03:53,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:50" (1/1) ... [2021-11-03 05:03:54,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:50" (1/1) ... [2021-11-03 05:03:55,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:50" (1/1) ... [2021-11-03 05:03:55,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:50" (1/1) ... [2021-11-03 05:03:55,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:03:55,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:03:55,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:03:55,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:03:55,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:50" (1/1) ... [2021-11-03 05:03:55,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:03:55,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:03:55,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:03:55,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:03:55,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:03:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:03:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:03:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:03:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:03:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:03:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 05:03:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 05:03:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 05:03:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 05:03:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:03:55,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:03:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:03:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:03:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:03:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 05:03:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 05:03:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:03:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:03:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:03:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:03:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:03:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:03:55,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:03:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:03:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:03:55,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 05:03:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:03:55,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:13:52,235 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 05:13:52,236 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-03 05:13:52,236 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 05:13:52,237 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 05:13:52,239 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 05:13:52,241 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 05:13:52,311 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:13:52,312 INFO L299 CfgBuilder]: Removed 9514 assume(true) statements. [2021-11-03 05:13:52,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:13:52 BoogieIcfgContainer [2021-11-03 05:13:52,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:13:52,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:13:52,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:13:52,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:13:52,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:03:41" (1/3) ... [2021-11-03 05:13:52,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be29755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:13:52, skipping insertion in model container [2021-11-03 05:13:52,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:03:50" (2/3) ... [2021-11-03 05:13:52,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be29755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:13:52, skipping insertion in model container [2021-11-03 05:13:52,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:13:52" (3/3) ... [2021-11-03 05:13:52,337 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-03 05:13:52,343 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:13:52,343 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 69 error locations. [2021-11-03 05:13:52,430 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:13:52,446 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 05:13:52,446 INFO L340 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2021-11-03 05:13:52,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 9011 states, 8942 states have (on average 1.3325877879668977) internal successors, (11916), 9010 states have internal predecessors, (11916), 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 05:13:52,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-03 05:13:52,607 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:13:52,608 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:13:52,609 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:13:52,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:13:52,619 INFO L85 PathProgramCache]: Analyzing trace with hash -105954818, now seen corresponding path program 1 times [2021-11-03 05:13:52,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:13:52,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324694404] [2021-11-03 05:13:52,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:13:52,639 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:13:52,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:13:52,642 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:13:52,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:13:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:13:55,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 2216 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:13:55,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:13:56,595 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 05:13:56,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:13:57,330 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 05:13:57,331 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:13:57,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324694404] [2021-11-03 05:13:57,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324694404] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:13:57,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:13:57,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:13:57,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383648077] [2021-11-03 05:13:57,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:13:57,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:13:57,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:13:57,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:13:57,375 INFO L87 Difference]: Start difference. First operand has 9011 states, 8942 states have (on average 1.3325877879668977) internal successors, (11916), 9010 states have internal predecessors, (11916), 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 20.5) internal successors, (82), 4 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) [2021-11-03 05:14:03,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:03,440 INFO L93 Difference]: Finished difference Result 34255 states and 45325 transitions. [2021-11-03 05:14:03,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:14:03,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 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) Word has length 73 [2021-11-03 05:14:03,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:03,638 INFO L225 Difference]: With dead ends: 34255 [2021-11-03 05:14:03,638 INFO L226 Difference]: Without dead ends: 24801 [2021-11-03 05:14:03,675 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:14:03,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24801 states. [2021-11-03 05:14:04,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24801 to 24005. [2021-11-03 05:14:04,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24005 states, 23936 states have (on average 1.3075284090909092) internal successors, (31297), 24004 states have internal predecessors, (31297), 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 05:14:04,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24005 states to 24005 states and 31297 transitions. [2021-11-03 05:14:04,928 INFO L78 Accepts]: Start accepts. Automaton has 24005 states and 31297 transitions. Word has length 73 [2021-11-03 05:14:04,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:14:04,930 INFO L470 AbstractCegarLoop]: Abstraction has 24005 states and 31297 transitions. [2021-11-03 05:14:04,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 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) [2021-11-03 05:14:04,932 INFO L276 IsEmpty]: Start isEmpty. Operand 24005 states and 31297 transitions. [2021-11-03 05:14:04,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-03 05:14:04,939 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:04,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:14:05,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:14:05,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:14:05,154 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:14:05,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:05,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1581454207, now seen corresponding path program 1 times [2021-11-03 05:14:05,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:14:05,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873358819] [2021-11-03 05:14:05,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:05,159 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:14:05,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:14:05,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:14:05,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:14:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:08,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 2204 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:14:08,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:14:09,204 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 05:14:09,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:14:09,991 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 05:14:09,991 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:14:09,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873358819] [2021-11-03 05:14:09,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873358819] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:09,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:09,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:14:09,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318332734] [2021-11-03 05:14:09,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:14:09,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:14:09,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:14:09,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:14:09,998 INFO L87 Difference]: Start difference. First operand 24005 states and 31297 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 05:14:16,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:16,180 INFO L93 Difference]: Finished difference Result 95002 states and 124083 transitions. [2021-11-03 05:14:16,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:14:16,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 75 [2021-11-03 05:14:16,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:16,467 INFO L225 Difference]: With dead ends: 95002 [2021-11-03 05:14:16,468 INFO L226 Difference]: Without dead ends: 71153 [2021-11-03 05:14:16,555 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:14:16,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71153 states. [2021-11-03 05:14:19,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71153 to 71021. [2021-11-03 05:14:19,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71021 states, 70952 states have (on average 1.308927162025031) internal successors, (92871), 71020 states have internal predecessors, (92871), 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 05:14:20,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71021 states to 71021 states and 92871 transitions. [2021-11-03 05:14:20,033 INFO L78 Accepts]: Start accepts. Automaton has 71021 states and 92871 transitions. Word has length 75 [2021-11-03 05:14:20,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:14:20,036 INFO L470 AbstractCegarLoop]: Abstraction has 71021 states and 92871 transitions. [2021-11-03 05:14:20,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 05:14:20,036 INFO L276 IsEmpty]: Start isEmpty. Operand 71021 states and 92871 transitions. [2021-11-03 05:14:20,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-03 05:14:20,038 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:20,038 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:14:20,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:14:20,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:14:20,254 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:14:20,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:20,254 INFO L85 PathProgramCache]: Analyzing trace with hash 428041036, now seen corresponding path program 1 times [2021-11-03 05:14:20,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:14:20,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188774957] [2021-11-03 05:14:20,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:20,259 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:14:20,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:14:20,267 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:14:20,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:14:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:23,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 2241 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:14:23,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:14:24,319 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 05:14:24,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:14:25,155 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 05:14:25,155 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:14:25,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188774957] [2021-11-03 05:14:25,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188774957] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:25,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:25,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:14:25,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400024533] [2021-11-03 05:14:25,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:14:25,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:14:25,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:14:25,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:14:25,158 INFO L87 Difference]: Start difference. First operand 71021 states and 92871 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 05:14:34,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:34,544 INFO L93 Difference]: Finished difference Result 257564 states and 336372 transitions. [2021-11-03 05:14:34,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:14:34,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 79 [2021-11-03 05:14:34,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:35,438 INFO L225 Difference]: With dead ends: 257564 [2021-11-03 05:14:35,438 INFO L226 Difference]: Without dead ends: 186699 [2021-11-03 05:14:35,706 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:14:35,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186699 states. [2021-11-03 05:14:42,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186699 to 184472. [2021-11-03 05:14:42,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184472 states, 184403 states have (on average 1.307256389538131) internal successors, (241062), 184471 states have internal predecessors, (241062), 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 05:14:43,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184472 states to 184472 states and 241062 transitions. [2021-11-03 05:14:43,257 INFO L78 Accepts]: Start accepts. Automaton has 184472 states and 241062 transitions. Word has length 79 [2021-11-03 05:14:43,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:14:43,258 INFO L470 AbstractCegarLoop]: Abstraction has 184472 states and 241062 transitions. [2021-11-03 05:14:43,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 05:14:43,258 INFO L276 IsEmpty]: Start isEmpty. Operand 184472 states and 241062 transitions. [2021-11-03 05:14:43,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-03 05:14:43,261 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:43,261 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:14:43,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 05:14:43,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:14:43,490 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-03 05:14:43,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:43,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1875511950, now seen corresponding path program 1 times [2021-11-03 05:14:43,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:14:43,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183267710] [2021-11-03 05:14:43,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:43,496 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:14:43,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:14:43,509 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:14:43,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca39ba92-e412-4830-bd32-8c4e691e914f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:14:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:46,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 2273 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:14:46,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:14:47,445 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 05:14:47,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:14:48,397 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 05:14:48,398 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:14:48,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183267710] [2021-11-03 05:14:48,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183267710] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:48,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:48,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:14:48,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280757239] [2021-11-03 05:14:48,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:14:48,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:14:48,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:14:48,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:14:48,400 INFO L87 Difference]: Start difference. First operand 184472 states and 241062 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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)