./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.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_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/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_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/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_23d1a629-ba94-4dec-98d5-548deee99740/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 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:26:17,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:26:17,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:26:17,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:26:17,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:26:17,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:26:17,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:26:17,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:26:17,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:26:17,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:26:17,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:26:17,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:26:17,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:26:17,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:26:17,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:26:17,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:26:17,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:26:17,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:26:17,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:26:17,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:26:17,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:26:17,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:26:17,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:26:17,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:26:17,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:26:17,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:26:17,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:26:17,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:26:17,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:26:17,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:26:17,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:26:17,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:26:17,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:26:17,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:26:17,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:26:17,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:26:17,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:26:17,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:26:17,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:26:17,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:26:17,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:26:17,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:26:17,727 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:26:17,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:26:17,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:26:17,733 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:26:17,733 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:26:17,733 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:26:17,733 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:26:17,734 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:26:17,740 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:26:17,740 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:26:17,741 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:26:17,741 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:26:17,741 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:26:17,742 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:26:17,742 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:26:17,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:26:17,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:26:17,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:26:17,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:26:17,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:26:17,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:26:17,744 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:26:17,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:26:17,744 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:26:17,744 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:26:17,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:26:17,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:26:17,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:26:17,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:26:17,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:26:17,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:26:17,747 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:26:17,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:26:17,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:26:17,748 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:26:17,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:26:17,749 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_23d1a629-ba94-4dec-98d5-548deee99740/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 [2021-11-03 05:26:17,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:26:17,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:26:18,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:26:18,003 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:26:18,004 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:26:18,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-03 05:26:18,068 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/data/68cccc0f1/82aab9a1e801436a8e1e28aae22be69c/FLAG577c9decd [2021-11-03 05:26:19,044 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:26:19,045 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-03 05:26:19,097 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/data/68cccc0f1/82aab9a1e801436a8e1e28aae22be69c/FLAG577c9decd [2021-11-03 05:26:19,409 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/data/68cccc0f1/82aab9a1e801436a8e1e28aae22be69c [2021-11-03 05:26:19,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:26:19,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:26:19,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:26:19,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:26:19,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:26:19,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:26:19" (1/1) ... [2021-11-03 05:26:19,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c748962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:19, skipping insertion in model container [2021-11-03 05:26:19,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:26:19" (1/1) ... [2021-11-03 05:26:19,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:26:19,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:26:22,880 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 05:26:22,949 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 05:26:22,950 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 05:26:23,094 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 05:26:23,172 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 05:26:24,400 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_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2021-11-03 05:26:24,402 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_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2021-11-03 05:26:24,403 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_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2021-11-03 05:26:24,403 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_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2021-11-03 05:26:24,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:26:24,549 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 05:26:24,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@56b16f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:24, skipping insertion in model container [2021-11-03 05:26:24,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:26:24,553 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:26:24,556 INFO L168 Benchmark]: Toolchain (without parser) took 5138.96 ms. Allocated memory was 123.7 MB in the beginning and 169.9 MB in the end (delta: 46.1 MB). Free memory was 89.4 MB in the beginning and 103.7 MB in the end (delta: -14.3 MB). Peak memory consumption was 80.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:26:24,557 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 123.7 MB. Free memory is still 102.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:26:24,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 5136.39 ms. Allocated memory was 123.7 MB in the beginning and 169.9 MB in the end (delta: 46.1 MB). Free memory was 89.3 MB in the beginning and 103.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 80.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:26:24,560 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 123.7 MB. Free memory is still 102.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 5136.39 ms. Allocated memory was 123.7 MB in the beginning and 169.9 MB in the end (delta: 46.1 MB). Free memory was 89.3 MB in the beginning and 103.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 80.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7050]: 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_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/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_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/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_23d1a629-ba94-4dec-98d5-548deee99740/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 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:26:26,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:26:26,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:26:26,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:26:26,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:26:26,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:26:26,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:26:26,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:26:26,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:26:26,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:26:26,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:26:26,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:26:26,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:26:26,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:26:26,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:26:26,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:26:26,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:26:26,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:26:26,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:26:26,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:26:26,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:26:26,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:26:26,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:26:26,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:26:26,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:26:26,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:26:26,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:26:26,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:26:26,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:26:26,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:26:26,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:26:26,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:26:26,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:26:26,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:26:26,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:26:26,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:26:26,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:26:26,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:26:26,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:26:26,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:26:26,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:26:26,824 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:26:26,869 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:26:26,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:26:26,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:26:26,870 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:26:26,871 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:26:26,871 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:26:26,871 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:26:26,871 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:26:26,872 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:26:26,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:26:26,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:26:26,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:26:26,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:26:26,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:26:26,875 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:26:26,875 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:26:26,875 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:26:26,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:26:26,875 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:26:26,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:26:26,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:26:26,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:26:26,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:26:26,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:26:26,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:26:26,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:26:26,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:26:26,877 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:26:26,877 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:26:26,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:26:26,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:26:26,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:26:26,878 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_23d1a629-ba94-4dec-98d5-548deee99740/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14116a47f3f4a2a033e7a89d50301476fe518641457365dd95d98c606e6851b5 [2021-11-03 05:26:27,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:26:27,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:26:27,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:26:27,309 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:26:27,311 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:26:27,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-03 05:26:27,390 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/data/3a9ad8052/aba0d4afe9cf4671910cb61dfcb1f2ba/FLAG851f8a919 [2021-11-03 05:26:28,491 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:26:28,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-03 05:26:28,585 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/data/3a9ad8052/aba0d4afe9cf4671910cb61dfcb1f2ba/FLAG851f8a919 [2021-11-03 05:26:28,883 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/data/3a9ad8052/aba0d4afe9cf4671910cb61dfcb1f2ba [2021-11-03 05:26:28,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:26:28,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:26:28,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:26:28,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:26:28,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:26:28,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:26:28" (1/1) ... [2021-11-03 05:26:28,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@477fd908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:28, skipping insertion in model container [2021-11-03 05:26:28,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:26:28" (1/1) ... [2021-11-03 05:26:28,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:26:29,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:26:33,965 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_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2021-11-03 05:26:33,974 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_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2021-11-03 05:26:33,974 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_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2021-11-03 05:26:33,977 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_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2021-11-03 05:26:34,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:26:34,097 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:26:34,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:26:34,714 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_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2021-11-03 05:26:34,714 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_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2021-11-03 05:26:34,715 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_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2021-11-03 05:26:34,718 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2021-11-03 05:26:34,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:26:34,770 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:26:35,341 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485804,485817] [2021-11-03 05:26:35,342 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[485973,485986] [2021-11-03 05:26:35,342 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486140,486153] [2021-11-03 05:26:35,343 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_23d1a629-ba94-4dec-98d5-548deee99740/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[486308,486321] [2021-11-03 05:26:35,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:26:35,794 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:26:35,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:35 WrapperNode [2021-11-03 05:26:35,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:26:35,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:26:35,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:26:35,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:26:35,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:35" (1/1) ... [2021-11-03 05:26:35,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:35" (1/1) ... [2021-11-03 05:26:37,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:26:37,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:26:37,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:26:37,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:26:37,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:35" (1/1) ... [2021-11-03 05:26:37,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:35" (1/1) ... [2021-11-03 05:26:38,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:35" (1/1) ... [2021-11-03 05:26:38,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:35" (1/1) ... [2021-11-03 05:26:39,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:35" (1/1) ... [2021-11-03 05:26:39,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:35" (1/1) ... [2021-11-03 05:26:39,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:35" (1/1) ... [2021-11-03 05:26:39,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:26:39,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:26:39,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:26:39,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:26:39,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:35" (1/1) ... [2021-11-03 05:26:39,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:26:39,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:26:39,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:26:39,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:26:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2021-11-03 05:26:39,980 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2021-11-03 05:26:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:26:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:26:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:26:39,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:26:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:26:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:26:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 05:26:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 05:26:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 05:26:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2021-11-03 05:26:39,981 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2021-11-03 05:26:39,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 05:26:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2021-11-03 05:26:39,982 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2021-11-03 05:26:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:26:39,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:26:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2021-11-03 05:26:39,982 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2021-11-03 05:26:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:26:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:26:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:26:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 05:26:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 05:26:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:26:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2021-11-03 05:26:39,984 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2021-11-03 05:26:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2021-11-03 05:26:39,984 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2021-11-03 05:26:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:26:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:26:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-03 05:26:39,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-03 05:26:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:26:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:26:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:26:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:26:39,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:26:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-03 05:26:39,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-03 05:26:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2021-11-03 05:26:39,986 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2021-11-03 05:26:39,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:26:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 05:26:39,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:26:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:26:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2021-11-03 05:26:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2021-11-03 05:26:39,988 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-03 05:35:16,746 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 05:35:16,747 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-03 05:35:16,747 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 05:35:16,748 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 05:35:16,750 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 05:35:16,751 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 05:35:16,824 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:35:16,824 INFO L299 CfgBuilder]: Removed 9691 assume(true) statements. [2021-11-03 05:35:16,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:35:16 BoogieIcfgContainer [2021-11-03 05:35:16,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:35:16,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:35:16,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:35:16,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:35:16,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:26:28" (1/3) ... [2021-11-03 05:35:16,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd33c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:35:16, skipping insertion in model container [2021-11-03 05:35:16,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:26:35" (2/3) ... [2021-11-03 05:35:16,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd33c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:35:16, skipping insertion in model container [2021-11-03 05:35:16,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:35:16" (3/3) ... [2021-11-03 05:35:16,844 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2021-11-03 05:35:16,849 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:35:16,849 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-11-03 05:35:16,922 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:35:16,926 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 05:35:16,926 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-11-03 05:35:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 9382 states, 9215 states have (on average 1.3274009766684753) internal successors, (12232), 9256 states have internal predecessors, (12232), 115 states have call successors, (115), 10 states have call predecessors, (115), 10 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2021-11-03 05:35:17,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-03 05:35:17,079 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:35:17,080 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:35:17,081 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-03 05:35:17,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:35:17,086 INFO L85 PathProgramCache]: Analyzing trace with hash -623206203, now seen corresponding path program 1 times [2021-11-03 05:35:17,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:35:17,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683497517] [2021-11-03 05:35:17,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:35:17,104 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:35:17,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:35:17,111 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:35:17,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:35:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:35:20,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:35:20,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:35:20,542 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 05:35:20,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:35:20,803 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 05:35:20,804 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:35:20,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683497517] [2021-11-03 05:35:20,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683497517] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:35:20,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:35:20,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:35:20,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737945545] [2021-11-03 05:35:20,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:35:20,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:35:20,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:35:20,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:35:20,846 INFO L87 Difference]: Start difference. First operand has 9382 states, 9215 states have (on average 1.3274009766684753) internal successors, (12232), 9256 states have internal predecessors, (12232), 115 states have call successors, (115), 10 states have call predecessors, (115), 10 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 05:35:26,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:35:26,777 INFO L93 Difference]: Finished difference Result 36322 states and 48304 transitions. [2021-11-03 05:35:26,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:35:26,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 90 [2021-11-03 05:35:26,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:35:26,990 INFO L225 Difference]: With dead ends: 36322 [2021-11-03 05:35:26,991 INFO L226 Difference]: Without dead ends: 26424 [2021-11-03 05:35:27,036 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 176 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 05:35:27,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26424 states. [2021-11-03 05:35:28,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26424 to 26424. [2021-11-03 05:35:28,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26424 states, 26007 states have (on average 1.2863459837735993) internal successors, (33454), 26048 states have internal predecessors, (33454), 345 states have call successors, (345), 30 states have call predecessors, (345), 30 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2021-11-03 05:35:28,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26424 states to 26424 states and 34144 transitions. [2021-11-03 05:35:28,581 INFO L78 Accepts]: Start accepts. Automaton has 26424 states and 34144 transitions. Word has length 90 [2021-11-03 05:35:28,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:35:28,584 INFO L470 AbstractCegarLoop]: Abstraction has 26424 states and 34144 transitions. [2021-11-03 05:35:28,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 05:35:28,585 INFO L276 IsEmpty]: Start isEmpty. Operand 26424 states and 34144 transitions. [2021-11-03 05:35:28,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-03 05:35:28,599 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:35:28,600 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:35:28,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:35:28,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:35:28,816 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-03 05:35:28,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:35:28,817 INFO L85 PathProgramCache]: Analyzing trace with hash 447192805, now seen corresponding path program 1 times [2021-11-03 05:35:28,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:35:28,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874314407] [2021-11-03 05:35:28,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:35:28,819 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:35:28,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:35:28,822 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:35:28,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:35:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:35:31,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 2017 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:35:31,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:35:32,303 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:32,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:35:32,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:35:32,625 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:35:32,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1874314407] [2021-11-03 05:35:32,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1874314407] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:35:32,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:35:32,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:35:32,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271677413] [2021-11-03 05:35:32,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:35:32,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:35:32,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:35:32,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:35:32,636 INFO L87 Difference]: Start difference. First operand 26424 states and 34144 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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 05:35:38,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:35:38,482 INFO L93 Difference]: Finished difference Result 61317 states and 79301 transitions. [2021-11-03 05:35:38,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:35:38,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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 120 [2021-11-03 05:35:38,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:35:38,626 INFO L225 Difference]: With dead ends: 61317 [2021-11-03 05:35:38,626 INFO L226 Difference]: Without dead ends: 43761 [2021-11-03 05:35:38,677 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 236 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 05:35:38,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43761 states. [2021-11-03 05:35:40,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43761 to 43761. [2021-11-03 05:35:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43761 states, 43094 states have (on average 1.2868844850791294) internal successors, (55457), 43135 states have internal predecessors, (55457), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-03 05:35:40,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43761 states to 43761 states and 56607 transitions. [2021-11-03 05:35:40,564 INFO L78 Accepts]: Start accepts. Automaton has 43761 states and 56607 transitions. Word has length 120 [2021-11-03 05:35:40,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:35:40,567 INFO L470 AbstractCegarLoop]: Abstraction has 43761 states and 56607 transitions. [2021-11-03 05:35:40,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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 05:35:40,567 INFO L276 IsEmpty]: Start isEmpty. Operand 43761 states and 56607 transitions. [2021-11-03 05:35:40,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-03 05:35:40,580 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:35:40,580 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:35:40,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:35:40,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:35:40,796 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-03 05:35:40,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:35:40,796 INFO L85 PathProgramCache]: Analyzing trace with hash 764247360, now seen corresponding path program 1 times [2021-11-03 05:35:40,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:35:40,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978980048] [2021-11-03 05:35:40,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:35:40,799 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:35:40,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:35:40,801 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:35:40,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:35:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:35:43,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 1988 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:35:44,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:35:45,055 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:35:45,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:35:46,156 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:35:46,157 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:35:46,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978980048] [2021-11-03 05:35:46,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978980048] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:35:46,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:35:46,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:35:46,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109716799] [2021-11-03 05:35:46,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:35:46,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:35:46,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:35:46,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:35:46,160 INFO L87 Difference]: Start difference. First operand 43761 states and 56607 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 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 05:35:48,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:35:48,597 INFO L93 Difference]: Finished difference Result 43761 states and 56607 transitions. [2021-11-03 05:35:48,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:35:48,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 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 120 [2021-11-03 05:35:48,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:35:48,729 INFO L225 Difference]: With dead ends: 43761 [2021-11-03 05:35:48,729 INFO L226 Difference]: Without dead ends: 43755 [2021-11-03 05:35:48,747 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:35:48,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43755 states. [2021-11-03 05:35:50,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43755 to 43755. [2021-11-03 05:35:50,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43755 states, 43091 states have (on average 1.2868348379011858) internal successors, (55451), 43129 states have internal predecessors, (55451), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-03 05:35:50,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43755 states to 43755 states and 56601 transitions. [2021-11-03 05:35:50,942 INFO L78 Accepts]: Start accepts. Automaton has 43755 states and 56601 transitions. Word has length 120 [2021-11-03 05:35:50,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:35:50,943 INFO L470 AbstractCegarLoop]: Abstraction has 43755 states and 56601 transitions. [2021-11-03 05:35:50,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 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 05:35:50,944 INFO L276 IsEmpty]: Start isEmpty. Operand 43755 states and 56601 transitions. [2021-11-03 05:35:50,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-03 05:35:50,953 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:35:50,953 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:35:51,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:35:51,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:35:51,176 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-03 05:35:51,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:35:51,176 INFO L85 PathProgramCache]: Analyzing trace with hash 2485027, now seen corresponding path program 1 times [2021-11-03 05:35:51,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:35:51,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327177602] [2021-11-03 05:35:51,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:35:51,180 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:35:51,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:35:51,182 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:35:51,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:35:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:35:54,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 1991 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:35:54,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:35:55,661 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:35:55,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:35:56,710 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:35:56,710 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:35:56,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327177602] [2021-11-03 05:35:56,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327177602] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:35:56,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:35:56,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:35:56,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921398745] [2021-11-03 05:35:56,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:35:56,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:35:56,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:35:56,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:35:56,713 INFO L87 Difference]: Start difference. First operand 43755 states and 56601 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 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 05:35:58,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:35:58,384 INFO L93 Difference]: Finished difference Result 43755 states and 56601 transitions. [2021-11-03 05:35:58,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:35:58,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 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 122 [2021-11-03 05:35:58,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:35:58,503 INFO L225 Difference]: With dead ends: 43755 [2021-11-03 05:35:58,503 INFO L226 Difference]: Without dead ends: 43749 [2021-11-03 05:35:58,524 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:35:58,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43749 states. [2021-11-03 05:36:00,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43749 to 43749. [2021-11-03 05:36:00,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43749 states, 43088 states have (on average 1.2867851838098774) internal successors, (55445), 43123 states have internal predecessors, (55445), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-03 05:36:00,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43749 states to 43749 states and 56595 transitions. [2021-11-03 05:36:00,786 INFO L78 Accepts]: Start accepts. Automaton has 43749 states and 56595 transitions. Word has length 122 [2021-11-03 05:36:00,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:36:00,786 INFO L470 AbstractCegarLoop]: Abstraction has 43749 states and 56595 transitions. [2021-11-03 05:36:00,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 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 05:36:00,788 INFO L276 IsEmpty]: Start isEmpty. Operand 43749 states and 56595 transitions. [2021-11-03 05:36:00,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-03 05:36:00,802 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:36:00,802 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:36:00,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:36:01,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:36:01,024 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-03 05:36:01,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:36:01,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1906676346, now seen corresponding path program 1 times [2021-11-03 05:36:01,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:36:01,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363578173] [2021-11-03 05:36:01,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:36:01,027 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:36:01,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:36:01,029 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:36:01,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:36:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:36:04,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 1994 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:36:04,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:36:05,049 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:36:05,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:36:06,082 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:36:06,082 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:36:06,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363578173] [2021-11-03 05:36:06,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363578173] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:36:06,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:36:06,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:36:06,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659971610] [2021-11-03 05:36:06,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:36:06,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:36:06,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:36:06,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:36:06,085 INFO L87 Difference]: Start difference. First operand 43749 states and 56595 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 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 05:36:08,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:36:08,569 INFO L93 Difference]: Finished difference Result 43749 states and 56595 transitions. [2021-11-03 05:36:08,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:36:08,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 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 124 [2021-11-03 05:36:08,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:36:08,681 INFO L225 Difference]: With dead ends: 43749 [2021-11-03 05:36:08,681 INFO L226 Difference]: Without dead ends: 43743 [2021-11-03 05:36:08,700 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:36:08,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43743 states. [2021-11-03 05:36:10,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43743 to 43743. [2021-11-03 05:36:10,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43743 states, 43085 states have (on average 1.28673552280376) internal successors, (55439), 43117 states have internal predecessors, (55439), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-03 05:36:10,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43743 states to 43743 states and 56589 transitions. [2021-11-03 05:36:10,815 INFO L78 Accepts]: Start accepts. Automaton has 43743 states and 56589 transitions. Word has length 124 [2021-11-03 05:36:10,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:36:10,815 INFO L470 AbstractCegarLoop]: Abstraction has 43743 states and 56589 transitions. [2021-11-03 05:36:10,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 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 05:36:10,815 INFO L276 IsEmpty]: Start isEmpty. Operand 43743 states and 56589 transitions. [2021-11-03 05:36:10,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-03 05:36:10,822 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:36:10,822 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:36:10,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:36:11,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:36:11,029 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-03 05:36:11,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:36:11,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1635247209, now seen corresponding path program 1 times [2021-11-03 05:36:11,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:36:11,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356211151] [2021-11-03 05:36:11,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:36:11,040 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:36:11,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:36:11,043 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:36:11,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:36:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:36:14,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 1997 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:36:14,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:36:15,127 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:36:15,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:36:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:36:16,230 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:36:16,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356211151] [2021-11-03 05:36:16,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356211151] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:36:16,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:36:16,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:36:16,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732031679] [2021-11-03 05:36:16,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:36:16,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:36:16,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:36:16,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:36:16,233 INFO L87 Difference]: Start difference. First operand 43743 states and 56589 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 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 05:36:18,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:36:18,631 INFO L93 Difference]: Finished difference Result 43743 states and 56589 transitions. [2021-11-03 05:36:18,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:36:18,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 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 126 [2021-11-03 05:36:18,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:36:18,730 INFO L225 Difference]: With dead ends: 43743 [2021-11-03 05:36:18,730 INFO L226 Difference]: Without dead ends: 43737 [2021-11-03 05:36:18,745 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:36:18,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43737 states. [2021-11-03 05:36:20,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43737 to 43737. [2021-11-03 05:36:20,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43737 states, 43082 states have (on average 1.2866858548813889) internal successors, (55433), 43111 states have internal predecessors, (55433), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-03 05:36:20,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43737 states to 43737 states and 56583 transitions. [2021-11-03 05:36:20,877 INFO L78 Accepts]: Start accepts. Automaton has 43737 states and 56583 transitions. Word has length 126 [2021-11-03 05:36:20,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:36:20,878 INFO L470 AbstractCegarLoop]: Abstraction has 43737 states and 56583 transitions. [2021-11-03 05:36:20,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 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 05:36:20,878 INFO L276 IsEmpty]: Start isEmpty. Operand 43737 states and 56583 transitions. [2021-11-03 05:36:20,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-03 05:36:20,889 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:36:20,889 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:36:20,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-03 05:36:21,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:36:21,107 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-03 05:36:21,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:36:21,109 INFO L85 PathProgramCache]: Analyzing trace with hash -485281844, now seen corresponding path program 1 times [2021-11-03 05:36:21,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:36:21,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227259247] [2021-11-03 05:36:21,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:36:21,118 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:36:21,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:36:21,121 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:36:21,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:36:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:36:24,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 2000 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:36:24,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:36:25,399 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:36:25,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:36:26,451 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:36:26,451 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:36:26,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227259247] [2021-11-03 05:36:26,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1227259247] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:36:26,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:36:26,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:36:26,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812550078] [2021-11-03 05:36:26,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:36:26,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:36:26,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:36:26,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:36:26,454 INFO L87 Difference]: Start difference. First operand 43737 states and 56583 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 05:36:28,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:36:28,645 INFO L93 Difference]: Finished difference Result 43737 states and 56583 transitions. [2021-11-03 05:36:28,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:36:28,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 128 [2021-11-03 05:36:28,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:36:28,738 INFO L225 Difference]: With dead ends: 43737 [2021-11-03 05:36:28,738 INFO L226 Difference]: Without dead ends: 43731 [2021-11-03 05:36:28,752 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:36:28,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43731 states. [2021-11-03 05:36:30,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43731 to 43731. [2021-11-03 05:36:30,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43731 states, 43079 states have (on average 1.2866361800413195) internal successors, (55427), 43105 states have internal predecessors, (55427), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-03 05:36:30,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43731 states to 43731 states and 56577 transitions. [2021-11-03 05:36:30,808 INFO L78 Accepts]: Start accepts. Automaton has 43731 states and 56577 transitions. Word has length 128 [2021-11-03 05:36:30,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:36:30,809 INFO L470 AbstractCegarLoop]: Abstraction has 43731 states and 56577 transitions. [2021-11-03 05:36:30,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 05:36:30,809 INFO L276 IsEmpty]: Start isEmpty. Operand 43731 states and 56577 transitions. [2021-11-03 05:36:30,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-03 05:36:30,819 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:36:30,819 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:36:30,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:36:31,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:36:31,044 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-03 05:36:31,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:36:31,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1795764143, now seen corresponding path program 1 times [2021-11-03 05:36:31,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:36:31,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933843533] [2021-11-03 05:36:31,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:36:31,050 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:36:31,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:36:31,052 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:36:31,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:36:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:36:34,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 2003 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:36:34,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:36:35,395 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:36:35,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:36:36,459 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:36:36,459 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:36:36,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933843533] [2021-11-03 05:36:36,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933843533] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:36:36,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:36:36,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:36:36,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858779768] [2021-11-03 05:36:36,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:36:36,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:36:36,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:36:36,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:36:36,462 INFO L87 Difference]: Start difference. First operand 43731 states and 56577 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 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 05:36:38,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:36:38,864 INFO L93 Difference]: Finished difference Result 43731 states and 56577 transitions. [2021-11-03 05:36:38,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:36:38,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 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 130 [2021-11-03 05:36:38,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:36:38,936 INFO L225 Difference]: With dead ends: 43731 [2021-11-03 05:36:38,936 INFO L226 Difference]: Without dead ends: 43725 [2021-11-03 05:36:38,949 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:36:38,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43725 states. [2021-11-03 05:36:41,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43725 to 43725. [2021-11-03 05:36:41,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43725 states, 43076 states have (on average 1.286586498282106) internal successors, (55421), 43099 states have internal predecessors, (55421), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-03 05:36:41,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43725 states to 43725 states and 56571 transitions. [2021-11-03 05:36:41,225 INFO L78 Accepts]: Start accepts. Automaton has 43725 states and 56571 transitions. Word has length 130 [2021-11-03 05:36:41,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:36:41,226 INFO L470 AbstractCegarLoop]: Abstraction has 43725 states and 56571 transitions. [2021-11-03 05:36:41,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 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 05:36:41,226 INFO L276 IsEmpty]: Start isEmpty. Operand 43725 states and 56571 transitions. [2021-11-03 05:36:41,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-03 05:36:41,235 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:36:41,235 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:36:41,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-03 05:36:41,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:36:41,457 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-03 05:36:41,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:36:41,459 INFO L85 PathProgramCache]: Analyzing trace with hash -847330286, now seen corresponding path program 1 times [2021-11-03 05:36:41,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:36:41,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059407720] [2021-11-03 05:36:41,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:36:41,467 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:36:41,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:36:41,470 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:36:41,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 05:36:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:36:44,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 2006 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:36:44,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:36:45,666 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:36:45,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:36:46,742 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:36:46,742 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:36:46,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059407720] [2021-11-03 05:36:46,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059407720] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:36:46,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:36:46,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:36:46,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797331702] [2021-11-03 05:36:46,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:36:46,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:36:46,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:36:46,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:36:46,744 INFO L87 Difference]: Start difference. First operand 43725 states and 56571 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 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 05:36:49,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:36:49,689 INFO L93 Difference]: Finished difference Result 43725 states and 56571 transitions. [2021-11-03 05:36:49,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:36:49,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 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 132 [2021-11-03 05:36:49,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:36:49,745 INFO L225 Difference]: With dead ends: 43725 [2021-11-03 05:36:49,745 INFO L226 Difference]: Without dead ends: 43719 [2021-11-03 05:36:49,753 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:36:49,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43719 states. [2021-11-03 05:36:51,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43719 to 43719. [2021-11-03 05:36:51,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43719 states, 43073 states have (on average 1.286536809602303) internal successors, (55415), 43093 states have internal predecessors, (55415), 575 states have call successors, (575), 50 states have call predecessors, (575), 50 states have return successors, (575), 575 states have call predecessors, (575), 575 states have call successors, (575) [2021-11-03 05:36:51,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43719 states to 43719 states and 56565 transitions. [2021-11-03 05:36:51,912 INFO L78 Accepts]: Start accepts. Automaton has 43719 states and 56565 transitions. Word has length 132 [2021-11-03 05:36:51,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:36:51,912 INFO L470 AbstractCegarLoop]: Abstraction has 43719 states and 56565 transitions. [2021-11-03 05:36:51,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 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 05:36:51,913 INFO L276 IsEmpty]: Start isEmpty. Operand 43719 states and 56565 transitions. [2021-11-03 05:36:51,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-03 05:36:51,920 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:36:51,921 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:36:51,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:36:52,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:36:52,145 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-03 05:36:52,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:36:52,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1759562997, now seen corresponding path program 1 times [2021-11-03 05:36:52,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:36:52,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391510683] [2021-11-03 05:36:52,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:36:52,154 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:36:52,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:36:52,156 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:36:52,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23d1a629-ba94-4dec-98d5-548deee99740/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 05:36:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:36:55,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 2009 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:36:55,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:36:56,440 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:36:56,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:36:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:36:57,518 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:36:57,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391510683] [2021-11-03 05:36:57,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1391510683] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:36:57,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:36:57,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:36:57,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243362247] [2021-11-03 05:36:57,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:36:57,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:36:57,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:36:57,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:36:57,520 INFO L87 Difference]: Start difference. First operand 43719 states and 56565 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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)