./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-dec-tulip-uli526x.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_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/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_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/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_fbf81813-36d7-4b14-b3b5-01c9533b838f/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 b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:10:57,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:10:57,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:10:57,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:10:57,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:10:57,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:10:57,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:10:57,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:10:57,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:10:57,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:10:57,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:10:57,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:10:57,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:10:57,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:10:57,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:10:57,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:10:57,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:10:57,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:10:57,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:10:57,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:10:57,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:10:57,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:10:57,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:10:57,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:10:57,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:10:57,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:10:57,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:10:57,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:10:57,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:10:57,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:10:57,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:10:57,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:10:57,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:10:57,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:10:57,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:10:57,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:10:57,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:10:57,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:10:57,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:10:57,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:10:57,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:10:57,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:10:57,964 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:10:57,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:10:57,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:10:57,966 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:10:57,966 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:10:57,966 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:10:57,967 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:10:57,967 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:10:57,967 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:10:57,967 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:10:57,974 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:10:57,974 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:10:57,974 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:10:57,974 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:10:57,975 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:10:57,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:10:57,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:10:57,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:10:57,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:10:57,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:10:57,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:10:57,977 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:10:57,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:10:57,977 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:10:57,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:10:57,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:10:57,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:10:57,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:10:57,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:10:57,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:10:57,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:10:57,981 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:10:57,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:10:57,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:10:57,981 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:10:57,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:10:57,982 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2021-11-03 05:10:58,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:10:58,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:10:58,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:10:58,280 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:10:58,280 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:10:58,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-03 05:10:58,367 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/data/9e255ccb0/cead8c81e54f4685b5a1519a833897f9/FLAG37aa1bbed [2021-11-03 05:10:59,285 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:10:59,285 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-03 05:10:59,345 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/data/9e255ccb0/cead8c81e54f4685b5a1519a833897f9/FLAG37aa1bbed [2021-11-03 05:10:59,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/data/9e255ccb0/cead8c81e54f4685b5a1519a833897f9 [2021-11-03 05:10:59,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:10:59,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:10:59,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:10:59,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:10:59,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:10:59,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:10:59" (1/1) ... [2021-11-03 05:10:59,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73db3c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:10:59, skipping insertion in model container [2021-11-03 05:10:59,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:10:59" (1/1) ... [2021-11-03 05:10:59,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:10:59,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:11:01,575 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:11:01,576 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 05:11:02,437 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-11-03 05:11:02,440 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-11-03 05:11:02,445 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-11-03 05:11:02,446 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-11-03 05:11:02,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:11:02,505 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 05:11:02,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2364e596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:02, skipping insertion in model container [2021-11-03 05:11:02,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:11:02,507 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:11:02,509 INFO L168 Benchmark]: Toolchain (without parser) took 2769.00 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 58.9 MB in the beginning and 65.9 MB in the end (delta: -7.1 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:11:02,510 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 94.4 MB. Free memory is still 68.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:11:02,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2765.57 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 58.6 MB in the beginning and 65.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:11:02,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 94.4 MB. Free memory is still 68.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2765.57 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 58.6 MB in the beginning and 65.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 44.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6092]: 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/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_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/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_fbf81813-36d7-4b14-b3b5-01c9533b838f/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 b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:11:04,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:11:04,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:11:04,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:11:04,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:11:04,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:11:04,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:11:04,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:11:04,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:11:04,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:11:04,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:11:04,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:11:04,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:11:04,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:11:04,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:11:04,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:11:04,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:11:04,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:11:04,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:11:04,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:11:04,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:11:04,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:11:04,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:11:04,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:11:04,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:11:04,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:11:04,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:11:04,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:11:04,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:11:04,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:11:04,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:11:04,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:11:04,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:11:04,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:11:04,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:11:04,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:11:04,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:11:04,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:11:04,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:11:04,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:11:04,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:11:04,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:11:04,810 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:11:04,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:11:04,811 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:11:04,811 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:11:04,811 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:11:04,811 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:11:04,811 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:11:04,812 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:11:04,812 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:11:04,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:11:04,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:11:04,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:11:04,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:11:04,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:11:04,814 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:11:04,814 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:11:04,814 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:11:04,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:11:04,815 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:11:04,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:11:04,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:11:04,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:11:04,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:11:04,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:11:04,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:11:04,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:11:04,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:11:04,817 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:11:04,817 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:11:04,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:11:04,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:11:04,817 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:11:04,818 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2021-11-03 05:11:05,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:11:05,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:11:05,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:11:05,199 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:11:05,200 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:11:05,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-03 05:11:05,275 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/data/3b1105d3a/034e2fd18cab4dcd88fb36333082f488/FLAGcc9ea0227 [2021-11-03 05:11:06,182 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:11:06,182 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-03 05:11:06,245 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/data/3b1105d3a/034e2fd18cab4dcd88fb36333082f488/FLAGcc9ea0227 [2021-11-03 05:11:06,641 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/data/3b1105d3a/034e2fd18cab4dcd88fb36333082f488 [2021-11-03 05:11:06,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:11:06,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:11:06,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:11:06,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:11:06,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:11:06,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:11:06" (1/1) ... [2021-11-03 05:11:06,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5386a1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:06, skipping insertion in model container [2021-11-03 05:11:06,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:11:06" (1/1) ... [2021-11-03 05:11:06,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:11:06,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:11:09,331 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-11-03 05:11:09,334 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-11-03 05:11:09,335 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-11-03 05:11:09,335 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-11-03 05:11:09,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:11:09,390 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:11:09,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:11:09,847 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-11-03 05:11:09,847 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-11-03 05:11:09,848 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-11-03 05:11:09,848 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-11-03 05:11:09,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:11:09,898 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:11:10,311 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2021-11-03 05:11:10,311 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2021-11-03 05:11:10,312 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2021-11-03 05:11:10,312 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_fbf81813-36d7-4b14-b3b5-01c9533b838f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2021-11-03 05:11:10,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:11:10,608 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:11:10,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:10 WrapperNode [2021-11-03 05:11:10,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:11:10,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:11:10,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:11:10,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:11:10,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:10" (1/1) ... [2021-11-03 05:11:10,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:10" (1/1) ... [2021-11-03 05:11:12,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:11:12,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:11:12,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:11:12,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:11:12,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:10" (1/1) ... [2021-11-03 05:11:12,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:10" (1/1) ... [2021-11-03 05:11:12,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:10" (1/1) ... [2021-11-03 05:11:12,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:10" (1/1) ... [2021-11-03 05:11:12,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:10" (1/1) ... [2021-11-03 05:11:13,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:10" (1/1) ... [2021-11-03 05:11:13,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:10" (1/1) ... [2021-11-03 05:11:13,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:11:13,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:11:13,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:11:13,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:11:13,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:10" (1/1) ... [2021-11-03 05:11:13,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:11:13,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:11:13,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:11:13,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:11:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:11:13,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:11:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:11:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:11:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:11:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:11:13,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 05:11:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 05:11:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 05:11:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 05:11:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:11:13,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:11:13,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:11:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:11:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:11:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 05:11:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 05:11:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:11:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:11:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:11:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:11:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:11:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:11:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:11:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:11:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:11:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 05:11:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:11:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:14:19,111 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 05:14:19,112 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-03 05:14:19,112 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 05:14:19,113 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 05:14:19,115 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 05:14:19,116 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 05:14:19,178 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:14:19,178 INFO L299 CfgBuilder]: Removed 10552 assume(true) statements. [2021-11-03 05:14:19,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:14:19 BoogieIcfgContainer [2021-11-03 05:14:19,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:14:19,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:14:19,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:14:19,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:14:19,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:11:06" (1/3) ... [2021-11-03 05:14:19,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4374d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:14:19, skipping insertion in model container [2021-11-03 05:14:19,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:11:10" (2/3) ... [2021-11-03 05:14:19,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4374d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:14:19, skipping insertion in model container [2021-11-03 05:14:19,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:14:19" (3/3) ... [2021-11-03 05:14:19,194 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-03 05:14:19,199 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:14:19,199 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 65 error locations. [2021-11-03 05:14:19,268 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:14:19,274 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 05:14:19,274 INFO L340 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2021-11-03 05:14:19,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 6856 states, 6791 states have (on average 1.2098365483728464) internal successors, (8216), 6855 states have internal predecessors, (8216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:14:19,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-03 05:14:19,382 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:19,383 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] [2021-11-03 05:14:19,384 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 62 more)] === [2021-11-03 05:14:19,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:19,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1312456937, now seen corresponding path program 1 times [2021-11-03 05:14:19,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:14:19,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439335418] [2021-11-03 05:14:19,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:19,405 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:14:19,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:14:19,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:14:19,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:14:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:20,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:14:20,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:14:21,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:14:21,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:14:21,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:14:21,319 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:14:21,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439335418] [2021-11-03 05:14:21,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439335418] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:21,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:21,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:14:21,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491650531] [2021-11-03 05:14:21,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:14:21,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:14:21,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:14:21,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:14:21,356 INFO L87 Difference]: Start difference. First operand has 6856 states, 6791 states have (on average 1.2098365483728464) internal successors, (8216), 6855 states have internal predecessors, (8216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:14:24,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:24,986 INFO L93 Difference]: Finished difference Result 26347 states and 31461 transitions. [2021-11-03 05:14:24,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:14:24,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 43 [2021-11-03 05:14:24,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:25,131 INFO L225 Difference]: With dead ends: 26347 [2021-11-03 05:14:25,132 INFO L226 Difference]: Without dead ends: 19179 [2021-11-03 05:14:25,161 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 82 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 05:14:25,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19179 states. [2021-11-03 05:14:26,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19179 to 18127. [2021-11-03 05:14:26,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18127 states, 18062 states have (on average 1.1751190344369393) internal successors, (21225), 18126 states have internal predecessors, (21225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:14:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18127 states to 18127 states and 21225 transitions. [2021-11-03 05:14:26,196 INFO L78 Accepts]: Start accepts. Automaton has 18127 states and 21225 transitions. Word has length 43 [2021-11-03 05:14:26,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:14:26,199 INFO L470 AbstractCegarLoop]: Abstraction has 18127 states and 21225 transitions. [2021-11-03 05:14:26,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:14:26,201 INFO L276 IsEmpty]: Start isEmpty. Operand 18127 states and 21225 transitions. [2021-11-03 05:14:26,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 05:14:26,209 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:26,209 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] [2021-11-03 05:14:26,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 05:14:26,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:14:26,426 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 62 more)] === [2021-11-03 05:14:26,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:26,432 INFO L85 PathProgramCache]: Analyzing trace with hash 452358301, now seen corresponding path program 1 times [2021-11-03 05:14:26,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:14:26,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964551671] [2021-11-03 05:14:26,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:26,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:14:26,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:14:26,467 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:14:26,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:14:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:27,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:14:27,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:14:28,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:14:28,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:14:28,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:14:28,324 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:14:28,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964551671] [2021-11-03 05:14:28,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964551671] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:28,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:28,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:14:28,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167345636] [2021-11-03 05:14:28,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:14:28,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:14:28,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:14:28,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:14:28,328 INFO L87 Difference]: Start difference. First operand 18127 states and 21225 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:14:32,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:32,372 INFO L93 Difference]: Finished difference Result 63905 states and 75027 transitions. [2021-11-03 05:14:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:14:32,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 45 [2021-11-03 05:14:32,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:32,534 INFO L225 Difference]: With dead ends: 63905 [2021-11-03 05:14:32,535 INFO L226 Difference]: Without dead ends: 45854 [2021-11-03 05:14:32,568 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 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 05:14:32,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45854 states. [2021-11-03 05:14:34,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45854 to 45288. [2021-11-03 05:14:34,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45288 states, 45223 states have (on average 1.1794883134688101) internal successors, (53340), 45287 states have internal predecessors, (53340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:14:34,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45288 states to 45288 states and 53340 transitions. [2021-11-03 05:14:34,434 INFO L78 Accepts]: Start accepts. Automaton has 45288 states and 53340 transitions. Word has length 45 [2021-11-03 05:14:34,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:14:34,436 INFO L470 AbstractCegarLoop]: Abstraction has 45288 states and 53340 transitions. [2021-11-03 05:14:34,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:14:34,436 INFO L276 IsEmpty]: Start isEmpty. Operand 45288 states and 53340 transitions. [2021-11-03 05:14:34,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-03 05:14:34,440 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:34,440 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:14:34,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:14:34,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:14:34,661 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 62 more)] === [2021-11-03 05:14:34,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:34,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1773104503, now seen corresponding path program 1 times [2021-11-03 05:14:34,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:14:34,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810976471] [2021-11-03 05:14:34,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:34,677 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:14:34,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:14:34,681 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:14:34,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:14:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:36,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:14:36,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:14:36,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:14:36,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:14:36,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:14:36,359 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:14:36,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810976471] [2021-11-03 05:14:36,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810976471] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:36,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:36,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:14:36,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855588105] [2021-11-03 05:14:36,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:14:36,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:14:36,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:14:36,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:14:36,362 INFO L87 Difference]: Start difference. First operand 45288 states and 53340 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:14:42,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:42,111 INFO L93 Difference]: Finished difference Result 179739 states and 211733 transitions. [2021-11-03 05:14:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:14:42,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 46 [2021-11-03 05:14:42,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:42,386 INFO L225 Difference]: With dead ends: 179739 [2021-11-03 05:14:42,387 INFO L226 Difference]: Without dead ends: 134527 [2021-11-03 05:14:42,559 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 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 05:14:42,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134527 states. [2021-11-03 05:14:47,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134527 to 134423. [2021-11-03 05:14:47,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134423 states, 134358 states have (on average 1.17859747837866) internal successors, (158354), 134422 states have internal predecessors, (158354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:14:48,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134423 states to 134423 states and 158354 transitions. [2021-11-03 05:14:48,228 INFO L78 Accepts]: Start accepts. Automaton has 134423 states and 158354 transitions. Word has length 46 [2021-11-03 05:14:48,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:14:48,228 INFO L470 AbstractCegarLoop]: Abstraction has 134423 states and 158354 transitions. [2021-11-03 05:14:48,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:14:48,228 INFO L276 IsEmpty]: Start isEmpty. Operand 134423 states and 158354 transitions. [2021-11-03 05:14:48,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-03 05:14:48,230 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:14:48,230 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] [2021-11-03 05:14:48,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:14:48,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:14:48,447 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 62 more)] === [2021-11-03 05:14:48,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:14:48,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1413293794, now seen corresponding path program 1 times [2021-11-03 05:14:48,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:14:48,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [598210253] [2021-11-03 05:14:48,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:14:48,471 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:14:48,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:14:48,474 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:14:48,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:14:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:14:49,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:14:49,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:14:50,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:14:50,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:14:50,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:14:50,219 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:14:50,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [598210253] [2021-11-03 05:14:50,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [598210253] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:14:50,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:14:50,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:14:50,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450023196] [2021-11-03 05:14:50,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:14:50,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:14:50,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:14:50,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:14:50,222 INFO L87 Difference]: Start difference. First operand 134423 states and 158354 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:14:57,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:14:57,683 INFO L93 Difference]: Finished difference Result 263810 states and 313664 transitions. [2021-11-03 05:14:57,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:14:57,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 49 [2021-11-03 05:14:57,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:14:57,912 INFO L225 Difference]: With dead ends: 263810 [2021-11-03 05:14:57,912 INFO L226 Difference]: Without dead ends: 129463 [2021-11-03 05:14:58,297 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 94 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 05:14:58,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129463 states. [2021-11-03 05:15:02,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129463 to 129179. [2021-11-03 05:15:03,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129179 states, 129114 states have (on average 1.198870765370138) internal successors, (154791), 129178 states have internal predecessors, (154791), 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 05:15:03,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129179 states to 129179 states and 154791 transitions. [2021-11-03 05:15:03,426 INFO L78 Accepts]: Start accepts. Automaton has 129179 states and 154791 transitions. Word has length 49 [2021-11-03 05:15:03,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:15:03,426 INFO L470 AbstractCegarLoop]: Abstraction has 129179 states and 154791 transitions. [2021-11-03 05:15:03,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 05:15:03,427 INFO L276 IsEmpty]: Start isEmpty. Operand 129179 states and 154791 transitions. [2021-11-03 05:15:03,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-03 05:15:03,428 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:15:03,428 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] [2021-11-03 05:15:03,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:15:03,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:15:03,632 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 62 more)] === [2021-11-03 05:15:03,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:15:03,634 INFO L85 PathProgramCache]: Analyzing trace with hash 354775553, now seen corresponding path program 1 times [2021-11-03 05:15:03,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:15:03,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634081232] [2021-11-03 05:15:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:15:03,650 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:15:03,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:15:03,654 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:15:03,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf81813-36d7-4b14-b3b5-01c9533b838f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:15:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:15:05,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 1075 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:15:05,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:15:05,163 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 05:15:05,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:15:05,314 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 05:15:05,315 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:15:05,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634081232] [2021-11-03 05:15:05,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1634081232] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:15:05,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:15:05,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 05:15:05,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131318581] [2021-11-03 05:15:05,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:15:05,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:15:05,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:15:05,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:15:05,317 INFO L87 Difference]: Start difference. First operand 129179 states and 154791 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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)