./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8 --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 955ba2d33e196282c8a8d7d6878108af44ab130aa14cf65292e3d1ed9a6c4e47 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:02:07,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:02:07,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:02:07,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:02:07,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:02:07,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:02:07,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:02:07,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:02:07,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:02:07,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:02:07,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:02:07,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:02:07,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:02:07,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:02:07,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:02:07,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:02:07,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:02:07,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:02:07,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:02:07,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:02:07,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:02:07,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:02:07,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:02:07,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:02:07,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:02:07,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:02:07,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:02:07,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:02:07,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:02:07,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:02:07,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:02:07,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:02:07,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:02:07,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:02:07,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:02:07,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:02:07,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:02:07,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:02:07,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:02:07,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:02:07,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:02:07,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:02:07,931 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:02:07,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:02:07,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:02:07,933 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:02:07,933 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:02:07,933 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:02:07,933 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:02:07,934 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:02:07,934 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:02:07,934 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:02:07,935 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:02:07,935 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:02:07,935 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:02:07,936 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:02:07,936 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:02:07,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:02:07,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:02:07,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:02:07,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:02:07,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:02:07,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:02:07,939 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:02:07,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:02:07,939 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:02:07,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:02:07,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:02:07,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:02:07,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:02:07,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:02:07,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:02:07,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:02:07,941 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:02:07,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:02:07,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:02:07,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:02:07,943 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:02:07,943 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_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 955ba2d33e196282c8a8d7d6878108af44ab130aa14cf65292e3d1ed9a6c4e47 [2021-11-07 02:02:08,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:02:08,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:02:08,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:02:08,296 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:02:08,297 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:02:08,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i [2021-11-07 02:02:08,390 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/data/9d8c6dd29/90c56622fc534a8bbaad4688e53eafda/FLAGfa8d49ad5 [2021-11-07 02:02:09,644 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:02:09,645 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i [2021-11-07 02:02:09,720 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/data/9d8c6dd29/90c56622fc534a8bbaad4688e53eafda/FLAGfa8d49ad5 [2021-11-07 02:02:09,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/data/9d8c6dd29/90c56622fc534a8bbaad4688e53eafda [2021-11-07 02:02:09,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:02:09,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:02:09,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:09,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:02:09,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:02:09,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:09" (1/1) ... [2021-11-07 02:02:09,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ea431ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:09, skipping insertion in model container [2021-11-07 02:02:09,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:09" (1/1) ... [2021-11-07 02:02:09,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:02:09,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:02:12,709 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_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i[210062,210075] [2021-11-07 02:02:15,008 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:02:15,176 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:02:15,333 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:02:15,334 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:02:15,709 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:02:15,719 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:02:16,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:16,166 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) [2021-11-07 02:02:16,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5988e5df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:16, skipping insertion in model container [2021-11-07 02:02:16,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:16,168 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:02:16,170 INFO L168 Benchmark]: Toolchain (without parser) took 6409.25 ms. Allocated memory was 130.0 MB in the beginning and 199.2 MB in the end (delta: 69.2 MB). Free memory was 92.6 MB in the beginning and 90.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 76.9 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:16,171 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 130.0 MB. Free memory is still 104.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:02:16,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 6406.05 ms. Allocated memory was 130.0 MB in the beginning and 199.2 MB in the end (delta: 69.2 MB). Free memory was 92.1 MB in the beginning and 90.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 76.9 MB. Max. memory is 16.1 GB. [2021-11-07 02:02:16,174 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 130.0 MB. Free memory is still 104.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 6406.05 ms. Allocated memory was 130.0 MB in the beginning and 199.2 MB in the end (delta: 69.2 MB). Free memory was 92.1 MB in the beginning and 90.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 76.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7072]: 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_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8 --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 955ba2d33e196282c8a8d7d6878108af44ab130aa14cf65292e3d1ed9a6c4e47 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:02:18,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:02:18,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:02:18,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:02:18,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:02:18,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:02:19,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:02:19,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:02:19,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:02:19,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:02:19,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:02:19,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:02:19,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:02:19,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:02:19,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:02:19,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:02:19,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:02:19,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:02:19,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:02:19,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:02:19,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:02:19,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:02:19,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:02:19,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:02:19,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:02:19,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:02:19,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:02:19,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:02:19,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:02:19,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:02:19,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:02:19,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:02:19,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:02:19,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:02:19,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:02:19,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:02:19,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:02:19,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:02:19,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:02:19,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:02:19,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:02:19,096 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:02:19,145 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:02:19,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:02:19,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:02:19,147 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:02:19,147 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:02:19,147 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:02:19,147 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:02:19,148 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:02:19,148 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:02:19,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:02:19,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:02:19,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:02:19,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:02:19,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:02:19,150 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:02:19,151 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:02:19,151 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:02:19,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:02:19,151 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:02:19,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:02:19,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:02:19,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:02:19,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:02:19,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:02:19,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:02:19,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:02:19,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:02:19,154 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:02:19,154 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:02:19,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:02:19,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:02:19,155 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:02:19,156 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_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 955ba2d33e196282c8a8d7d6878108af44ab130aa14cf65292e3d1ed9a6c4e47 [2021-11-07 02:02:19,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:02:19,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:02:19,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:02:19,724 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:02:19,725 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:02:19,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i [2021-11-07 02:02:19,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/data/1f24d0845/e55c7f0d1ccc4e939307aa0aa4454759/FLAGa65d964e2 [2021-11-07 02:02:21,196 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:02:21,198 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i [2021-11-07 02:02:21,307 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/data/1f24d0845/e55c7f0d1ccc4e939307aa0aa4454759/FLAGa65d964e2 [2021-11-07 02:02:21,331 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/data/1f24d0845/e55c7f0d1ccc4e939307aa0aa4454759 [2021-11-07 02:02:21,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:02:21,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:02:21,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:21,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:02:21,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:02:21,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:21" (1/1) ... [2021-11-07 02:02:21,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723fd96b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:21, skipping insertion in model container [2021-11-07 02:02:21,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:02:21" (1/1) ... [2021-11-07 02:02:21,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:02:21,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:02:24,520 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_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i[210062,210075] [2021-11-07 02:02:27,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:28,108 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:02:28,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:02:28,478 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_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i[210062,210075] [2021-11-07 02:02:28,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:29,085 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:02:29,316 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_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i[210062,210075] [2021-11-07 02:02:30,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:02:30,852 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:02:30,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:30 WrapperNode [2021-11-07 02:02:30,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:02:30,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:02:30,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:02:30,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:02:30,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:30" (1/1) ... [2021-11-07 02:02:31,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:30" (1/1) ... [2021-11-07 02:02:36,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:02:36,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:02:36,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:02:36,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:02:36,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:30" (1/1) ... [2021-11-07 02:02:36,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:30" (1/1) ... [2021-11-07 02:02:38,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:30" (1/1) ... [2021-11-07 02:02:38,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:30" (1/1) ... [2021-11-07 02:02:40,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:30" (1/1) ... [2021-11-07 02:02:41,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:30" (1/1) ... [2021-11-07 02:02:41,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:30" (1/1) ... [2021-11-07 02:02:42,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:02:42,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:02:42,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:02:42,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:02:42,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:30" (1/1) ... [2021-11-07 02:02:42,150 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:02:42,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:02:42,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:02:42,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:02:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-07 02:02:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:02:42,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 02:02:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:02:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:02:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:02:42,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:02:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:02:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 02:02:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 02:02:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 02:02:42,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 02:02:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 02:02:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:02:42,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:02:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:02:42,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:02:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:02:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 02:02:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 02:02:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 02:02:42,261 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-07 02:02:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:02:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:02:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:02:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:02:42,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 02:02:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:02:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:02:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 02:02:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 02:02:42,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 02:02:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 02:02:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-07 02:11:11,369 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:11:11,370 INFO L299 CfgBuilder]: Removed 27112 assume(true) statements. [2021-11-07 02:11:11,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:11:11 BoogieIcfgContainer [2021-11-07 02:11:11,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:11:11,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:11:11,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:11:11,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:11:11,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:02:21" (1/3) ... [2021-11-07 02:11:11,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d548a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:11:11, skipping insertion in model container [2021-11-07 02:11:11,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:02:30" (2/3) ... [2021-11-07 02:11:11,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d548a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:11:11, skipping insertion in model container [2021-11-07 02:11:11,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:11:11" (3/3) ... [2021-11-07 02:11:11,408 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--marvell--sky2.ko-entry_point.cil.out.i [2021-11-07 02:11:11,420 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:11:11,420 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:11:11,615 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:11:11,628 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 [2021-11-07 02:11:11,629 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 02:11:11,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 19176 states, 19174 states have (on average 1.2581620945029728) internal successors, (24124), 19175 states have internal predecessors, (24124), 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) [2021-11-07 02:11:11,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 02:11:11,943 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:11:11,944 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] [2021-11-07 02:11:11,944 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:11:11,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:11:11,950 INFO L85 PathProgramCache]: Analyzing trace with hash 328594732, now seen corresponding path program 1 times [2021-11-07 02:11:11,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:11:11,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716436469] [2021-11-07 02:11:11,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:11,982 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:11:11,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:11:11,989 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:11:12,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:11:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:11:28,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 4378 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:11:28,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:11:29,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:11:29,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:11:30,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:11:30,153 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:11:30,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716436469] [2021-11-07 02:11:30,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [716436469] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:11:30,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:11:30,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:11:30,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144001097] [2021-11-07 02:11:30,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:11:30,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:11:30,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:11:30,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:11:30,223 INFO L87 Difference]: Start difference. First operand has 19176 states, 19174 states have (on average 1.2581620945029728) internal successors, (24124), 19175 states have internal predecessors, (24124), 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 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2021-11-07 02:11:34,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:11:34,866 INFO L93 Difference]: Finished difference Result 38359 states and 48269 transitions. [2021-11-07 02:11:34,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:11:34,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 51 [2021-11-07 02:11:34,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:11:35,027 INFO L225 Difference]: With dead ends: 38359 [2021-11-07 02:11:35,027 INFO L226 Difference]: Without dead ends: 19111 [2021-11-07 02:11:35,078 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:11:35,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19111 states. [2021-11-07 02:11:35,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19111 to 19111. [2021-11-07 02:11:35,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19111 states, 19110 states have (on average 1.2502878074306645) internal successors, (23893), 19110 states have internal predecessors, (23893), 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) [2021-11-07 02:11:36,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19111 states to 19111 states and 23893 transitions. [2021-11-07 02:11:36,089 INFO L78 Accepts]: Start accepts. Automaton has 19111 states and 23893 transitions. Word has length 51 [2021-11-07 02:11:36,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:11:36,091 INFO L470 AbstractCegarLoop]: Abstraction has 19111 states and 23893 transitions. [2021-11-07 02:11:36,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2021-11-07 02:11:36,092 INFO L276 IsEmpty]: Start isEmpty. Operand 19111 states and 23893 transitions. [2021-11-07 02:11:36,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 02:11:36,097 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:11:36,098 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 02:11:36,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:11:36,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:11:36,312 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:11:36,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:11:36,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1790996, now seen corresponding path program 1 times [2021-11-07 02:11:36,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:11:36,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [23483964] [2021-11-07 02:11:36,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:36,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:11:36,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:11:36,332 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:11:36,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:11:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:11:52,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 4388 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:11:52,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:11:53,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:11:53,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:11:55,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:11:55,585 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:11:55,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [23483964] [2021-11-07 02:11:55,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [23483964] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:11:55,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [18076978] [2021-11-07 02:11:55,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:55,586 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:11:55,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:11:55,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:11:55,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-11-07 02:11:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:11:59,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 4388 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:11:59,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:00,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:12:00,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:12:01,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [18076978] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:12:01,627 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:12:01,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 10 [2021-11-07 02:12:01,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532521768] [2021-11-07 02:12:01,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:12:01,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:01,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:12:01,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:12:01,643 INFO L87 Difference]: Start difference. First operand 19111 states and 23893 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2021-11-07 02:12:07,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:07,873 INFO L93 Difference]: Finished difference Result 75807 states and 94861 transitions. [2021-11-07 02:12:07,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:12:07,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 53 [2021-11-07 02:12:07,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:08,152 INFO L225 Difference]: With dead ends: 75807 [2021-11-07 02:12:08,152 INFO L226 Difference]: Without dead ends: 56821 [2021-11-07 02:12:08,261 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:12:08,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56821 states. [2021-11-07 02:12:10,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56821 to 56821. [2021-11-07 02:12:10,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56821 states, 56820 states have (on average 1.2513727560718058) internal successors, (71103), 56820 states have internal predecessors, (71103), 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) [2021-11-07 02:12:10,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56821 states to 56821 states and 71103 transitions. [2021-11-07 02:12:10,669 INFO L78 Accepts]: Start accepts. Automaton has 56821 states and 71103 transitions. Word has length 53 [2021-11-07 02:12:10,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:10,670 INFO L470 AbstractCegarLoop]: Abstraction has 56821 states and 71103 transitions. [2021-11-07 02:12:10,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2021-11-07 02:12:10,670 INFO L276 IsEmpty]: Start isEmpty. Operand 56821 states and 71103 transitions. [2021-11-07 02:12:10,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-07 02:12:10,676 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:10,677 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 02:12:10,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:10,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:11,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:12:11,091 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:12:11,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:11,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1193708419, now seen corresponding path program 1 times [2021-11-07 02:12:11,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:11,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328933689] [2021-11-07 02:12:11,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:11,106 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:11,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:11,107 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:11,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:12:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:26,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 4417 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:12:26,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:27,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:27,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:29,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:12:29,226 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:12:29,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328933689] [2021-11-07 02:12:29,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328933689] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:12:29,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [237785771] [2021-11-07 02:12:29,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:29,227 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:12:29,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:12:29,246 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:12:29,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-07 02:12:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:12:32,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 4417 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:12:32,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:12:33,785 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:12:33,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:12:35,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 02:12:35,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [237785771] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:12:35,436 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:12:35,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5] total 13 [2021-11-07 02:12:35,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364809310] [2021-11-07 02:12:35,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:12:35,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:12:35,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:12:35,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-07 02:12:35,438 INFO L87 Difference]: Start difference. First operand 56821 states and 71103 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-11-07 02:12:40,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:12:40,832 INFO L93 Difference]: Finished difference Result 113517 states and 142067 transitions. [2021-11-07 02:12:40,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:12:40,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-07 02:12:40,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:12:41,188 INFO L225 Difference]: With dead ends: 113517 [2021-11-07 02:12:41,189 INFO L226 Difference]: Without dead ends: 113507 [2021-11-07 02:12:41,228 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-11-07 02:12:41,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113507 states. [2021-11-07 02:12:44,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113507 to 113459. [2021-11-07 02:12:44,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113459 states, 113458 states have (on average 1.2515203863984912) internal successors, (141995), 113458 states have internal predecessors, (141995), 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) [2021-11-07 02:12:45,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113459 states to 113459 states and 141995 transitions. [2021-11-07 02:12:45,214 INFO L78 Accepts]: Start accepts. Automaton has 113459 states and 141995 transitions. Word has length 59 [2021-11-07 02:12:45,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:12:45,214 INFO L470 AbstractCegarLoop]: Abstraction has 113459 states and 141995 transitions. [2021-11-07 02:12:45,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-11-07 02:12:45,214 INFO L276 IsEmpty]: Start isEmpty. Operand 113459 states and 141995 transitions. [2021-11-07 02:12:45,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-07 02:12:45,284 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:12:45,285 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:12:45,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:12:45,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-07 02:12:45,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:12:45,701 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:12:45,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:12:45,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1464591140, now seen corresponding path program 1 times [2021-11-07 02:12:45,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:12:45,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930069600] [2021-11-07 02:12:45,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:12:45,715 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:12:45,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:12:45,716 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:12:45,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:13:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:13:01,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 4891 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:13:01,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:13:04,339 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 02:13:04,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:13:08,145 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-07 02:13:08,145 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:13:08,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930069600] [2021-11-07 02:13:08,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930069600] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:13:08,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [345224190] [2021-11-07 02:13:08,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:13:08,146 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:13:08,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:13:08,159 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:13:08,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-07 02:13:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:13:11,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 4891 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:13:11,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:13:14,742 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:13:14,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:13:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:13:17,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [345224190] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:13:17,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:13:17,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-07 02:13:17,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143464525] [2021-11-07 02:13:17,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:13:17,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:13:17,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:13:17,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:13:17,562 INFO L87 Difference]: Start difference. First operand 113459 states and 141995 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2021-11-07 02:13:25,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:13:25,092 INFO L93 Difference]: Finished difference Result 301859 states and 377549 transitions. [2021-11-07 02:13:25,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:13:25,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 179 [2021-11-07 02:13:25,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:13:25,596 INFO L225 Difference]: With dead ends: 301859 [2021-11-07 02:13:25,596 INFO L226 Difference]: Without dead ends: 188525 [2021-11-07 02:13:25,878 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:13:26,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188525 states. [2021-11-07 02:13:31,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188525 to 175947. [2021-11-07 02:13:32,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175947 states, 175946 states have (on average 1.2503779568731315) internal successors, (219999), 175946 states have internal predecessors, (219999), 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) [2021-11-07 02:13:33,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175947 states to 175947 states and 219999 transitions. [2021-11-07 02:13:33,217 INFO L78 Accepts]: Start accepts. Automaton has 175947 states and 219999 transitions. Word has length 179 [2021-11-07 02:13:33,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:13:33,218 INFO L470 AbstractCegarLoop]: Abstraction has 175947 states and 219999 transitions. [2021-11-07 02:13:33,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2021-11-07 02:13:33,218 INFO L276 IsEmpty]: Start isEmpty. Operand 175947 states and 219999 transitions. [2021-11-07 02:13:33,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-07 02:13:33,322 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:13:33,323 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:13:33,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:13:33,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 02:13:33,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:13:33,726 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:13:33,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:13:33,727 INFO L85 PathProgramCache]: Analyzing trace with hash 213396761, now seen corresponding path program 1 times [2021-11-07 02:13:33,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:13:33,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394842293] [2021-11-07 02:13:33,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:13:33,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:13:33,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:13:33,763 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:13:33,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:13:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:13:51,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 5026 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:13:51,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:13:56,346 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 02:13:56,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:14:02,008 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-07 02:14:02,009 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:14:02,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394842293] [2021-11-07 02:14:02,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394842293] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:14:02,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1698581802] [2021-11-07 02:14:02,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:14:02,010 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:14:02,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:14:02,011 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:14:02,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-07 02:14:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:14:07,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 5026 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:14:07,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:14:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 02:14:10,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:14:12,737 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 02:14:12,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1698581802] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:14:12,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:14:12,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5, 5] total 10 [2021-11-07 02:14:12,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813066150] [2021-11-07 02:14:12,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:14:12,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:14:12,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:14:12,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:14:12,740 INFO L87 Difference]: Start difference. First operand 175947 states and 219999 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 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) [2021-11-07 02:14:19,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:14:19,350 INFO L93 Difference]: Finished difference Result 351793 states and 439901 transitions. [2021-11-07 02:14:19,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:14:19,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 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 220 [2021-11-07 02:14:19,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:14:20,230 INFO L225 Difference]: With dead ends: 351793 [2021-11-07 02:14:20,230 INFO L226 Difference]: Without dead ends: 175971 [2021-11-07 02:14:20,530 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 877 GetRequests, 868 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-07 02:14:20,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175971 states. [2021-11-07 02:14:26,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175971 to 175965. [2021-11-07 02:14:27,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175965 states, 175964 states have (on average 1.2503523447977996) internal successors, (220017), 175964 states have internal predecessors, (220017), 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) [2021-11-07 02:14:27,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175965 states to 175965 states and 220017 transitions. [2021-11-07 02:14:27,687 INFO L78 Accepts]: Start accepts. Automaton has 175965 states and 220017 transitions. Word has length 220 [2021-11-07 02:14:27,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:14:27,688 INFO L470 AbstractCegarLoop]: Abstraction has 175965 states and 220017 transitions. [2021-11-07 02:14:27,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 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) [2021-11-07 02:14:27,689 INFO L276 IsEmpty]: Start isEmpty. Operand 175965 states and 220017 transitions. [2021-11-07 02:14:28,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-07 02:14:28,284 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:14:28,285 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:14:28,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 02:14:28,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:14:28,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:14:28,686 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:14:28,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:14:28,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1701555811, now seen corresponding path program 1 times [2021-11-07 02:14:28,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:14:28,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460459219] [2021-11-07 02:14:28,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:14:28,695 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:14:28,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:14:28,696 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:14:28,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b80717f-2c1c-45a8-b1b7-1f7bc6d12738/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process