./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs --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 dcf5140fb8d3cca08efae44c7b81afb04deeac6d ......................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs --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 dcf5140fb8d3cca08efae44c7b81afb04deeac6d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:55:14,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:55:14,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:55:14,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:55:14,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:55:14,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:55:14,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:55:14,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:55:14,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:55:14,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:55:14,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:55:14,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:55:14,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:55:14,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:55:14,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:55:14,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:55:14,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:55:14,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:55:14,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:55:14,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:55:14,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:55:14,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:55:14,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:55:14,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:55:14,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:55:14,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:55:14,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:55:14,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:55:14,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:55:14,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:55:14,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:55:14,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:55:14,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:55:14,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:55:14,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:55:14,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:55:14,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:55:14,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:55:14,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:55:14,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:55:14,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:55:14,463 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-10-16 02:55:14,490 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:55:14,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:55:14,491 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:55:14,491 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:55:14,491 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:55:14,491 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:55:14,492 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:55:14,492 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:55:14,492 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:55:14,492 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:55:14,492 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:55:14,493 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:55:14,493 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:55:14,493 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:55:14,493 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:55:14,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:55:14,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:55:14,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:55:14,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:55:14,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:55:14,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:55:14,495 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:55:14,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:55:14,496 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:55:14,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:55:14,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:55:14,496 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:55:14,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:55:14,497 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:55:14,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:55:14,497 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:55:14,497 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:55:14,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:55:14,498 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:55:14,498 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:55:14,498 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:55:14,498 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_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcf5140fb8d3cca08efae44c7b81afb04deeac6d [2021-10-16 02:55:14,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:55:14,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:55:14,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:55:14,834 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:55:14,834 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:55:14,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-10-16 02:55:14,904 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/data/32f8a381e/a91b35f1f35642f5ba03b0bcaa59a5b5/FLAG2e3b692c6 [2021-10-16 02:55:15,681 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:55:15,682 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-10-16 02:55:15,723 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/data/32f8a381e/a91b35f1f35642f5ba03b0bcaa59a5b5/FLAG2e3b692c6 [2021-10-16 02:55:15,746 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/data/32f8a381e/a91b35f1f35642f5ba03b0bcaa59a5b5 [2021-10-16 02:55:15,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:55:15,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:55:15,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:55:15,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:55:15,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:55:15,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:55:15" (1/1) ... [2021-10-16 02:55:15,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe0f9d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:15, skipping insertion in model container [2021-10-16 02:55:15,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:55:15" (1/1) ... [2021-10-16 02:55:15,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:55:15,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:55:16,858 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_d3651923-90d0-4623-82d2-2d0626d2799d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-10-16 02:55:17,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:55:17,131 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) [2021-10-16 02:55:17,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@63d4915c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:17, skipping insertion in model container [2021-10-16 02:55:17,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:55:17,132 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-16 02:55:17,135 INFO L168 Benchmark]: Toolchain (without parser) took 1381.27 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 41.5 MB in the beginning and 62.2 MB in the end (delta: -20.7 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:55:17,135 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory is still 66.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:55:17,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1378.66 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 41.3 MB in the beginning and 62.6 MB in the end (delta: -21.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:55:17,138 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory is still 66.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1378.66 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 41.3 MB in the beginning and 62.6 MB in the end (delta: -21.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5975]: 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:55:19,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:55:19,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:55:19,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:55:19,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:55:19,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:55:19,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:55:19,293 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:55:19,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:55:19,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:55:19,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:55:19,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:55:19,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:55:19,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:55:19,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:55:19,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:55:19,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:55:19,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:55:19,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:55:19,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:55:19,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:55:19,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:55:19,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:55:19,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:55:19,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:55:19,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:55:19,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:55:19,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:55:19,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:55:19,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:55:19,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:55:19,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:55:19,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:55:19,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:55:19,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:55:19,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:55:19,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:55:19,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:55:19,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:55:19,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:55:19,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:55:19,369 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-10-16 02:55:19,410 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:55:19,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:55:19,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:55:19,412 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:55:19,412 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:55:19,412 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:55:19,413 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:55:19,413 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:55:19,413 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:55:19,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:55:19,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:55:19,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:55:19,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:55:19,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:55:19,416 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:55:19,417 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:55:19,417 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:55:19,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:55:19,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:55:19,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:55:19,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:55:19,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:55:19,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:55:19,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:55:19,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:55:19,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:55:19,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:55:19,419 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:55:19,419 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:55:19,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:55:19,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:55:19,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:55:19,420 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_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcf5140fb8d3cca08efae44c7b81afb04deeac6d [2021-10-16 02:55:19,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:55:19,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:55:19,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:55:19,894 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:55:19,897 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:55:19,898 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-10-16 02:55:19,974 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/data/1c4d81383/2c7fe4adf9a54211973580df1dfe5b61/FLAGdd5bca285 [2021-10-16 02:55:20,891 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:55:20,892 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-10-16 02:55:20,931 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/data/1c4d81383/2c7fe4adf9a54211973580df1dfe5b61/FLAGdd5bca285 [2021-10-16 02:55:21,377 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/data/1c4d81383/2c7fe4adf9a54211973580df1dfe5b61 [2021-10-16 02:55:21,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:55:21,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:55:21,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:55:21,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:55:21,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:55:21,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:55:21" (1/1) ... [2021-10-16 02:55:21,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1388fde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:21, skipping insertion in model container [2021-10-16 02:55:21,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:55:21" (1/1) ... [2021-10-16 02:55:21,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:55:21,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:55:22,490 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_d3651923-90d0-4623-82d2-2d0626d2799d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-10-16 02:55:22,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:55:22,765 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-16 02:55:22,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:55:23,047 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_d3651923-90d0-4623-82d2-2d0626d2799d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-10-16 02:55:23,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:55:23,123 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:55:23,504 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_d3651923-90d0-4623-82d2-2d0626d2799d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-10-16 02:55:23,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:55:23,630 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:55:23,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:23 WrapperNode [2021-10-16 02:55:23,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:55:23,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:55:23,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:55:23,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:55:23,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:23" (1/1) ... [2021-10-16 02:55:23,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:23" (1/1) ... [2021-10-16 02:55:23,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:55:23,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:55:23,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:55:23,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:55:23,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:23" (1/1) ... [2021-10-16 02:55:23,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:23" (1/1) ... [2021-10-16 02:55:23,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:23" (1/1) ... [2021-10-16 02:55:23,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:23" (1/1) ... [2021-10-16 02:55:23,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:23" (1/1) ... [2021-10-16 02:55:23,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:23" (1/1) ... [2021-10-16 02:55:23,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:23" (1/1) ... [2021-10-16 02:55:23,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:55:23,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:55:23,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:55:23,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:55:23,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:23" (1/1) ... [2021-10-16 02:55:24,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:55:24,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:55:24,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:55:24,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:55:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:55:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 02:55:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:55:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-16 02:55:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:55:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-16 02:55:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-10-16 02:55:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:55:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-16 02:55:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-10-16 02:55:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:55:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:55:27,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:55:27,189 INFO L299 CfgBuilder]: Removed 141 assume(true) statements. [2021-10-16 02:55:27,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:55:27 BoogieIcfgContainer [2021-10-16 02:55:27,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:55:27,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:55:27,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:55:27,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:55:27,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:55:21" (1/3) ... [2021-10-16 02:55:27,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5272547b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:55:27, skipping insertion in model container [2021-10-16 02:55:27,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:23" (2/3) ... [2021-10-16 02:55:27,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5272547b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:55:27, skipping insertion in model container [2021-10-16 02:55:27,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:55:27" (3/3) ... [2021-10-16 02:55:27,203 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-10-16 02:55:27,212 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:55:27,212 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-16 02:55:27,278 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:55:27,287 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, mConcurrency=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 [2021-10-16 02:55:27,287 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-16 02:55:27,320 INFO L276 IsEmpty]: Start isEmpty. Operand has 157 states, 150 states have (on average 1.5) internal successors, (225), 156 states have internal predecessors, (225), 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) [2021-10-16 02:55:27,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-16 02:55:27,329 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:27,330 INFO L512 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] [2021-10-16 02:55:27,330 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:55:27,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:27,336 INFO L82 PathProgramCache]: Analyzing trace with hash 214162578, now seen corresponding path program 1 times [2021-10-16 02:55:27,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:55:27,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982547257] [2021-10-16 02:55:27,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:27,355 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:55:27,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:55:27,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:55:27,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:55:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:28,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 02:55:28,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:28,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:28,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:28,685 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:55:28,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982547257] [2021-10-16 02:55:28,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982547257] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:55:28,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:55:28,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:55:28,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083796033] [2021-10-16 02:55:28,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:55:28,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:55:28,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:55:28,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:55:28,717 INFO L87 Difference]: Start difference. First operand has 157 states, 150 states have (on average 1.5) internal successors, (225), 156 states have internal predecessors, (225), 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 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-10-16 02:55:28,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:28,751 INFO L93 Difference]: Finished difference Result 310 states and 445 transitions. [2021-10-16 02:55:28,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:55:28,753 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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 39 [2021-10-16 02:55:28,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:28,767 INFO L225 Difference]: With dead ends: 310 [2021-10-16 02:55:28,769 INFO L226 Difference]: Without dead ends: 144 [2021-10-16 02:55:28,773 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:55:28,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-16 02:55:28,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-10-16 02:55:28,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 138 states have (on average 1.3768115942028984) internal successors, (190), 143 states have internal predecessors, (190), 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) [2021-10-16 02:55:28,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 190 transitions. [2021-10-16 02:55:28,841 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 190 transitions. Word has length 39 [2021-10-16 02:55:28,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:28,841 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 190 transitions. [2021-10-16 02:55:28,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2021-10-16 02:55:28,842 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 190 transitions. [2021-10-16 02:55:28,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-16 02:55:28,845 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:28,845 INFO L512 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] [2021-10-16 02:55:28,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:29,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:55:29,069 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:55:29,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:29,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1366579640, now seen corresponding path program 1 times [2021-10-16 02:55:29,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:55:29,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644252575] [2021-10-16 02:55:29,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:29,073 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:55:29,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:55:29,074 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:55:29,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:55:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:29,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 1236 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:55:29,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:30,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:30,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:30,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:30,290 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:55:30,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644252575] [2021-10-16 02:55:30,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644252575] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:55:30,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:55:30,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:55:30,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412057794] [2021-10-16 02:55:30,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:55:30,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:55:30,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:55:30,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:55:30,294 INFO L87 Difference]: Start difference. First operand 144 states and 190 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-10-16 02:55:30,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:30,364 INFO L93 Difference]: Finished difference Result 262 states and 355 transitions. [2021-10-16 02:55:30,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:55:30,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 39 [2021-10-16 02:55:30,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:30,367 INFO L225 Difference]: With dead ends: 262 [2021-10-16 02:55:30,367 INFO L226 Difference]: Without dead ends: 146 [2021-10-16 02:55:30,369 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:55:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-10-16 02:55:30,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-10-16 02:55:30,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 140 states have (on average 1.3714285714285714) internal successors, (192), 145 states have internal predecessors, (192), 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) [2021-10-16 02:55:30,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 192 transitions. [2021-10-16 02:55:30,385 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 192 transitions. Word has length 39 [2021-10-16 02:55:30,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:30,385 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 192 transitions. [2021-10-16 02:55:30,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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) [2021-10-16 02:55:30,397 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 192 transitions. [2021-10-16 02:55:30,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-16 02:55:30,399 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:30,399 INFO L512 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] [2021-10-16 02:55:30,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:30,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:55:30,600 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:55:30,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:30,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1435661640, now seen corresponding path program 1 times [2021-10-16 02:55:30,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:55:30,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234510664] [2021-10-16 02:55:30,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:30,605 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:55:30,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:55:30,606 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:55:30,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:55:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:31,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:55:31,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:31,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:31,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:32,041 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:32,041 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:55:32,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234510664] [2021-10-16 02:55:32,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234510664] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:55:32,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1897804810] [2021-10-16 02:55:32,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:32,042 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:55:32,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:55:32,069 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:55:32,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-10-16 02:55:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:32,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:55:32,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:33,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:55:33,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:33,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:55:33,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1897804810] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:55:33,108 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:55:33,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-10-16 02:55:33,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714836903] [2021-10-16 02:55:33,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:55:33,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:55:33,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:55:33,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:55:33,112 INFO L87 Difference]: Start difference. First operand 146 states and 192 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-10-16 02:55:33,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:33,272 INFO L93 Difference]: Finished difference Result 349 states and 481 transitions. [2021-10-16 02:55:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:55:33,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 41 [2021-10-16 02:55:33,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:33,276 INFO L225 Difference]: With dead ends: 349 [2021-10-16 02:55:33,276 INFO L226 Difference]: Without dead ends: 235 [2021-10-16 02:55:33,277 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 124.3ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:55:33,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-10-16 02:55:33,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 221. [2021-10-16 02:55:33,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 215 states have (on average 1.4325581395348836) internal successors, (308), 220 states have internal predecessors, (308), 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) [2021-10-16 02:55:33,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 308 transitions. [2021-10-16 02:55:33,296 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 308 transitions. Word has length 41 [2021-10-16 02:55:33,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:33,297 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 308 transitions. [2021-10-16 02:55:33,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-10-16 02:55:33,297 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 308 transitions. [2021-10-16 02:55:33,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-16 02:55:33,299 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:33,299 INFO L512 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] [2021-10-16 02:55:33,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:33,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-16 02:55:33,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:55:33,704 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:55:33,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:33,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1265334357, now seen corresponding path program 1 times [2021-10-16 02:55:33,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:55:33,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143826347] [2021-10-16 02:55:33,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:33,707 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:55:33,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:55:33,708 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:55:33,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:55:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:34,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:55:34,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:35,067 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:35,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:35,259 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:35,260 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:55:35,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143826347] [2021-10-16 02:55:35,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [143826347] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:55:35,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1897408602] [2021-10-16 02:55:35,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:35,261 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:55:35,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:55:35,261 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:55:35,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-16 02:55:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:36,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:55:36,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:36,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:55:36,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:36,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:55:36,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1897408602] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:55:36,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:55:36,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-10-16 02:55:36,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297054528] [2021-10-16 02:55:36,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:55:36,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:55:36,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:55:36,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:55:36,446 INFO L87 Difference]: Start difference. First operand 221 states and 308 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 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) [2021-10-16 02:55:36,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:36,456 INFO L93 Difference]: Finished difference Result 221 states and 308 transitions. [2021-10-16 02:55:36,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:55:36,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 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 44 [2021-10-16 02:55:36,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:36,460 INFO L225 Difference]: With dead ends: 221 [2021-10-16 02:55:36,460 INFO L226 Difference]: Without dead ends: 219 [2021-10-16 02:55:36,460 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 127.3ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:55:36,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-10-16 02:55:36,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-10-16 02:55:36,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 214 states have (on average 1.4299065420560748) internal successors, (306), 218 states have internal predecessors, (306), 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) [2021-10-16 02:55:36,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 306 transitions. [2021-10-16 02:55:36,481 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 306 transitions. Word has length 44 [2021-10-16 02:55:36,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:36,481 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 306 transitions. [2021-10-16 02:55:36,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 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) [2021-10-16 02:55:36,482 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 306 transitions. [2021-10-16 02:55:36,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-16 02:55:36,484 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:36,484 INFO L512 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] [2021-10-16 02:55:36,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:36,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-10-16 02:55:36,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:55:36,901 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:55:36,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:36,902 INFO L82 PathProgramCache]: Analyzing trace with hash -570652871, now seen corresponding path program 1 times [2021-10-16 02:55:36,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:55:36,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248601212] [2021-10-16 02:55:36,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:36,903 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:55:36,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:55:36,905 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:55:36,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 02:55:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:37,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:55:37,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:38,059 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:38,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:38,217 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:38,218 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:55:38,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248601212] [2021-10-16 02:55:38,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248601212] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:55:38,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [231297398] [2021-10-16 02:55:38,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:38,219 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:55:38,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:55:38,221 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:55:38,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-16 02:55:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:38,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:55:38,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:39,119 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:55:39,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:39,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:55:39,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [231297398] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:55:39,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:55:39,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-10-16 02:55:39,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040199794] [2021-10-16 02:55:39,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:55:39,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:55:39,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:55:39,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:55:39,264 INFO L87 Difference]: Start difference. First operand 219 states and 306 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) [2021-10-16 02:55:39,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:39,275 INFO L93 Difference]: Finished difference Result 219 states and 306 transitions. [2021-10-16 02:55:39,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:55:39,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-16 02:55:39,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:39,277 INFO L225 Difference]: With dead ends: 219 [2021-10-16 02:55:39,278 INFO L226 Difference]: Without dead ends: 217 [2021-10-16 02:55:39,278 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 83.4ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:55:39,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-10-16 02:55:39,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2021-10-16 02:55:39,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 213 states have (on average 1.4272300469483568) internal successors, (304), 216 states have internal predecessors, (304), 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) [2021-10-16 02:55:39,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 304 transitions. [2021-10-16 02:55:39,298 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 304 transitions. Word has length 45 [2021-10-16 02:55:39,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:39,299 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 304 transitions. [2021-10-16 02:55:39,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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) [2021-10-16 02:55:39,299 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 304 transitions. [2021-10-16 02:55:39,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-16 02:55:39,301 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:39,301 INFO L512 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] [2021-10-16 02:55:39,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:39,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:39,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:55:39,706 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:55:39,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:39,707 INFO L82 PathProgramCache]: Analyzing trace with hash -510363275, now seen corresponding path program 1 times [2021-10-16 02:55:39,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:55:39,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458750869] [2021-10-16 02:55:39,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:39,709 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:55:39,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:55:39,710 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:55:39,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-16 02:55:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:40,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:55:40,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:40,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:40,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:41,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:41,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:55:41,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458750869] [2021-10-16 02:55:41,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458750869] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:55:41,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [543590748] [2021-10-16 02:55:41,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:41,058 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:55:41,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:55:41,065 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:55:41,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-16 02:55:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:41,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:55:41,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:42,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:55:42,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:42,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:55:42,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [543590748] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:55:42,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:55:42,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-10-16 02:55:42,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824866160] [2021-10-16 02:55:42,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:55:42,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:55:42,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:55:42,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:55:42,196 INFO L87 Difference]: Start difference. First operand 217 states and 304 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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) [2021-10-16 02:55:42,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:42,207 INFO L93 Difference]: Finished difference Result 217 states and 304 transitions. [2021-10-16 02:55:42,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:55:42,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-10-16 02:55:42,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:42,211 INFO L225 Difference]: With dead ends: 217 [2021-10-16 02:55:42,211 INFO L226 Difference]: Without dead ends: 215 [2021-10-16 02:55:42,212 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 96.7ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:55:42,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-16 02:55:42,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-10-16 02:55:42,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 212 states have (on average 1.4245283018867925) internal successors, (302), 214 states have internal predecessors, (302), 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) [2021-10-16 02:55:42,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 302 transitions. [2021-10-16 02:55:42,265 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 302 transitions. Word has length 46 [2021-10-16 02:55:42,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:42,266 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 302 transitions. [2021-10-16 02:55:42,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 2 states have internal predecessors, (45), 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) [2021-10-16 02:55:42,267 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 302 transitions. [2021-10-16 02:55:42,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-16 02:55:42,275 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:42,275 INFO L512 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] [2021-10-16 02:55:42,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:42,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:42,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:55:42,676 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:55:42,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:42,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1358614211, now seen corresponding path program 1 times [2021-10-16 02:55:42,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:55:42,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372422076] [2021-10-16 02:55:42,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:42,679 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:55:42,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:55:42,712 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:55:42,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-16 02:55:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:43,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:55:43,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:43,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:43,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:44,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:55:44,152 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:55:44,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372422076] [2021-10-16 02:55:44,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372422076] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:55:44,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1028431272] [2021-10-16 02:55:44,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:44,153 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:55:44,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:55:44,164 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:55:44,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-16 02:55:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:45,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 1243 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:55:45,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:45,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:55:45,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:45,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 02:55:45,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1028431272] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:55:45,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:55:45,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5] total 9 [2021-10-16 02:55:45,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009188070] [2021-10-16 02:55:45,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:55:45,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:55:45,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:55:45,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:55:45,423 INFO L87 Difference]: Start difference. First operand 215 states and 302 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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) [2021-10-16 02:55:45,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:45,467 INFO L93 Difference]: Finished difference Result 574 states and 835 transitions. [2021-10-16 02:55:45,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:55:45,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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 47 [2021-10-16 02:55:45,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:45,471 INFO L225 Difference]: With dead ends: 574 [2021-10-16 02:55:45,472 INFO L226 Difference]: Without dead ends: 385 [2021-10-16 02:55:45,477 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 115.9ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:55:45,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-10-16 02:55:45,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 383. [2021-10-16 02:55:45,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 380 states have (on average 1.4552631578947368) internal successors, (553), 382 states have internal predecessors, (553), 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) [2021-10-16 02:55:45,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 553 transitions. [2021-10-16 02:55:45,507 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 553 transitions. Word has length 47 [2021-10-16 02:55:45,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:45,509 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 553 transitions. [2021-10-16 02:55:45,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 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) [2021-10-16 02:55:45,511 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 553 transitions. [2021-10-16 02:55:45,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-16 02:55:45,516 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:45,517 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-16 02:55:45,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:45,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:45,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:55:45,922 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:55:45,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:45,923 INFO L82 PathProgramCache]: Analyzing trace with hash 253710387, now seen corresponding path program 1 times [2021-10-16 02:55:45,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:55:45,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399513238] [2021-10-16 02:55:45,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:45,924 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:55:45,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:55:45,925 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:55:45,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-16 02:55:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:47,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:55:47,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:47,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 02:55:47,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:47,548 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 02:55:47,549 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:55:47,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399513238] [2021-10-16 02:55:47,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399513238] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:55:47,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1070932610] [2021-10-16 02:55:47,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:47,549 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:55:47,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:55:47,552 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:55:47,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-10-16 02:55:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:48,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:55:48,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:48,778 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 02:55:48,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:48,913 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 02:55:48,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1070932610] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:55:48,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:55:48,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-10-16 02:55:48,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406234396] [2021-10-16 02:55:48,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:55:48,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:55:48,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:55:48,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:55:48,915 INFO L87 Difference]: Start difference. First operand 383 states and 553 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:55:49,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:49,947 INFO L93 Difference]: Finished difference Result 734 states and 1073 transitions. [2021-10-16 02:55:49,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:55:49,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-10-16 02:55:49,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:49,951 INFO L225 Difference]: With dead ends: 734 [2021-10-16 02:55:49,951 INFO L226 Difference]: Without dead ends: 383 [2021-10-16 02:55:49,952 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 111.6ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:55:49,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2021-10-16 02:55:49,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2021-10-16 02:55:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 380 states have (on average 1.45) internal successors, (551), 382 states have internal predecessors, (551), 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) [2021-10-16 02:55:49,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 551 transitions. [2021-10-16 02:55:49,974 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 551 transitions. Word has length 68 [2021-10-16 02:55:49,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:49,975 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 551 transitions. [2021-10-16 02:55:49,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:55:49,975 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 551 transitions. [2021-10-16 02:55:49,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-16 02:55:49,977 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:49,977 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-16 02:55:50,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:50,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2021-10-16 02:55:50,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:55:50,393 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:55:50,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:50,393 INFO L82 PathProgramCache]: Analyzing trace with hash 332091450, now seen corresponding path program 1 times [2021-10-16 02:55:50,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:55:50,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142294004] [2021-10-16 02:55:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:50,395 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:55:50,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:55:50,396 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:55:50,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-16 02:55:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:51,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:55:51,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:51,818 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 02:55:51,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:52,061 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 02:55:52,061 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:55:52,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142294004] [2021-10-16 02:55:52,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142294004] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:55:52,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1349527128] [2021-10-16 02:55:52,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:52,062 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:55:52,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:55:52,063 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:55:52,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-10-16 02:55:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:54,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:55:54,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:54,444 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 02:55:54,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:54,657 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-16 02:55:54,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1349527128] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:55:54,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613759195] [2021-10-16 02:55:54,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:54,659 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:55:54,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:55:54,661 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:55:54,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-16 02:55:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:55,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 02:55:55,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:55,969 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 02:55:55,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:56,121 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 02:55:56,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613759195] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:55:56,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-16 02:55:56,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [5, 5, 5, 5] total 13 [2021-10-16 02:55:56,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85389832] [2021-10-16 02:55:56,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 02:55:56,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:55:56,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 02:55:56,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-16 02:55:56,124 INFO L87 Difference]: Start difference. First operand 383 states and 551 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2021-10-16 02:55:56,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:55:56,380 INFO L93 Difference]: Finished difference Result 1385 states and 2054 transitions. [2021-10-16 02:55:56,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 02:55:56,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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 69 [2021-10-16 02:55:56,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:55:56,388 INFO L225 Difference]: With dead ends: 1385 [2021-10-16 02:55:56,388 INFO L226 Difference]: Without dead ends: 1034 [2021-10-16 02:55:56,390 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 399 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 285.0ms TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-10-16 02:55:56,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-10-16 02:55:56,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 381. [2021-10-16 02:55:56,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 379 states have (on average 1.4485488126649078) internal successors, (549), 380 states have internal predecessors, (549), 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) [2021-10-16 02:55:56,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 549 transitions. [2021-10-16 02:55:56,421 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 549 transitions. Word has length 69 [2021-10-16 02:55:56,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:55:56,421 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 549 transitions. [2021-10-16 02:55:56,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 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) [2021-10-16 02:55:56,422 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 549 transitions. [2021-10-16 02:55:56,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-10-16 02:55:56,424 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:56,424 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-16 02:55:56,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:56,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-10-16 02:55:56,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:57,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:55:57,033 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-16 02:55:57,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:57,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1703397231, now seen corresponding path program 1 times [2021-10-16 02:55:57,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:55:57,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152000132] [2021-10-16 02:55:57,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:57,034 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:55:57,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:55:57,035 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:55:57,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-16 02:55:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:55:58,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:55:58,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:55:58,574 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-16 02:55:58,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:55:58,839 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-16 02:55:58,839 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:55:58,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152000132] [2021-10-16 02:55:58,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152000132] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:55:58,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1192416215] [2021-10-16 02:55:58,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:58,840 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:55:58,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:55:58,847 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:55:58,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-10-16 02:56:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:56:01,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:56:01,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:56:01,385 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-16 02:56:01,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:56:01,562 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-16 02:56:01,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1192416215] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:56:01,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839348036] [2021-10-16 02:56:01,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:56:01,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:56:01,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:56:01,564 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:56:01,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-16 02:56:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:56:02,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:56:02,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:56:03,016 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 02:56:03,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:56:03,225 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-16 02:56:03,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839348036] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:56:03,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-16 02:56:03,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5, 5, 5] total 14 [2021-10-16 02:56:03,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583848115] [2021-10-16 02:56:03,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 02:56:03,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:56:03,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 02:56:03,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-10-16 02:56:03,227 INFO L87 Difference]: Start difference. First operand 381 states and 549 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 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) [2021-10-16 02:56:03,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:56:03,330 INFO L93 Difference]: Finished difference Result 536 states and 785 transitions. [2021-10-16 02:56:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:56:03,331 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-10-16 02:56:03,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:56:03,332 INFO L225 Difference]: With dead ends: 536 [2021-10-16 02:56:03,332 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:56:03,333 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 252.8ms TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2021-10-16 02:56:03,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:56:03,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:56:03,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-16 02:56:03,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:56:03,334 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2021-10-16 02:56:03,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:56:03,334 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:56:03,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 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) [2021-10-16 02:56:03,334 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:56:03,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:56:03,338 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:56:03,338 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:56:03,338 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:56:03,339 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:56:03,339 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:56:03,339 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:56:03,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-16 02:56:03,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-16 02:56:03,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2021-10-16 02:56:03,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:56:03,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:56:03,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,086 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,206 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,209 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,228 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,231 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:56:04,917 INFO L857 garLoopResultBuilder]: For program point L6047(lines 6047 6062) no Hoare annotation was computed. [2021-10-16 02:56:04,918 INFO L857 garLoopResultBuilder]: For program point L6080-2(lines 6067 6122) no Hoare annotation was computed. [2021-10-16 02:56:04,918 INFO L857 garLoopResultBuilder]: For program point L6113(lines 6113 6116) no Hoare annotation was computed. [2021-10-16 02:56:04,918 INFO L857 garLoopResultBuilder]: For program point L6080(lines 6080 6085) no Hoare annotation was computed. [2021-10-16 02:56:04,918 INFO L853 garLoopResultBuilder]: At program point L7005(lines 7004 7006) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,918 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-10-16 02:56:04,918 INFO L857 garLoopResultBuilder]: For program point L6213(line 6213) no Hoare annotation was computed. [2021-10-16 02:56:04,919 INFO L857 garLoopResultBuilder]: For program point L6973(lines 6964 6982) no Hoare annotation was computed. [2021-10-16 02:56:04,919 INFO L857 garLoopResultBuilder]: For program point L6049(lines 6049 6059) no Hoare annotation was computed. [2021-10-16 02:56:04,919 INFO L853 garLoopResultBuilder]: At program point L6347(lines 6336 6349) the Hoare annotation is: (and (not (bvsge |ULTIMATE.start_ldv_undef_int_negative_#res| (_ bv0 32))) (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (not (bvsge ULTIMATE.start_ldv_undef_int_negative_~ret~0 (_ bv0 32))) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,919 INFO L857 garLoopResultBuilder]: For program point L6050(line 6050) no Hoare annotation was computed. [2021-10-16 02:56:04,919 INFO L857 garLoopResultBuilder]: For program point L5852(lines 5852 5855) no Hoare annotation was computed. [2021-10-16 02:56:04,919 INFO L857 garLoopResultBuilder]: For program point L5720-1(lines 5720 5722) no Hoare annotation was computed. [2021-10-16 02:56:04,919 INFO L857 garLoopResultBuilder]: For program point L5720-2(lines 5720 5722) no Hoare annotation was computed. [2021-10-16 02:56:04,919 INFO L857 garLoopResultBuilder]: For program point L5720(lines 5720 5722) no Hoare annotation was computed. [2021-10-16 02:56:04,919 INFO L857 garLoopResultBuilder]: For program point L5720-5(lines 5720 5722) no Hoare annotation was computed. [2021-10-16 02:56:04,919 INFO L857 garLoopResultBuilder]: For program point L5720-6(lines 5720 5722) no Hoare annotation was computed. [2021-10-16 02:56:04,920 INFO L857 garLoopResultBuilder]: For program point L5720-3(lines 5720 5722) no Hoare annotation was computed. [2021-10-16 02:56:04,920 INFO L857 garLoopResultBuilder]: For program point L5720-4(lines 5720 5722) no Hoare annotation was computed. [2021-10-16 02:56:04,920 INFO L857 garLoopResultBuilder]: For program point L6051(lines 6051 6055) no Hoare annotation was computed. [2021-10-16 02:56:04,920 INFO L853 garLoopResultBuilder]: At program point L7009(lines 7008 7010) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,920 INFO L857 garLoopResultBuilder]: For program point L5721-2(line 5721) no Hoare annotation was computed. [2021-10-16 02:56:04,920 INFO L857 garLoopResultBuilder]: For program point L5721(line 5721) no Hoare annotation was computed. [2021-10-16 02:56:04,920 INFO L857 garLoopResultBuilder]: For program point L5721-6(line 5721) no Hoare annotation was computed. [2021-10-16 02:56:04,920 INFO L857 garLoopResultBuilder]: For program point L5721-4(line 5721) no Hoare annotation was computed. [2021-10-16 02:56:04,920 INFO L857 garLoopResultBuilder]: For program point L5721-10(line 5721) no Hoare annotation was computed. [2021-10-16 02:56:04,920 INFO L857 garLoopResultBuilder]: For program point L5721-8(line 5721) no Hoare annotation was computed. [2021-10-16 02:56:04,921 INFO L857 garLoopResultBuilder]: For program point L5721-12(line 5721) no Hoare annotation was computed. [2021-10-16 02:56:04,921 INFO L857 garLoopResultBuilder]: For program point L6184(line 6184) no Hoare annotation was computed. [2021-10-16 02:56:04,921 INFO L853 garLoopResultBuilder]: At program point L5953(lines 5948 5955) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,921 INFO L860 garLoopResultBuilder]: At program point L6977(lines 6962 6983) the Hoare annotation is: true [2021-10-16 02:56:04,921 INFO L857 garLoopResultBuilder]: For program point L6185(lines 6185 6200) no Hoare annotation was computed. [2021-10-16 02:56:04,921 INFO L853 garLoopResultBuilder]: At program point L6318(lines 6307 6320) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,921 INFO L853 garLoopResultBuilder]: At program point L6153(lines 6965 6968) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,921 INFO L857 garLoopResultBuilder]: For program point L6120(line 6120) no Hoare annotation was computed. [2021-10-16 02:56:04,921 INFO L857 garLoopResultBuilder]: For program point L6946(lines 6946 6952) no Hoare annotation was computed. [2021-10-16 02:56:04,922 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-10-16 02:56:04,922 INFO L857 garLoopResultBuilder]: For program point L6187(lines 6187 6197) no Hoare annotation was computed. [2021-10-16 02:56:04,922 INFO L857 garLoopResultBuilder]: For program point L6220(line 6220) no Hoare annotation was computed. [2021-10-16 02:56:04,926 INFO L853 garLoopResultBuilder]: At program point L7013(lines 7012 7014) the Hoare annotation is: (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) (= ULTIMATE.start_m5632_recover_~r~0 (_ bv0 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,927 INFO L857 garLoopResultBuilder]: For program point L6188(line 6188) no Hoare annotation was computed. [2021-10-16 02:56:04,927 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-10-16 02:56:04,927 INFO L857 garLoopResultBuilder]: For program point L6189(lines 6189 6193) no Hoare annotation was computed. [2021-10-16 02:56:04,927 INFO L857 garLoopResultBuilder]: For program point L6057(line 6057) no Hoare annotation was computed. [2021-10-16 02:56:04,927 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-10-16 02:56:04,928 INFO L853 garLoopResultBuilder]: At program point L6223(lines 6002 6228) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,928 INFO L853 garLoopResultBuilder]: At program point L7016-1(lines 7015 7017) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,928 INFO L853 garLoopResultBuilder]: At program point L7016(lines 7015 7017) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,928 INFO L857 garLoopResultBuilder]: For program point L6917-1(lines 6917 6920) no Hoare annotation was computed. [2021-10-16 02:56:04,928 INFO L857 garLoopResultBuilder]: For program point L6917(lines 6917 6920) no Hoare annotation was computed. [2021-10-16 02:56:04,929 INFO L853 garLoopResultBuilder]: At program point L6951(lines 6940 6954) the Hoare annotation is: (let ((.cse0 (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32))) (.cse1 (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32))) (.cse2 (= ~ldv_mutex_lock~0 (_ bv1 32)))) (or (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) .cse0 .cse1 (= ~ldv_mutex_udev~0 (_ bv2 32)) .cse2) (and (not (bvsge |ULTIMATE.start_ldv_undef_int_negative_#res| (_ bv0 32))) .cse0 .cse1 (not (bvsge ULTIMATE.start_ldv_undef_int_negative_~ret~0 (_ bv0 32))) (= ~ldv_mutex_udev~0 (_ bv1 32)) .cse2 (not (bvsge |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)))))) [2021-10-16 02:56:04,929 INFO L860 garLoopResultBuilder]: At program point L5795(lines 5794 5797) the Hoare annotation is: true [2021-10-16 02:56:04,929 INFO L860 garLoopResultBuilder]: At program point L5795-1(lines 5794 5797) the Hoare annotation is: true [2021-10-16 02:56:04,930 INFO L860 garLoopResultBuilder]: At program point L5795-4(lines 5794 5797) the Hoare annotation is: true [2021-10-16 02:56:04,930 INFO L860 garLoopResultBuilder]: At program point L5795-5(lines 5794 5797) the Hoare annotation is: true [2021-10-16 02:56:04,930 INFO L860 garLoopResultBuilder]: At program point L5795-2(lines 5794 5797) the Hoare annotation is: true [2021-10-16 02:56:04,930 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-10-16 02:56:04,930 INFO L860 garLoopResultBuilder]: At program point L5795-3(lines 5794 5797) the Hoare annotation is: true [2021-10-16 02:56:04,931 INFO L860 garLoopResultBuilder]: At program point L5795-8(lines 5794 5797) the Hoare annotation is: true [2021-10-16 02:56:04,931 INFO L860 garLoopResultBuilder]: At program point L5795-6(lines 5794 5797) the Hoare annotation is: true [2021-10-16 02:56:04,931 INFO L860 garLoopResultBuilder]: At program point L5795-7(lines 5794 5797) the Hoare annotation is: true [2021-10-16 02:56:04,931 INFO L857 garLoopResultBuilder]: For program point L6159(line 6159) no Hoare annotation was computed. [2021-10-16 02:56:04,931 INFO L857 garLoopResultBuilder]: For program point L6027(lines 6027 6222) no Hoare annotation was computed. [2021-10-16 02:56:04,931 INFO L857 garLoopResultBuilder]: For program point L6093(line 6093) no Hoare annotation was computed. [2021-10-16 02:56:04,931 INFO L853 garLoopResultBuilder]: At program point L6985(lines 6984 6986) the Hoare annotation is: (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) (= ULTIMATE.start_m5632_recover_~r~0 (_ bv0 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,932 INFO L857 garLoopResultBuilder]: For program point L6127(line 6127) no Hoare annotation was computed. [2021-10-16 02:56:04,932 INFO L857 garLoopResultBuilder]: For program point L6094(lines 6094 6098) no Hoare annotation was computed. [2021-10-16 02:56:04,932 INFO L857 garLoopResultBuilder]: For program point L6028(line 6028) no Hoare annotation was computed. [2021-10-16 02:56:04,932 INFO L853 garLoopResultBuilder]: At program point L6326(lines 1 7033) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,932 INFO L860 garLoopResultBuilder]: At program point L6227(lines 5979 6229) the Hoare annotation is: true [2021-10-16 02:56:04,933 INFO L857 garLoopResultBuilder]: For program point L6128(lines 6128 6164) no Hoare annotation was computed. [2021-10-16 02:56:04,933 INFO L857 garLoopResultBuilder]: For program point L6029(lines 6029 6044) no Hoare annotation was computed. [2021-10-16 02:56:04,933 INFO L853 garLoopResultBuilder]: At program point L7020(lines 7019 7021) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,933 INFO L853 garLoopResultBuilder]: At program point L5765-2(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,934 INFO L853 garLoopResultBuilder]: At program point L5765-3(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,934 INFO L853 garLoopResultBuilder]: At program point L5765(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,934 INFO L853 garLoopResultBuilder]: At program point L5765-1(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,934 INFO L853 garLoopResultBuilder]: At program point L5765-6(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,934 INFO L853 garLoopResultBuilder]: At program point L5765-4(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,935 INFO L853 garLoopResultBuilder]: At program point L5765-5(lines 5757 5767) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,935 INFO L857 garLoopResultBuilder]: For program point L6195(line 6195) no Hoare annotation was computed. [2021-10-16 02:56:04,935 INFO L853 garLoopResultBuilder]: At program point L6922(lines 1 7033) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,935 INFO L853 garLoopResultBuilder]: At program point L6988(lines 6987 6989) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,937 INFO L857 garLoopResultBuilder]: For program point L6856-1(lines 6856 6859) no Hoare annotation was computed. [2021-10-16 02:56:04,937 INFO L857 garLoopResultBuilder]: For program point L6856(lines 6856 6859) no Hoare annotation was computed. [2021-10-16 02:56:04,937 INFO L857 garLoopResultBuilder]: For program point L6130(lines 6130 6161) no Hoare annotation was computed. [2021-10-16 02:56:04,937 INFO L857 garLoopResultBuilder]: For program point L6031(lines 6031 6041) no Hoare annotation was computed. [2021-10-16 02:56:04,937 INFO L857 garLoopResultBuilder]: For program point L6064(line 6064) no Hoare annotation was computed. [2021-10-16 02:56:04,937 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:56:04,938 INFO L853 garLoopResultBuilder]: At program point L6296(lines 6291 6298) the Hoare annotation is: (let ((.cse0 (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32))) (.cse1 (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32))) (.cse2 (= ~ldv_mutex_lock~0 (_ bv1 32)))) (or (and (not (bvsge |ULTIMATE.start_ldv_undef_int_negative_#res| (_ bv0 32))) .cse0 .cse1 (not (bvsge ULTIMATE.start_ldv_undef_int_negative_~ret~0 (_ bv0 32))) (= ~ldv_mutex_udev~0 (_ bv1 32)) .cse2 (not (bvsge |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32))) (not (bvsge |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)))) (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res| (_ bv0 32)) .cse0 .cse1 (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res| (_ bv0 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) .cse2))) [2021-10-16 02:56:04,938 INFO L857 garLoopResultBuilder]: For program point L6131(line 6131) no Hoare annotation was computed. [2021-10-16 02:56:04,938 INFO L857 garLoopResultBuilder]: For program point L6065(lines 6065 6125) no Hoare annotation was computed. [2021-10-16 02:56:04,938 INFO L857 garLoopResultBuilder]: For program point L6032(line 6032) no Hoare annotation was computed. [2021-10-16 02:56:04,938 INFO L857 garLoopResultBuilder]: For program point L6132(lines 6132 6137) no Hoare annotation was computed. [2021-10-16 02:56:04,938 INFO L857 garLoopResultBuilder]: For program point L6033(lines 6033 6037) no Hoare annotation was computed. [2021-10-16 02:56:04,939 INFO L853 garLoopResultBuilder]: At program point L7024(lines 7023 7025) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,939 INFO L857 garLoopResultBuilder]: For program point L6166(line 6166) no Hoare annotation was computed. [2021-10-16 02:56:04,939 INFO L857 garLoopResultBuilder]: For program point L6067(lines 6067 6122) no Hoare annotation was computed. [2021-10-16 02:56:04,939 INFO L857 garLoopResultBuilder]: For program point L6100(line 6100) no Hoare annotation was computed. [2021-10-16 02:56:04,939 INFO L853 garLoopResultBuilder]: At program point L6992(lines 6991 6993) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,939 INFO L857 garLoopResultBuilder]: For program point L6332-2(line 6332) no Hoare annotation was computed. [2021-10-16 02:56:04,940 INFO L857 garLoopResultBuilder]: For program point L6332-1(line 6332) no Hoare annotation was computed. [2021-10-16 02:56:04,940 INFO L857 garLoopResultBuilder]: For program point L6332(line 6332) no Hoare annotation was computed. [2021-10-16 02:56:04,940 INFO L857 garLoopResultBuilder]: For program point L6167(lines 6167 6182) no Hoare annotation was computed. [2021-10-16 02:56:04,940 INFO L857 garLoopResultBuilder]: For program point L6332-5(line 6332) no Hoare annotation was computed. [2021-10-16 02:56:04,940 INFO L857 garLoopResultBuilder]: For program point L6332-4(line 6332) no Hoare annotation was computed. [2021-10-16 02:56:04,940 INFO L857 garLoopResultBuilder]: For program point L6332-3(line 6332) no Hoare annotation was computed. [2021-10-16 02:56:04,940 INFO L857 garLoopResultBuilder]: For program point L6101(lines 6101 6108) no Hoare annotation was computed. [2021-10-16 02:56:04,941 INFO L857 garLoopResultBuilder]: For program point L6068(line 6068) no Hoare annotation was computed. [2021-10-16 02:56:04,941 INFO L853 garLoopResultBuilder]: At program point L6861(lines 6853 6863) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv2 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,941 INFO L857 garLoopResultBuilder]: For program point L6069(lines 6069 6077) no Hoare annotation was computed. [2021-10-16 02:56:04,941 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:56:04,941 INFO L857 garLoopResultBuilder]: For program point L6202(line 6202) no Hoare annotation was computed. [2021-10-16 02:56:04,941 INFO L857 garLoopResultBuilder]: For program point L6103(lines 6103 6106) no Hoare annotation was computed. [2021-10-16 02:56:04,941 INFO L857 garLoopResultBuilder]: For program point L6169(lines 6169 6179) no Hoare annotation was computed. [2021-10-16 02:56:04,942 INFO L853 garLoopResultBuilder]: At program point L7028(lines 7027 7029) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,942 INFO L853 garLoopResultBuilder]: At program point L5773(lines 5768 5775) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,942 INFO L857 garLoopResultBuilder]: For program point L6203(lines 6203 6218) no Hoare annotation was computed. [2021-10-16 02:56:04,942 INFO L857 garLoopResultBuilder]: For program point L6170(line 6170) no Hoare annotation was computed. [2021-10-16 02:56:04,942 INFO L857 garLoopResultBuilder]: For program point L6071(lines 6071 6075) no Hoare annotation was computed. [2021-10-16 02:56:04,942 INFO L853 garLoopResultBuilder]: At program point L5840-1(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,943 INFO L853 garLoopResultBuilder]: At program point L5840-2(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,943 INFO L853 garLoopResultBuilder]: At program point L5840(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,943 INFO L853 garLoopResultBuilder]: At program point L5840-3(lines 5837 5842) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,943 INFO L857 garLoopResultBuilder]: For program point L6171(lines 6171 6175) no Hoare annotation was computed. [2021-10-16 02:56:04,943 INFO L857 garLoopResultBuilder]: For program point L6039(line 6039) no Hoare annotation was computed. [2021-10-16 02:56:04,943 INFO L857 garLoopResultBuilder]: For program point L6139(line 6139) no Hoare annotation was computed. [2021-10-16 02:56:04,944 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:56:04,944 INFO L857 garLoopResultBuilder]: For program point L6205(lines 6205 6215) no Hoare annotation was computed. [2021-10-16 02:56:04,944 INFO L857 garLoopResultBuilder]: For program point L6965(lines 6964 6982) no Hoare annotation was computed. [2021-10-16 02:56:04,944 INFO L857 garLoopResultBuilder]: For program point L6206(line 6206) no Hoare annotation was computed. [2021-10-16 02:56:04,944 INFO L857 garLoopResultBuilder]: For program point L6140(lines 6140 6157) no Hoare annotation was computed. [2021-10-16 02:56:04,944 INFO L857 garLoopResultBuilder]: For program point L6207(lines 6207 6211) no Hoare annotation was computed. [2021-10-16 02:56:04,944 INFO L853 garLoopResultBuilder]: At program point L5976(lines 5970 5978) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,945 INFO L857 garLoopResultBuilder]: For program point L6142(lines 6142 6150) no Hoare annotation was computed. [2021-10-16 02:56:04,945 INFO L857 garLoopResultBuilder]: For program point L6142-2(lines 6140 6156) no Hoare annotation was computed. [2021-10-16 02:56:04,945 INFO L857 garLoopResultBuilder]: For program point L6110(line 6110) no Hoare annotation was computed. [2021-10-16 02:56:04,946 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:56:04,946 INFO L857 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2021-10-16 02:56:04,946 INFO L857 garLoopResultBuilder]: For program point L-1-2(line -1) no Hoare annotation was computed. [2021-10-16 02:56:04,946 INFO L857 garLoopResultBuilder]: For program point L-1-3(line -1) no Hoare annotation was computed. [2021-10-16 02:56:04,946 INFO L857 garLoopResultBuilder]: For program point L-1-4(line -1) no Hoare annotation was computed. [2021-10-16 02:56:04,946 INFO L857 garLoopResultBuilder]: For program point L-1-5(line -1) no Hoare annotation was computed. [2021-10-16 02:56:04,947 INFO L857 garLoopResultBuilder]: For program point L-1-6(line -1) no Hoare annotation was computed. [2021-10-16 02:56:04,947 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-10-16 02:56:04,947 INFO L853 garLoopResultBuilder]: At program point L-1-8(line -1) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= (_ bv0 32) ~ldv_state_variable_6~0) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,947 INFO L857 garLoopResultBuilder]: For program point L-1-9(line -1) no Hoare annotation was computed. [2021-10-16 02:56:04,947 INFO L857 garLoopResultBuilder]: For program point L6969(lines 6964 6982) no Hoare annotation was computed. [2021-10-16 02:56:04,947 INFO L857 garLoopResultBuilder]: For program point L-1-10(line -1) no Hoare annotation was computed. [2021-10-16 02:56:04,948 INFO L857 garLoopResultBuilder]: For program point L6111(lines 6111 6118) no Hoare annotation was computed. [2021-10-16 02:56:04,948 INFO L857 garLoopResultBuilder]: For program point L6177(line 6177) no Hoare annotation was computed. [2021-10-16 02:56:04,948 INFO L853 garLoopResultBuilder]: At program point L5781(lines 5776 5783) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,948 INFO L853 garLoopResultBuilder]: At program point L5781-1(lines 5776 5783) the Hoare annotation is: (and (= ~ldv_mutex_mutex_of_device~0 (_ bv1 32)) (= ~ldv_mutex_i_mutex_of_inode~0 (_ bv1 32)) (= ~ldv_mutex_udev~0 (_ bv1 32)) (= ~ldv_mutex_lock~0 (_ bv1 32))) [2021-10-16 02:56:04,948 INFO L857 garLoopResultBuilder]: For program point L6343-1(lines 6343 6346) no Hoare annotation was computed. [2021-10-16 02:56:04,948 INFO L857 garLoopResultBuilder]: For program point L6343(lines 6343 6346) no Hoare annotation was computed. [2021-10-16 02:56:04,948 INFO L857 garLoopResultBuilder]: For program point L6079(line 6079) no Hoare annotation was computed. [2021-10-16 02:56:04,949 INFO L857 garLoopResultBuilder]: For program point L6046(line 6046) no Hoare annotation was computed. [2021-10-16 02:56:04,954 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:56:04,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:56:04 BoogieIcfgContainer [2021-10-16 02:56:04,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:56:04,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:56:04,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:56:04,999 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:56:05,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:55:27" (3/4) ... [2021-10-16 02:56:05,003 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:56:05,037 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2021-10-16 02:56:05,040 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-16 02:56:05,042 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-16 02:56:05,045 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:56:05,048 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:56:05,092 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) || ((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) [2021-10-16 02:56:05,092 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) && !~bvsge32(\result, 0bv32)) || (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) [2021-10-16 02:56:05,093 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 [2021-10-16 02:56:05,093 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 [2021-10-16 02:56:05,093 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 [2021-10-16 02:56:05,414 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:56:05,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:56:05,416 INFO L168 Benchmark]: Toolchain (without parser) took 44033.91 ms. Allocated memory was 50.3 MB in the beginning and 432.0 MB in the end (delta: 381.7 MB). Free memory was 27.4 MB in the beginning and 278.0 MB in the end (delta: -250.6 MB). Peak memory consumption was 290.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:05,417 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory was 30.3 MB in the beginning and 30.2 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:56:05,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2246.81 ms. Allocated memory was 50.3 MB in the beginning and 125.8 MB in the end (delta: 75.5 MB). Free memory was 27.2 MB in the beginning and 68.2 MB in the end (delta: -41.0 MB). Peak memory consumption was 58.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:05,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 182.43 ms. Allocated memory is still 125.8 MB. Free memory was 68.2 MB in the beginning and 59.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:05,418 INFO L168 Benchmark]: Boogie Preprocessor took 176.74 ms. Allocated memory is still 125.8 MB. Free memory was 59.3 MB in the beginning and 71.3 MB in the end (delta: -12.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:05,418 INFO L168 Benchmark]: RCFGBuilder took 3199.56 ms. Allocated memory was 125.8 MB in the beginning and 249.6 MB in the end (delta: 123.7 MB). Free memory was 70.7 MB in the beginning and 135.1 MB in the end (delta: -64.4 MB). Peak memory consumption was 88.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:05,419 INFO L168 Benchmark]: TraceAbstraction took 37802.98 ms. Allocated memory was 249.6 MB in the beginning and 432.0 MB in the end (delta: 182.5 MB). Free memory was 135.1 MB in the beginning and 189.6 MB in the end (delta: -54.5 MB). Peak memory consumption was 127.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:05,419 INFO L168 Benchmark]: Witness Printer took 415.94 ms. Allocated memory is still 432.0 MB. Free memory was 189.6 MB in the beginning and 278.0 MB in the end (delta: -88.4 MB). Peak memory consumption was 72.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:05,421 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 50.3 MB. Free memory was 30.3 MB in the beginning and 30.2 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2246.81 ms. Allocated memory was 50.3 MB in the beginning and 125.8 MB in the end (delta: 75.5 MB). Free memory was 27.2 MB in the beginning and 68.2 MB in the end (delta: -41.0 MB). Peak memory consumption was 58.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 182.43 ms. Allocated memory is still 125.8 MB. Free memory was 68.2 MB in the beginning and 59.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 176.74 ms. Allocated memory is still 125.8 MB. Free memory was 59.3 MB in the beginning and 71.3 MB in the end (delta: -12.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3199.56 ms. Allocated memory was 125.8 MB in the beginning and 249.6 MB in the end (delta: 123.7 MB). Free memory was 70.7 MB in the beginning and 135.1 MB in the end (delta: -64.4 MB). Peak memory consumption was 88.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 37802.98 ms. Allocated memory was 249.6 MB in the beginning and 432.0 MB in the end (delta: 182.5 MB). Free memory was 135.1 MB in the beginning and 189.6 MB in the end (delta: -54.5 MB). Peak memory consumption was 127.0 MB. Max. memory is 16.1 GB. * Witness Printer took 415.94 ms. Allocated memory is still 432.0 MB. Free memory was 189.6 MB in the beginning and 278.0 MB in the end (delta: -88.4 MB). Peak memory consumption was 72.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 157 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 37677.2ms, OverallIterations: 10, TraceHistogramMax: 3, EmptinessCheckTime: 43.7ms, AutomataDifference: 1830.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 963.8ms, InitialAbstractionConstructionTime: 24.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2389 SDtfs, 2554 SDslu, 3244 SDs, 0 SdLazy, 89 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1245.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2149 GetRequests, 2074 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1248.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=383occurred in iteration=7, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 263.6ms AutomataMinimizationTime, 10 MinimizatonAttempts, 669 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 48 LocationsWithAnnotation, 48 PreInvPairs, 149 NumberOfFragments, 610 HoareAnnotationTreeSize, 48 FomulaSimplifications, 5047 FormulaSimplificationTreeSizeReduction, 453.2ms HoareSimplificationTime, 48 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 496.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1140.3ms SsaConstructionTime, 13245.4ms SatisfiabilityAnalysisTime, 8732.8ms InterpolantComputationTime, 1089 NumberOfCodeBlocks, 1089 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2138 ConstructedInterpolants, 0 QuantifiedInterpolants, 3207 SizeOfPredicates, 55 NumberOfNonLiveVariables, 25760 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 40 InterpolantComputations, 20 PerfectInterpolantSequences, 140/200 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 7008]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7019]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7027]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5970]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6987]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5776]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6965]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5979]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7015]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6336]: Loop Invariant Derived loop invariant: ((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6853]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6940]: Loop Invariant Derived loop invariant: ((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) || ((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) - InvariantResult [Line: 6984]: Loop Invariant Derived loop invariant: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 7023]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7004]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6002]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5768]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6962]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6307]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5837]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 6291]: Loop Invariant Derived loop invariant: (((((((!~bvsge32(\result, 0bv32) && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && !~bvsge32(ret, 0bv32)) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32) && !~bvsge32(\result, 0bv32)) && !~bvsge32(\result, 0bv32)) || (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && ldv_mutex_lock == 1bv32) - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7015]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6991]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 7012]: Loop Invariant Derived loop invariant: (((((\result == 0bv32 && ldv_mutex_mutex_of_device == 1bv32) && ldv_mutex_i_mutex_of_inode == 1bv32) && \result == 0bv32) && ldv_mutex_udev == 2bv32) && r == 0bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5757]: Loop Invariant Derived loop invariant: (((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && 0bv32 == ldv_state_variable_6) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5776]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 - InvariantResult [Line: 5794]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5948]: Loop Invariant Derived loop invariant: ((ldv_mutex_mutex_of_device == 1bv32 && ldv_mutex_i_mutex_of_inode == 1bv32) && ldv_mutex_udev == 1bv32) && ldv_mutex_lock == 1bv32 RESULT: Ultimate proved your program to be correct! [2021-10-16 02:56:05,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3651923-90d0-4623-82d2-2d0626d2799d/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...