./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8 --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 32bit --witnessprinter.graph.data.programhash cf24413c974632111c219883460f59cc521163aa ............................................................................................................................................ 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_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8 --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 32bit --witnessprinter.graph.data.programhash cf24413c974632111c219883460f59cc521163aa ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:45:15,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:45:15,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:45:15,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:45:15,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:45:15,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:45:15,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:45:15,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:45:15,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:45:15,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:45:15,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:45:15,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:45:15,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:45:15,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:45:15,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:45:15,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:45:15,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:45:15,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:45:15,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:45:15,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:45:15,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:45:15,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:45:15,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:45:15,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:45:15,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:45:15,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:45:15,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:45:15,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:45:15,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:45:15,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:45:15,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:45:15,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:45:15,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:45:15,603 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:45:15,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:45:15,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:45:15,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:45:15,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:45:15,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:45:15,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:45:15,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:45:15,613 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:45:15,654 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:45:15,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:45:15,655 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:45:15,655 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:45:15,655 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:45:15,656 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:45:15,656 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:45:15,656 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:45:15,666 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:45:15,667 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:45:15,668 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:45:15,668 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:45:15,668 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:45:15,668 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:45:15,669 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:45:15,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:45:15,670 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:45:15,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:45:15,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:45:15,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:45:15,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:45:15,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:45:15,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:45:15,671 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:45:15,671 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:45:15,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:45:15,672 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:45:15,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:45:15,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:45:15,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:45:15,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:45:15,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:45:15,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:45:15,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:45:15,676 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:45:15,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:45:15,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:45:15,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:45:15,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:45:15,677 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_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf24413c974632111c219883460f59cc521163aa [2021-10-13 07:45:15,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:45:15,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:45:15,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:45:15,993 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:45:15,994 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:45:15,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2021-10-13 07:45:16,082 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/data/23b73e33f/f9e45f950a7e41339dbdaade147f3f75/FLAGa44a6cfeb [2021-10-13 07:45:16,680 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:45:16,681 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2021-10-13 07:45:16,699 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/data/23b73e33f/f9e45f950a7e41339dbdaade147f3f75/FLAGa44a6cfeb [2021-10-13 07:45:16,941 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/data/23b73e33f/f9e45f950a7e41339dbdaade147f3f75 [2021-10-13 07:45:16,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:45:16,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:45:16,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:45:16,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:45:16,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:45:16,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:45:16" (1/1) ... [2021-10-13 07:45:16,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a82477f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:16, skipping insertion in model container [2021-10-13 07:45:16,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:45:16" (1/1) ... [2021-10-13 07:45:16,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:45:17,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:45:17,305 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_ef72ad6c-2c75-42c7-9df0-8497f21ca665/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[15798,15811] [2021-10-13 07:45:17,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:45:17,335 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) [2021-10-13 07:45:17,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@63a254e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:17, skipping insertion in model container [2021-10-13 07:45:17,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:45:17,336 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 07:45:17,338 INFO L168 Benchmark]: Toolchain (without parser) took 392.20 ms. Allocated memory is still 107.0 MB. Free memory was 71.7 MB in the beginning and 79.4 MB in the end (delta: -7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:45:17,339 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory was 53.1 MB in the beginning and 53.0 MB in the end (delta: 29.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:45:17,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.44 ms. Allocated memory is still 107.0 MB. Free memory was 71.5 MB in the beginning and 79.4 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:45:17,343 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory was 53.1 MB in the beginning and 53.0 MB in the end (delta: 29.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 389.44 ms. Allocated memory is still 107.0 MB. Free memory was 71.5 MB in the beginning and 79.4 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 429]: 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-4e77c04 [2021-10-13 07:45:19,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:45:19,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:45:19,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:45:19,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:45:19,560 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:45:19,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:45:19,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:45:19,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:45:19,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:45:19,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:45:19,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:45:19,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:45:19,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:45:19,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:45:19,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:45:19,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:45:19,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:45:19,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:45:19,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:45:19,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:45:19,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:45:19,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:45:19,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:45:19,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:45:19,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:45:19,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:45:19,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:45:19,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:45:19,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:45:19,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:45:19,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:45:19,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:45:19,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:45:19,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:45:19,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:45:19,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:45:19,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:45:19,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:45:19,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:45:19,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:45:19,633 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:45:19,680 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:45:19,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:45:19,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:45:19,682 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:45:19,682 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:45:19,682 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:45:19,683 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:45:19,683 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:45:19,683 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:45:19,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:45:19,686 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:45:19,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:45:19,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:45:19,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:45:19,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:45:19,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:45:19,687 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:45:19,687 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:45:19,688 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:45:19,688 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:45:19,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:45:19,688 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:45:19,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:45:19,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:45:19,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:45:19,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:45:19,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:45:19,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:45:19,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:45:19,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:45:19,690 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:45:19,691 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:45:19,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:45:19,691 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:45:19,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:45:19,692 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_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf24413c974632111c219883460f59cc521163aa [2021-10-13 07:45:20,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:45:20,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:45:20,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:45:20,078 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:45:20,079 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:45:20,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2021-10-13 07:45:20,156 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/data/f765207fb/69cdde374b5040ddaf99a6ed4bff3c18/FLAG112f09ad3 [2021-10-13 07:45:20,766 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:45:20,778 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2021-10-13 07:45:20,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/data/f765207fb/69cdde374b5040ddaf99a6ed4bff3c18/FLAG112f09ad3 [2021-10-13 07:45:21,021 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/data/f765207fb/69cdde374b5040ddaf99a6ed4bff3c18 [2021-10-13 07:45:21,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:45:21,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:45:21,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:45:21,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:45:21,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:45:21,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:45:21" (1/1) ... [2021-10-13 07:45:21,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92eb90b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:21, skipping insertion in model container [2021-10-13 07:45:21,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:45:21" (1/1) ... [2021-10-13 07:45:21,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:45:21,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:45:21,519 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_ef72ad6c-2c75-42c7-9df0-8497f21ca665/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[15798,15811] [2021-10-13 07:45:21,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:45:21,586 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 07:45:21,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:45:21,692 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_ef72ad6c-2c75-42c7-9df0-8497f21ca665/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[15798,15811] [2021-10-13 07:45:21,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:45:21,716 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:45:21,761 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_ef72ad6c-2c75-42c7-9df0-8497f21ca665/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[15798,15811] [2021-10-13 07:45:21,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:45:21,791 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:45:21,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:21 WrapperNode [2021-10-13 07:45:21,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:45:21,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:45:21,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:45:21,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:45:21,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:21" (1/1) ... [2021-10-13 07:45:21,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:21" (1/1) ... [2021-10-13 07:45:21,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:45:21,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:45:21,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:45:21,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:45:21,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:21" (1/1) ... [2021-10-13 07:45:21,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:21" (1/1) ... [2021-10-13 07:45:21,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:21" (1/1) ... [2021-10-13 07:45:21,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:21" (1/1) ... [2021-10-13 07:45:21,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:21" (1/1) ... [2021-10-13 07:45:21,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:21" (1/1) ... [2021-10-13 07:45:21,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:21" (1/1) ... [2021-10-13 07:45:21,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:45:21,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:45:21,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:45:21,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:45:21,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:21" (1/1) ... [2021-10-13 07:45:21,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:45:21,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:45:21,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:45:22,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:45:22,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:45:22,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:45:22,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:45:22,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:45:24,561 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:45:24,561 INFO L299 CfgBuilder]: Removed 204 assume(true) statements. [2021-10-13 07:45:24,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:45:24 BoogieIcfgContainer [2021-10-13 07:45:24,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:45:24,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:45:24,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:45:24,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:45:24,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:45:21" (1/3) ... [2021-10-13 07:45:24,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27381fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:45:24, skipping insertion in model container [2021-10-13 07:45:24,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:21" (2/3) ... [2021-10-13 07:45:24,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27381fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:45:24, skipping insertion in model container [2021-10-13 07:45:24,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:45:24" (3/3) ... [2021-10-13 07:45:24,573 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2021-10-13 07:45:24,579 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:45:24,580 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 07:45:24,642 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:45:24,649 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 [2021-10-13 07:45:24,649 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 07:45:24,669 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 142 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:45:24,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 07:45:24,676 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:45:24,677 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:45:24,678 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:45:24,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:45:24,684 INFO L82 PathProgramCache]: Analyzing trace with hash -101624794, now seen corresponding path program 1 times [2021-10-13 07:45:24,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:45:24,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417557051] [2021-10-13 07:45:24,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:45:24,703 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:45:24,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:45:24,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:45:24,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:45:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:45:24,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 07:45:24,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:45:25,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:45:25,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:45:25,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:45:25,130 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:45:25,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417557051] [2021-10-13 07:45:25,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417557051] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:45:25,131 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:45:25,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:45:25,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986598758] [2021-10-13 07:45:25,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:45:25,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:45:25,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:45:25,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:45:25,160 INFO L87 Difference]: Start difference. First operand has 143 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 142 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2021-10-13 07:45:25,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:45:25,220 INFO L93 Difference]: Finished difference Result 280 states and 419 transitions. [2021-10-13 07:45:25,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:45:25,222 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2021-10-13 07:45:25,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:45:25,247 INFO L225 Difference]: With dead ends: 280 [2021-10-13 07:45:25,248 INFO L226 Difference]: Without dead ends: 139 [2021-10-13 07:45:25,252 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:45:25,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-10-13 07:45:25,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-10-13 07:45:25,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 136 states have (on average 1.4779411764705883) internal successors, (201), 138 states have internal predecessors, (201), 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) [2021-10-13 07:45:25,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2021-10-13 07:45:25,309 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2021-10-13 07:45:25,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:45:25,310 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2021-10-13 07:45:25,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2021-10-13 07:45:25,310 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2021-10-13 07:45:25,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 07:45:25,312 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:45:25,313 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:45:25,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:45:25,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:45:25,526 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:45:25,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:45:25,528 INFO L82 PathProgramCache]: Analyzing trace with hash 524834626, now seen corresponding path program 1 times [2021-10-13 07:45:25,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:45:25,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133710614] [2021-10-13 07:45:25,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:45:25,529 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:45:25,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:45:25,530 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:45:25,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:45:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:45:25,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:45:25,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:45:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:45:25,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:45:25,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:45:25,912 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:45:25,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133710614] [2021-10-13 07:45:25,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133710614] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:45:25,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:45:25,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:45:25,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555232118] [2021-10-13 07:45:25,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:45:25,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:45:25,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:45:25,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:45:25,921 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-13 07:45:25,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:45:25,955 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2021-10-13 07:45:25,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:45:25,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 19 [2021-10-13 07:45:25,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:45:25,958 INFO L225 Difference]: With dead ends: 139 [2021-10-13 07:45:25,960 INFO L226 Difference]: Without dead ends: 57 [2021-10-13 07:45:25,961 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:45:25,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-13 07:45:25,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-13 07:45:25,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 56 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:45:25,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2021-10-13 07:45:25,972 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2021-10-13 07:45:25,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:45:25,972 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2021-10-13 07:45:25,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-10-13 07:45:25,973 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2021-10-13 07:45:25,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 07:45:25,975 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:45:25,979 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] [2021-10-13 07:45:25,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:45:26,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:45:26,196 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:45:26,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:45:26,197 INFO L82 PathProgramCache]: Analyzing trace with hash 691260675, now seen corresponding path program 1 times [2021-10-13 07:45:26,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:45:26,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440417718] [2021-10-13 07:45:26,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:45:26,198 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:45:26,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:45:26,201 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:45:26,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:45:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:45:26,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:45:26,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:45:26,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:45:26,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:45:26,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:45:26,598 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:45:26,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440417718] [2021-10-13 07:45:26,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440417718] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:45:26,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:45:26,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:45:26,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364547193] [2021-10-13 07:45:26,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:45:26,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:45:26,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:45:26,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:45:26,601 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-13 07:45:26,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:45:26,657 INFO L93 Difference]: Finished difference Result 184 states and 271 transitions. [2021-10-13 07:45:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:45:26,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 24 [2021-10-13 07:45:26,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:45:26,660 INFO L225 Difference]: With dead ends: 184 [2021-10-13 07:45:26,661 INFO L226 Difference]: Without dead ends: 133 [2021-10-13 07:45:26,662 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:45:26,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-13 07:45:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 78. [2021-10-13 07:45:26,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4805194805194806) internal successors, (114), 77 states have internal predecessors, (114), 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) [2021-10-13 07:45:26,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2021-10-13 07:45:26,687 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24 [2021-10-13 07:45:26,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:45:26,688 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2021-10-13 07:45:26,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-13 07:45:26,689 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2021-10-13 07:45:26,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 07:45:26,692 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:45:26,692 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] [2021-10-13 07:45:26,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:45:26,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:45:26,901 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:45:26,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:45:26,902 INFO L82 PathProgramCache]: Analyzing trace with hash 2134675258, now seen corresponding path program 1 times [2021-10-13 07:45:26,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:45:26,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278897128] [2021-10-13 07:45:26,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:45:26,904 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:45:26,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:45:26,906 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:45:26,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:45:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:45:27,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:45:27,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:45:27,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:45:27,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:45:27,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:45:27,323 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:45:27,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278897128] [2021-10-13 07:45:27,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278897128] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:45:27,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:45:27,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:45:27,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067913570] [2021-10-13 07:45:27,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:45:27,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:45:27,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:45:27,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:45:27,327 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-13 07:45:27,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:45:27,401 INFO L93 Difference]: Finished difference Result 173 states and 255 transitions. [2021-10-13 07:45:27,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:45:27,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-10-13 07:45:27,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:45:27,403 INFO L225 Difference]: With dead ends: 173 [2021-10-13 07:45:27,404 INFO L226 Difference]: Without dead ends: 101 [2021-10-13 07:45:27,404 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:45:27,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-13 07:45:27,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2021-10-13 07:45:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.4387755102040816) internal successors, (141), 98 states have internal predecessors, (141), 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) [2021-10-13 07:45:27,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2021-10-13 07:45:27,426 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26 [2021-10-13 07:45:27,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:45:27,427 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2021-10-13 07:45:27,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-10-13 07:45:27,427 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2021-10-13 07:45:27,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 07:45:27,433 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:45:27,433 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] [2021-10-13 07:45:27,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:45:27,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:45:27,646 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:45:27,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:45:27,647 INFO L82 PathProgramCache]: Analyzing trace with hash 127920088, now seen corresponding path program 1 times [2021-10-13 07:45:27,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:45:27,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654856655] [2021-10-13 07:45:27,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:45:27,648 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:45:27,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:45:27,649 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:45:27,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:45:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:45:27,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:45:27,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:45:27,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:45:27,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:45:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:45:28,098 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:45:28,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654856655] [2021-10-13 07:45:28,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654856655] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:45:28,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:45:28,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 07:45:28,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991897458] [2021-10-13 07:45:28,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:45:28,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:45:28,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:45:28,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:45:28,103 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-10-13 07:45:28,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:45:28,586 INFO L93 Difference]: Finished difference Result 1099 states and 1606 transitions. [2021-10-13 07:45:28,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 07:45:28,587 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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 27 [2021-10-13 07:45:28,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:45:28,593 INFO L225 Difference]: With dead ends: 1099 [2021-10-13 07:45:28,594 INFO L226 Difference]: Without dead ends: 1006 [2021-10-13 07:45:28,595 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 144.9ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-13 07:45:28,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2021-10-13 07:45:28,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 251. [2021-10-13 07:45:28,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.412) internal successors, (353), 250 states have internal predecessors, (353), 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) [2021-10-13 07:45:28,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 353 transitions. [2021-10-13 07:45:28,663 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 353 transitions. Word has length 27 [2021-10-13 07:45:28,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:45:28,664 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 353 transitions. [2021-10-13 07:45:28,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-10-13 07:45:28,665 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 353 transitions. [2021-10-13 07:45:28,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 07:45:28,668 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:45:28,668 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] [2021-10-13 07:45:28,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:45:28,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:45:28,885 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:45:28,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:45:28,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1572343654, now seen corresponding path program 1 times [2021-10-13 07:45:28,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:45:28,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [711319936] [2021-10-13 07:45:28,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:45:28,886 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:45:28,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:45:28,889 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:45:28,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 07:45:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:45:30,490 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:45:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:45:32,130 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-13 07:45:32,131 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:45:32,132 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:45:32,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:45:32,146 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:45:32,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:45:32,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:45:32,354 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:45:32,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:45:32 BoogieIcfgContainer [2021-10-13 07:45:32,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:45:32,515 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:45:32,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:45:32,516 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:45:32,517 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:45:24" (3/4) ... [2021-10-13 07:45:32,519 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 07:45:32,640 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:45:32,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:45:32,642 INFO L168 Benchmark]: Toolchain (without parser) took 11609.72 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 48.1 MB in the beginning and 29.6 MB in the end (delta: 18.4 MB). Peak memory consumption was 39.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:45:32,643 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 69.2 MB. Free memory is still 49.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:45:32,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.66 ms. Allocated memory is still 69.2 MB. Free memory was 48.0 MB in the beginning and 35.7 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:45:32,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.52 ms. Allocated memory is still 69.2 MB. Free memory was 35.5 MB in the beginning and 50.4 MB in the end (delta: -15.0 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:45:32,645 INFO L168 Benchmark]: Boogie Preprocessor took 64.70 ms. Allocated memory is still 69.2 MB. Free memory was 50.4 MB in the beginning and 47.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:45:32,645 INFO L168 Benchmark]: RCFGBuilder took 2611.79 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 47.4 MB in the beginning and 61.1 MB in the end (delta: -13.7 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:45:32,646 INFO L168 Benchmark]: TraceAbstraction took 7948.60 ms. Allocated memory is still 90.2 MB. Free memory was 60.2 MB in the beginning and 41.5 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:45:32,646 INFO L168 Benchmark]: Witness Printer took 125.15 ms. Allocated memory is still 90.2 MB. Free memory was 41.5 MB in the beginning and 29.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:45:32,648 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 69.2 MB. Free memory is still 49.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 758.66 ms. Allocated memory is still 69.2 MB. Free memory was 48.0 MB in the beginning and 35.7 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.52 ms. Allocated memory is still 69.2 MB. Free memory was 35.5 MB in the beginning and 50.4 MB in the end (delta: -15.0 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.70 ms. Allocated memory is still 69.2 MB. Free memory was 50.4 MB in the beginning and 47.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2611.79 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 47.4 MB in the beginning and 61.1 MB in the end (delta: -13.7 MB). Peak memory consumption was 32.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7948.60 ms. Allocated memory is still 90.2 MB. Free memory was 60.2 MB in the beginning and 41.5 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * Witness Printer took 125.15 ms. Allocated memory is still 90.2 MB. Free memory was 41.5 MB in the beginning and 29.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 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 - CounterExampleResult [Line: 771]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L126] int pumpRunning = 0; [L127] int systemActive = 1; [L570] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; [L917] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L990] int retValue_acc ; [L991] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L805] int retValue_acc ; [L808] retValue_acc = 1 [L809] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L997] tmp = valid_product() [L999] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] tmp = __VERIFIER_nondet_int() [L68] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel < 2 [L833] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND FALSE !(\read(tmp___2)) [L94] tmp___1 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L345] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L352] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L134] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L141] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L368] int tmp ; [L369] int tmp___0 ; [L370] int tmp___1 ; [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L374] tmp = isMethaneLevelCritical() [L376] COND FALSE !(\read(tmp)) [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L380] tmp___0 = getWaterLevel() [L382] COND TRUE tmp___0 == 2 [L259] int retValue_acc ; [L262] retValue_acc = pumpRunning [L263] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L384] tmp___1 = isPumpRunning() [L386] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L771] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 771]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 143 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7714.1ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 26.9ms, AutomataDifference: 789.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 578 SDtfs, 1582 SDslu, 1013 SDs, 0 SdLazy, 170 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 257.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 168.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 164.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 812 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 125.5ms SsaConstructionTime, 2059.1ms SatisfiabilityAnalysisTime, 1008.4ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 363 SizeOfPredicates, 4 NumberOfNonLiveVariables, 997 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2021-10-13 07:45:32,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef72ad6c-2c75-42c7-9df0-8497f21ca665/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...