./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cad5f4eca7a20f7ca6dddfa07fda554bac28f7be ...................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cad5f4eca7a20f7ca6dddfa07fda554bac28f7be ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-f470102 [2019-12-07 13:00:39,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:00:39,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:00:39,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:00:39,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:00:39,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:00:39,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:00:39,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:00:39,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:00:39,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:00:39,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:00:39,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:00:39,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:00:39,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:00:39,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:00:39,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:00:39,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:00:39,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:00:39,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:00:39,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:00:39,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:00:39,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:00:39,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:00:39,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:00:39,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:00:39,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:00:39,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:00:39,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:00:39,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:00:39,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:00:39,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:00:39,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:00:39,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:00:39,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:00:39,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:00:39,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:00:39,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:00:39,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:00:39,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:00:39,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:00:39,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:00:39,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 13:00:39,471 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:00:39,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:00:39,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:00:39,472 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:00:39,472 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:00:39,472 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:00:39,472 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 13:00:39,472 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:00:39,472 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:00:39,472 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 13:00:39,472 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 13:00:39,473 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:00:39,473 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 13:00:39,473 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 13:00:39,473 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 13:00:39,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:00:39,474 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:00:39,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:00:39,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:00:39,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:00:39,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:00:39,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:00:39,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:00:39,475 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:00:39,475 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:00:39,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:00:39,475 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:00:39,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:00:39,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:00:39,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:00:39,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:00:39,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:00:39,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:00:39,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:00:39,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:00:39,476 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 13:00:39,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:00:39,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:00:39,476 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:00:39,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:00:39,476 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan 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(__VERIFIER_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 -> cad5f4eca7a20f7ca6dddfa07fda554bac28f7be [2019-12-07 13:00:39,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:00:39,591 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:00:39,593 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:00:39,594 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:00:39,594 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:00:39,595 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2019-12-07 13:00:39,631 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/data/1ad17bf34/77e885d8627e4a88b7f492184e2f1435/FLAG8c95211f7 [2019-12-07 13:00:40,062 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:00:40,063 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2019-12-07 13:00:40,071 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/data/1ad17bf34/77e885d8627e4a88b7f492184e2f1435/FLAG8c95211f7 [2019-12-07 13:00:40,079 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/data/1ad17bf34/77e885d8627e4a88b7f492184e2f1435 [2019-12-07 13:00:40,081 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:00:40,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:00:40,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:00:40,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:00:40,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:00:40,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:00:40" (1/1) ... [2019-12-07 13:00:40,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581b80cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:40, skipping insertion in model container [2019-12-07 13:00:40,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:00:40" (1/1) ... [2019-12-07 13:00:40,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:00:40,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:00:40,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:00:40,338 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) [2019-12-07 13:00:40,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ba39ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:40, skipping insertion in model container [2019-12-07 13:00:40,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:00:40,339 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 13:00:40,341 INFO L168 Benchmark]: Toolchain (without parser) took 257.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -142.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:00:40,341 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:00:40,342 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -142.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:00:40,343 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 256.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -142.8 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 442]: 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 0.1.25-f470102 [2019-12-07 13:00:41,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:00:41,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:00:41,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:00:41,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:00:41,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:00:41,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:00:41,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:00:41,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:00:41,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:00:41,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:00:41,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:00:41,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:00:41,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:00:41,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:00:41,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:00:41,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:00:41,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:00:41,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:00:41,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:00:41,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:00:41,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:00:41,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:00:41,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:00:41,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:00:41,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:00:41,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:00:41,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:00:41,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:00:41,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:00:41,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:00:41,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:00:41,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:00:41,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:00:41,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:00:41,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:00:41,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:00:41,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:00:41,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:00:41,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:00:41,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:00:41,541 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 13:00:41,551 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:00:41,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:00:41,552 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:00:41,552 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:00:41,552 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:00:41,552 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:00:41,552 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:00:41,552 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:00:41,553 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:00:41,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:00:41,553 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:00:41,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:00:41,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:00:41,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:00:41,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:00:41,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:00:41,554 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:00:41,554 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 13:00:41,554 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 13:00:41,554 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:00:41,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:00:41,554 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:00:41,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:00:41,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:00:41,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:00:41,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:00:41,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:00:41,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:00:41,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:00:41,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:00:41,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:00:41,556 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 13:00:41,556 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 13:00:41,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:00:41,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:00:41,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:00:41,556 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan 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(__VERIFIER_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 -> cad5f4eca7a20f7ca6dddfa07fda554bac28f7be [2019-12-07 13:00:41,715 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:00:41,726 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:00:41,728 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:00:41,730 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:00:41,730 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:00:41,731 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2019-12-07 13:00:41,772 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/data/861f4f11b/7800d690ace746d48b5014af24acfd2a/FLAGec05c64df [2019-12-07 13:00:42,148 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:00:42,148 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2019-12-07 13:00:42,157 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/data/861f4f11b/7800d690ace746d48b5014af24acfd2a/FLAGec05c64df [2019-12-07 13:00:42,165 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/data/861f4f11b/7800d690ace746d48b5014af24acfd2a [2019-12-07 13:00:42,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:00:42,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:00:42,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:00:42,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:00:42,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:00:42,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:00:42" (1/1) ... [2019-12-07 13:00:42,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:42, skipping insertion in model container [2019-12-07 13:00:42,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:00:42" (1/1) ... [2019-12-07 13:00:42,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:00:42,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:00:42,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:00:42,422 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 13:00:42,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:00:42,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:00:42,471 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:00:42,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:00:42,532 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:00:42,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:42 WrapperNode [2019-12-07 13:00:42,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:00:42,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:00:42,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:00:42,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:00:42,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:42" (1/1) ... [2019-12-07 13:00:42,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:42" (1/1) ... [2019-12-07 13:00:42,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:00:42,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:00:42,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:00:42,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:00:42,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:42" (1/1) ... [2019-12-07 13:00:42,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:42" (1/1) ... [2019-12-07 13:00:42,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:42" (1/1) ... [2019-12-07 13:00:42,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:42" (1/1) ... [2019-12-07 13:00:42,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:42" (1/1) ... [2019-12-07 13:00:42,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:42" (1/1) ... [2019-12-07 13:00:42,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:42" (1/1) ... [2019-12-07 13:00:42,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:00:42,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:00:42,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:00:42,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:00:42,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:00:42,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:00:42,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 13:00:42,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:00:42,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:00:43,096 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:00:43,096 INFO L287 CfgBuilder]: Removed 100 assume(true) statements. [2019-12-07 13:00:43,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:00:43 BoogieIcfgContainer [2019-12-07 13:00:43,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:00:43,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:00:43,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:00:43,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:00:43,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:00:42" (1/3) ... [2019-12-07 13:00:43,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3761daf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:00:43, skipping insertion in model container [2019-12-07 13:00:43,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:00:42" (2/3) ... [2019-12-07 13:00:43,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3761daf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:00:43, skipping insertion in model container [2019-12-07 13:00:43,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:00:43" (3/3) ... [2019-12-07 13:00:43,102 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2019-12-07 13:00:43,109 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:00:43,115 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 13:00:43,123 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 13:00:43,139 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:00:43,139 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:00:43,139 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:00:43,139 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:00:43,140 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:00:43,140 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:00:43,140 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:00:43,140 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:00:43,151 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2019-12-07 13:00:43,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 13:00:43,155 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:00:43,155 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:43,156 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:00:43,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:43,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1355288485, now seen corresponding path program 1 times [2019-12-07 13:00:43,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:00:43,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [969608049] [2019-12-07 13:00:43,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 13:00:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:43,311 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 13:00:43,315 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:00:43,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:00:43,326 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:00:43,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:00:43,330 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [969608049] [2019-12-07 13:00:43,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:00:43,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 13:00:43,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408216635] [2019-12-07 13:00:43,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:00:43,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:00:43,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:00:43,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:00:43,346 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2019-12-07 13:00:43,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:00:43,368 INFO L93 Difference]: Finished difference Result 154 states and 233 transitions. [2019-12-07 13:00:43,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:00:43,369 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 13:00:43,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:00:43,379 INFO L225 Difference]: With dead ends: 154 [2019-12-07 13:00:43,380 INFO L226 Difference]: Without dead ends: 76 [2019-12-07 13:00:43,383 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:00:43,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-12-07 13:00:43,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-12-07 13:00:43,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-12-07 13:00:43,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2019-12-07 13:00:43,414 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2019-12-07 13:00:43,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:00:43,414 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2019-12-07 13:00:43,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:00:43,414 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2019-12-07 13:00:43,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 13:00:43,415 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:00:43,415 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:43,616 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 13:00:43,617 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:00:43,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:43,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1892921914, now seen corresponding path program 1 times [2019-12-07 13:00:43,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:00:43,620 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114964531] [2019-12-07 13:00:43,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 13:00:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:43,798 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:00:43,800 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:00:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:00:43,814 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:00:43,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:00:43,821 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114964531] [2019-12-07 13:00:43,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:00:43,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 13:00:43,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075527754] [2019-12-07 13:00:43,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:00:43,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:00:43,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:00:43,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:00:43,824 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 4 states. [2019-12-07 13:00:43,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:00:43,833 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2019-12-07 13:00:43,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:00:43,834 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 13:00:43,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:00:43,835 INFO L225 Difference]: With dead ends: 76 [2019-12-07 13:00:43,835 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 13:00:43,835 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:00:43,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 13:00:43,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 13:00:43,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 13:00:43,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2019-12-07 13:00:43,840 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2019-12-07 13:00:43,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:00:43,840 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2019-12-07 13:00:43,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:00:43,840 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2019-12-07 13:00:43,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 13:00:43,841 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:00:43,841 INFO L410 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] [2019-12-07 13:00:44,041 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 13:00:44,042 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:00:44,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:44,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1160602350, now seen corresponding path program 1 times [2019-12-07 13:00:44,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:00:44,044 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882420824] [2019-12-07 13:00:44,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 13:00:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:44,159 INFO L264 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:00:44,160 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:00:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:00:44,169 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:00:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:00:44,176 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882420824] [2019-12-07 13:00:44,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:00:44,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 13:00:44,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717571838] [2019-12-07 13:00:44,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:00:44,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:00:44,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:00:44,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:00:44,178 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 4 states. [2019-12-07 13:00:44,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:00:44,200 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2019-12-07 13:00:44,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:00:44,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 13:00:44,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:00:44,202 INFO L225 Difference]: With dead ends: 119 [2019-12-07 13:00:44,202 INFO L226 Difference]: Without dead ends: 89 [2019-12-07 13:00:44,203 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:00:44,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-12-07 13:00:44,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 55. [2019-12-07 13:00:44,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-12-07 13:00:44,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2019-12-07 13:00:44,214 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 22 [2019-12-07 13:00:44,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:00:44,214 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2019-12-07 13:00:44,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:00:44,214 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2019-12-07 13:00:44,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 13:00:44,215 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:00:44,215 INFO L410 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] [2019-12-07 13:00:44,416 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 13:00:44,416 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:00:44,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:44,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1572373846, now seen corresponding path program 1 times [2019-12-07 13:00:44,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:00:44,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1620982393] [2019-12-07 13:00:44,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 13:00:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:44,571 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:00:44,572 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:00:44,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:00:44,578 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:00:44,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:00:44,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1620982393] [2019-12-07 13:00:44,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:00:44,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 13:00:44,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665766012] [2019-12-07 13:00:44,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:00:44,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:00:44,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:00:44,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:00:44,582 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand 3 states. [2019-12-07 13:00:44,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:00:44,630 INFO L93 Difference]: Finished difference Result 125 states and 184 transitions. [2019-12-07 13:00:44,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:00:44,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-07 13:00:44,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:00:44,632 INFO L225 Difference]: With dead ends: 125 [2019-12-07 13:00:44,632 INFO L226 Difference]: Without dead ends: 76 [2019-12-07 13:00:44,632 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:00:44,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-12-07 13:00:44,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2019-12-07 13:00:44,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-12-07 13:00:44,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2019-12-07 13:00:44,640 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 23 [2019-12-07 13:00:44,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:00:44,640 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2019-12-07 13:00:44,640 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:00:44,640 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2019-12-07 13:00:44,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 13:00:44,641 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:00:44,641 INFO L410 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] [2019-12-07 13:00:44,842 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 13:00:44,842 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:00:44,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:44,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1956458727, now seen corresponding path program 1 times [2019-12-07 13:00:44,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:00:44,845 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600814280] [2019-12-07 13:00:44,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 13:00:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:45,004 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:00:45,005 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:00:45,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:00:45,020 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:00:45,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:00:45,045 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600814280] [2019-12-07 13:00:45,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:00:45,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 13:00:45,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633947965] [2019-12-07 13:00:45,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 13:00:45,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:00:45,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 13:00:45,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 13:00:45,047 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 8 states. [2019-12-07 13:00:45,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:00:45,237 INFO L93 Difference]: Finished difference Result 507 states and 746 transitions. [2019-12-07 13:00:45,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 13:00:45,238 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-12-07 13:00:45,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:00:45,241 INFO L225 Difference]: With dead ends: 507 [2019-12-07 13:00:45,241 INFO L226 Difference]: Without dead ends: 439 [2019-12-07 13:00:45,242 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-12-07 13:00:45,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2019-12-07 13:00:45,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 189. [2019-12-07 13:00:45,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-12-07 13:00:45,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 263 transitions. [2019-12-07 13:00:45,263 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 263 transitions. Word has length 25 [2019-12-07 13:00:45,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:00:45,264 INFO L462 AbstractCegarLoop]: Abstraction has 189 states and 263 transitions. [2019-12-07 13:00:45,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 13:00:45,264 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 263 transitions. [2019-12-07 13:00:45,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-12-07 13:00:45,266 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:00:45,266 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:45,466 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 13:00:45,468 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:00:45,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:45,469 INFO L82 PathProgramCache]: Analyzing trace with hash -792985208, now seen corresponding path program 1 times [2019-12-07 13:00:45,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:00:45,471 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927903922] [2019-12-07 13:00:45,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 13:00:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:45,705 INFO L264 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 13:00:45,707 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:00:45,719 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:00:45,720 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:00:45,755 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:00:45,755 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927903922] [2019-12-07 13:00:45,755 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1995992775] [2019-12-07 13:00:45,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 13:00:45,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:45,845 INFO L264 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:00:45,847 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:00:45,870 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-12-07 13:00:45,871 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:00:45,873 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-12-07 13:00:45,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:00:45,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 9 [2019-12-07 13:00:45,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966855398] [2019-12-07 13:00:45,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:00:45,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:00:45,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:00:45,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 13:00:45,874 INFO L87 Difference]: Start difference. First operand 189 states and 263 transitions. Second operand 5 states. [2019-12-07 13:00:46,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:00:46,024 INFO L93 Difference]: Finished difference Result 429 states and 608 transitions. [2019-12-07 13:00:46,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 13:00:46,024 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2019-12-07 13:00:46,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:00:46,026 INFO L225 Difference]: With dead ends: 429 [2019-12-07 13:00:46,026 INFO L226 Difference]: Without dead ends: 427 [2019-12-07 13:00:46,027 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-12-07 13:00:46,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2019-12-07 13:00:46,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 189. [2019-12-07 13:00:46,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-12-07 13:00:46,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 261 transitions. [2019-12-07 13:00:46,045 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 261 transitions. Word has length 40 [2019-12-07 13:00:46,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:00:46,045 INFO L462 AbstractCegarLoop]: Abstraction has 189 states and 261 transitions. [2019-12-07 13:00:46,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:00:46,045 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 261 transitions. [2019-12-07 13:00:46,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-12-07 13:00:46,047 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:00:46,047 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:46,451 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 13:00:46,452 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:00:46,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:46,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1758708758, now seen corresponding path program 1 times [2019-12-07 13:00:46,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:00:46,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165167933] [2019-12-07 13:00:46,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 13:00:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:46,593 INFO L264 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 13:00:46,595 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:00:46,608 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 13:00:46,608 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:00:46,610 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 13:00:46,611 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165167933] [2019-12-07 13:00:46,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:00:46,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 13:00:46,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614365254] [2019-12-07 13:00:46,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:00:46,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:00:46,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:00:46,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:00:46,612 INFO L87 Difference]: Start difference. First operand 189 states and 261 transitions. Second operand 5 states. [2019-12-07 13:00:46,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:00:46,666 INFO L93 Difference]: Finished difference Result 565 states and 778 transitions. [2019-12-07 13:00:46,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 13:00:46,667 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2019-12-07 13:00:46,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:00:46,669 INFO L225 Difference]: With dead ends: 565 [2019-12-07 13:00:46,669 INFO L226 Difference]: Without dead ends: 382 [2019-12-07 13:00:46,671 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 13:00:46,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2019-12-07 13:00:46,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 198. [2019-12-07 13:00:46,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-12-07 13:00:46,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 270 transitions. [2019-12-07 13:00:46,686 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 270 transitions. Word has length 44 [2019-12-07 13:00:46,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:00:46,686 INFO L462 AbstractCegarLoop]: Abstraction has 198 states and 270 transitions. [2019-12-07 13:00:46,686 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:00:46,687 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 270 transitions. [2019-12-07 13:00:46,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-12-07 13:00:46,688 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:00:46,688 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:46,888 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 13:00:46,889 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:00:46,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:46,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1899257368, now seen corresponding path program 1 times [2019-12-07 13:00:46,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:00:46,890 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856142618] [2019-12-07 13:00:46,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 13:00:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:47,018 INFO L264 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 13:00:47,019 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:00:47,027 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 13:00:47,027 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:00:47,038 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 13:00:47,038 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856142618] [2019-12-07 13:00:47,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:00:47,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 13:00:47,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605294542] [2019-12-07 13:00:47,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 13:00:47,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:00:47,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 13:00:47,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:00:47,039 INFO L87 Difference]: Start difference. First operand 198 states and 270 transitions. Second operand 6 states. [2019-12-07 13:00:47,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:00:47,076 INFO L93 Difference]: Finished difference Result 530 states and 725 transitions. [2019-12-07 13:00:47,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:00:47,077 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2019-12-07 13:00:47,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:00:47,078 INFO L225 Difference]: With dead ends: 530 [2019-12-07 13:00:47,078 INFO L226 Difference]: Without dead ends: 338 [2019-12-07 13:00:47,079 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 13:00:47,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2019-12-07 13:00:47,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 177. [2019-12-07 13:00:47,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2019-12-07 13:00:47,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 238 transitions. [2019-12-07 13:00:47,091 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 238 transitions. Word has length 44 [2019-12-07 13:00:47,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:00:47,092 INFO L462 AbstractCegarLoop]: Abstraction has 177 states and 238 transitions. [2019-12-07 13:00:47,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 13:00:47,092 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 238 transitions. [2019-12-07 13:00:47,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-07 13:00:47,092 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:00:47,093 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:47,293 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 13:00:47,294 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:00:47,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:47,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1942803224, now seen corresponding path program 1 times [2019-12-07 13:00:47,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:00:47,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251898290] [2019-12-07 13:00:47,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 13:00:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:47,448 INFO L264 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:00:47,449 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:00:47,467 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 13:00:47,467 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:00:47,501 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 13:00:47,501 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251898290] [2019-12-07 13:00:47,501 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [596515751] [2019-12-07 13:00:47,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 13:00:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:47,595 INFO L264 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:00:47,596 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:00:47,601 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 13:00:47,601 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:00:47,607 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 13:00:47,607 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693016560] [2019-12-07 13:00:47,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:00:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:00:47,742 INFO L264 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 13:00:47,744 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:00:47,753 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 13:00:47,754 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:00:47,758 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 13:00:47,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2019-12-07 13:00:47,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2019-12-07 13:00:47,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83414543] [2019-12-07 13:00:47,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 13:00:47,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 13:00:47,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 13:00:47,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 13:00:47,759 INFO L87 Difference]: Start difference. First operand 177 states and 238 transitions. Second operand 10 states. [2019-12-07 13:00:48,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:00:48,313 INFO L93 Difference]: Finished difference Result 1042 states and 1455 transitions. [2019-12-07 13:00:48,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 13:00:48,313 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2019-12-07 13:00:48,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:00:48,317 INFO L225 Difference]: With dead ends: 1042 [2019-12-07 13:00:48,317 INFO L226 Difference]: Without dead ends: 912 [2019-12-07 13:00:48,318 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 255 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-12-07 13:00:48,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2019-12-07 13:00:48,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 294. [2019-12-07 13:00:48,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2019-12-07 13:00:48,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 402 transitions. [2019-12-07 13:00:48,348 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 402 transitions. Word has length 45 [2019-12-07 13:00:48,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:00:48,349 INFO L462 AbstractCegarLoop]: Abstraction has 294 states and 402 transitions. [2019-12-07 13:00:48,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 13:00:48,349 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 402 transitions. [2019-12-07 13:00:48,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-12-07 13:00:48,349 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:00:48,349 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:00:48,950 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 mathsat -unsat_core_generation=3 [2019-12-07 13:00:48,952 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:00:48,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:00:48,952 INFO L82 PathProgramCache]: Analyzing trace with hash 511998341, now seen corresponding path program 2 times [2019-12-07 13:00:48,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 13:00:48,954 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658597009] [2019-12-07 13:00:48,954 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2019-12-07 13:00:49,749 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 13:00:49,749 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 13:00:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:00:50,560 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 13:00:50,561 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:00:50,761 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2019-12-07 13:00:50,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:00:50 BoogieIcfgContainer [2019-12-07 13:00:50,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:00:50,880 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:00:50,880 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:00:50,881 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:00:50,881 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:00:43" (3/4) ... [2019-12-07 13:00:50,882 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 13:00:50,953 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_44c5c9af-6143-4241-8ae4-05ef8e41200e/bin/utaipan/witness.graphml [2019-12-07 13:00:50,953 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:00:50,954 INFO L168 Benchmark]: Toolchain (without parser) took 8785.87 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 319.3 MB). Free memory was 952.4 MB in the beginning and 1.2 GB in the end (delta: -248.0 MB). Peak memory consumption was 71.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:00:50,954 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:00:50,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:00:50,955 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:00:50,955 INFO L168 Benchmark]: Boogie Preprocessor took 28.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:00:50,955 INFO L168 Benchmark]: RCFGBuilder took 491.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:00:50,955 INFO L168 Benchmark]: TraceAbstraction took 7782.27 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -193.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:00:50,956 INFO L168 Benchmark]: Witness Printer took 72.55 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:00:50,957 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 364.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 491.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7782.27 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -193.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 72.55 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 784]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L148] int pumpRunning = 0; [L149] int systemActive = 1; [L315] int cleanupTimeShifts = 4; [L583] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L824] int waterLevel = 1; [L825] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L391] int retValue_acc ; [L392] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L815] int retValue_acc ; [L818] retValue_acc = 1 [L819] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L398] tmp = valid_product() [L400] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L842] COND TRUE waterLevel < 2 [L843] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L155] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] COND TRUE \read(systemActive) [L184] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L187] COND TRUE ! pumpRunning [L281] int retValue_acc ; [L282] int tmp ; [L283] int tmp___0 ; [L904] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L907] COND FALSE !(waterLevel < 2) [L911] retValue_acc = 0 [L912] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L287] tmp = isHighWaterSensorDry() [L289] COND FALSE !(\read(tmp)) [L292] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L294] retValue_acc = tmp___0 [L295] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] tmp = isHighWaterLevel() [L191] COND TRUE \read(tmp) [L212] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L116] int tmp ; [L117] int tmp___0 ; [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L121] tmp = getWaterLevel() [L123] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L155] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L830] COND TRUE waterLevel > 0 [L831] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L162] COND TRUE \read(systemActive) [L184] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L187] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L116] int tmp ; [L117] int tmp___0 ; [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L121] tmp = getWaterLevel() [L123] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L155] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L830] COND TRUE waterLevel > 0 [L831] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L162] COND TRUE \read(systemActive) [L184] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L187] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L116] int tmp ; [L117] int tmp___0 ; [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L121] tmp = getWaterLevel() [L123] COND TRUE tmp == 0 [L236] int retValue_acc ; [L239] retValue_acc = pumpRunning [L240] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L125] tmp___0 = isPumpRunning() [L127] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L784] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 3 error locations. Result: UNSAFE, OverallTime: 7.6s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 722 SDtfs, 1726 SDslu, 1824 SDs, 0 SdLazy, 332 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 827 GetRequests, 760 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1487 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 466 NumberOfCodeBlocks, 466 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 788 ConstructedInterpolants, 0 QuantifiedInterpolants, 74598 SizeOfPredicates, 27 NumberOfNonLiveVariables, 2373 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 24 InterpolantComputations, 16 PerfectInterpolantSequences, 132/196 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...