./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68cd1f850011693bbaeee4c1a646df481d01e204 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68cd1f850011693bbaeee4c1a646df481d01e204 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:56:15,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:56:15,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:56:15,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:56:15,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:56:15,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:56:15,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:56:15,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:56:15,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:56:15,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:56:15,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:56:15,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:56:15,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:56:15,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:56:15,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:56:15,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:56:15,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:56:15,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:56:15,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:56:15,994 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:56:15,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:56:15,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:56:16,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:56:16,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:56:16,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:56:16,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:56:16,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:56:16,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:56:16,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:56:16,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:56:16,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:56:16,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:56:16,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:56:16,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:56:16,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:56:16,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:56:16,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:56:16,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:56:16,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:56:16,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:56:16,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:56:16,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:56:16,084 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:56:16,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:56:16,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:56:16,085 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:56:16,086 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:56:16,086 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:56:16,086 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:56:16,087 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:56:16,087 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:56:16,087 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:56:16,088 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:56:16,088 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:56:16,089 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:56:16,089 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:56:16,089 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:56:16,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:56:16,090 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:56:16,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:56:16,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:56:16,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:56:16,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:56:16,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:56:16,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:56:16,092 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:56:16,092 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:56:16,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:56:16,092 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:56:16,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:56:16,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:56:16,094 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:56:16,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:56:16,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:16,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:56:16,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:56:16,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:56:16,096 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:56:16,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:56:16,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:56:16,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:56:16,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:56:16,097 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68cd1f850011693bbaeee4c1a646df481d01e204 [2020-11-22 12:56:16,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:56:16,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:56:16,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:56:16,395 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:56:16,396 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:56:16,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2020-11-22 12:56:16,460 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/data/72bcecf1f/ef21465cfacd4fe4ae623016eb55f48d/FLAGd350f7528 [2020-11-22 12:56:16,942 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:56:16,943 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2020-11-22 12:56:16,965 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/data/72bcecf1f/ef21465cfacd4fe4ae623016eb55f48d/FLAGd350f7528 [2020-11-22 12:56:17,267 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/data/72bcecf1f/ef21465cfacd4fe4ae623016eb55f48d [2020-11-22 12:56:17,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:56:17,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:56:17,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:17,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:56:17,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:56:17,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:17" (1/1) ... [2020-11-22 12:56:17,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a0990a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:17, skipping insertion in model container [2020-11-22 12:56:17,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:17" (1/1) ... [2020-11-22 12:56:17,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:56:17,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:56:17,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:17,642 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) [2020-11-22 12:56:17,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5eba2179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:17, skipping insertion in model container [2020-11-22 12:56:17,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:17,644 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 12:56:17,646 INFO L168 Benchmark]: Toolchain (without parser) took 373.90 ms. Allocated memory was 75.5 MB in the beginning and 100.7 MB in the end (delta: 25.2 MB). Free memory was 55.7 MB in the beginning and 74.2 MB in the end (delta: -18.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:17,647 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 75.5 MB. Free memory was 56.1 MB in the beginning and 56.1 MB in the end (delta: 34.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:17,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.35 ms. Allocated memory was 75.5 MB in the beginning and 100.7 MB in the end (delta: 25.2 MB). Free memory was 55.4 MB in the beginning and 74.2 MB in the end (delta: -18.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:17,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 75.5 MB. Free memory was 56.1 MB in the beginning and 56.1 MB in the end (delta: 34.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 370.35 ms. Allocated memory was 75.5 MB in the beginning and 100.7 MB in the end (delta: 25.2 MB). Free memory was 55.4 MB in the beginning and 74.2 MB in the end (delta: -18.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 747]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:56:19,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:56:19,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:56:19,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:56:19,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:56:19,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:56:19,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:56:19,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:56:19,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:56:19,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:56:19,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:56:19,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:56:19,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:56:19,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:56:19,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:56:19,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:56:19,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:56:19,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:56:19,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:56:20,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:56:20,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:56:20,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:56:20,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:56:20,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:56:20,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:56:20,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:56:20,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:56:20,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:56:20,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:56:20,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:56:20,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:56:20,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:56:20,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:56:20,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:56:20,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:56:20,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:56:20,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:56:20,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:56:20,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:56:20,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:56:20,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:56:20,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:56:20,086 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:56:20,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:56:20,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:56:20,089 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:56:20,089 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:56:20,089 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:56:20,090 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:56:20,090 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:56:20,090 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:56:20,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:56:20,092 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:56:20,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:56:20,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:56:20,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:56:20,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:56:20,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:56:20,094 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:56:20,094 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:56:20,094 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:56:20,094 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:56:20,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:56:20,095 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:56:20,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:56:20,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:56:20,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:56:20,096 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:56:20,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:56:20,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:56:20,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:56:20,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:56:20,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:56:20,097 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:56:20,097 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:56:20,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:56:20,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:56:20,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:56:20,098 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68cd1f850011693bbaeee4c1a646df481d01e204 [2020-11-22 12:56:20,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:56:20,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:56:20,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:56:20,557 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:56:20,558 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:56:20,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2020-11-22 12:56:20,636 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/data/0eff9e37f/997fe86bc5994dcb93c26542b6b6f665/FLAG50a03c849 [2020-11-22 12:56:21,271 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:56:21,272 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2020-11-22 12:56:21,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/data/0eff9e37f/997fe86bc5994dcb93c26542b6b6f665/FLAG50a03c849 [2020-11-22 12:56:21,558 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/data/0eff9e37f/997fe86bc5994dcb93c26542b6b6f665 [2020-11-22 12:56:21,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:56:21,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:56:21,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:21,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:56:21,571 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:56:21,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:21" (1/1) ... [2020-11-22 12:56:21,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c2bca0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:21, skipping insertion in model container [2020-11-22 12:56:21,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:56:21" (1/1) ... [2020-11-22 12:56:21,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:56:21,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:56:22,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:22,073 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 12:56:22,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:56:22,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:22,225 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:56:22,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:56:22,387 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:56:22,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:22 WrapperNode [2020-11-22 12:56:22,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:56:22,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:22,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:56:22,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:56:22,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:22" (1/1) ... [2020-11-22 12:56:22,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:22" (1/1) ... [2020-11-22 12:56:22,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:56:22,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:56:22,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:56:22,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:56:22,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:22" (1/1) ... [2020-11-22 12:56:22,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:22" (1/1) ... [2020-11-22 12:56:22,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:22" (1/1) ... [2020-11-22 12:56:22,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:22" (1/1) ... [2020-11-22 12:56:22,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:22" (1/1) ... [2020-11-22 12:56:22,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:22" (1/1) ... [2020-11-22 12:56:22,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:22" (1/1) ... [2020-11-22 12:56:22,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:56:22,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:56:22,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:56:22,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:56:22,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/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 [2020-11-22 12:56:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:56:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:56:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:56:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:56:26,342 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:56:26,343 INFO L298 CfgBuilder]: Removed 908 assume(true) statements. [2020-11-22 12:56:26,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:26 BoogieIcfgContainer [2020-11-22 12:56:26,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:56:26,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:56:26,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:56:26,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:56:26,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:56:21" (1/3) ... [2020-11-22 12:56:26,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2d6d5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:26, skipping insertion in model container [2020-11-22 12:56:26,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:56:22" (2/3) ... [2020-11-22 12:56:26,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2d6d5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:56:26, skipping insertion in model container [2020-11-22 12:56:26,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:26" (3/3) ... [2020-11-22 12:56:26,359 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_productSimulator.cil.c [2020-11-22 12:56:26,369 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:56:26,375 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:56:26,388 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:56:26,427 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:56:26,427 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:56:26,427 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:56:26,428 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:56:26,428 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:56:26,428 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:56:26,428 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:56:26,428 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:56:26,451 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states. [2020-11-22 12:56:26,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 12:56:26,458 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:26,459 INFO L422 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] [2020-11-22 12:56:26,459 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:26,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:26,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1768096360, now seen corresponding path program 1 times [2020-11-22 12:56:26,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:26,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962553328] [2020-11-22 12:56:26,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/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 [2020-11-22 12:56:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:26,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:56:26,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:26,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:26,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:26,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:26,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962553328] [2020-11-22 12:56:26,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:26,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:56:26,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451550507] [2020-11-22 12:56:26,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:56:26,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:26,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:56:26,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:56:26,792 INFO L87 Difference]: Start difference. First operand 477 states. Second operand 2 states. [2020-11-22 12:56:26,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:26,884 INFO L93 Difference]: Finished difference Result 937 states and 1470 transitions. [2020-11-22 12:56:26,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:56:26,885 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2020-11-22 12:56:26,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:26,912 INFO L225 Difference]: With dead ends: 937 [2020-11-22 12:56:26,912 INFO L226 Difference]: Without dead ends: 470 [2020-11-22 12:56:26,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:56:26,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-11-22 12:56:26,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2020-11-22 12:56:26,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2020-11-22 12:56:27,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 729 transitions. [2020-11-22 12:56:27,012 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 729 transitions. Word has length 25 [2020-11-22 12:56:27,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:27,013 INFO L481 AbstractCegarLoop]: Abstraction has 470 states and 729 transitions. [2020-11-22 12:56:27,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:56:27,013 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 729 transitions. [2020-11-22 12:56:27,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 12:56:27,015 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:27,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:27,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:56:27,217 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:27,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:27,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1321925676, now seen corresponding path program 1 times [2020-11-22 12:56:27,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:27,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223176310] [2020-11-22 12:56:27,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/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 [2020-11-22 12:56:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:27,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:56:27,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:27,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:27,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:27,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:27,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223176310] [2020-11-22 12:56:27,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:27,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:56:27,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416081782] [2020-11-22 12:56:27,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:56:27,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:27,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:56:27,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:56:27,598 INFO L87 Difference]: Start difference. First operand 470 states and 729 transitions. Second operand 4 states. [2020-11-22 12:56:27,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:27,627 INFO L93 Difference]: Finished difference Result 470 states and 729 transitions. [2020-11-22 12:56:27,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:56:27,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-11-22 12:56:27,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:27,630 INFO L225 Difference]: With dead ends: 470 [2020-11-22 12:56:27,630 INFO L226 Difference]: Without dead ends: 174 [2020-11-22 12:56:27,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:56:27,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-11-22 12:56:27,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-11-22 12:56:27,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-11-22 12:56:27,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 266 transitions. [2020-11-22 12:56:27,664 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 266 transitions. Word has length 26 [2020-11-22 12:56:27,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:27,664 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 266 transitions. [2020-11-22 12:56:27,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:56:27,665 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 266 transitions. [2020-11-22 12:56:27,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 12:56:27,666 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:27,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:27,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:56:27,867 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:27,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:27,868 INFO L82 PathProgramCache]: Analyzing trace with hash 2146837231, now seen corresponding path program 1 times [2020-11-22 12:56:27,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:27,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142860926] [2020-11-22 12:56:27,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/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 [2020-11-22 12:56:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:28,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:56:28,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:28,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:28,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:28,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:28,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142860926] [2020-11-22 12:56:28,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:28,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:56:28,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818943062] [2020-11-22 12:56:28,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:56:28,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:28,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:56:28,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:56:28,154 INFO L87 Difference]: Start difference. First operand 174 states and 266 transitions. Second operand 4 states. [2020-11-22 12:56:28,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:28,202 INFO L93 Difference]: Finished difference Result 520 states and 810 transitions. [2020-11-22 12:56:28,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:56:28,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-11-22 12:56:28,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:28,207 INFO L225 Difference]: With dead ends: 520 [2020-11-22 12:56:28,210 INFO L226 Difference]: Without dead ends: 360 [2020-11-22 12:56:28,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:56:28,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-11-22 12:56:28,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 196. [2020-11-22 12:56:28,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-11-22 12:56:28,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 301 transitions. [2020-11-22 12:56:28,239 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 301 transitions. Word has length 32 [2020-11-22 12:56:28,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:28,239 INFO L481 AbstractCegarLoop]: Abstraction has 196 states and 301 transitions. [2020-11-22 12:56:28,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:56:28,239 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 301 transitions. [2020-11-22 12:56:28,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-22 12:56:28,241 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:28,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:28,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:56:28,457 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:28,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:28,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1270376866, now seen corresponding path program 1 times [2020-11-22 12:56:28,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:28,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753912683] [2020-11-22 12:56:28,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/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 [2020-11-22 12:56:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:28,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:56:28,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:28,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:28,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:28,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:28,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753912683] [2020-11-22 12:56:28,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:28,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 12:56:28,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778667347] [2020-11-22 12:56:28,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:56:28,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:28,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:56:28,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:56:28,748 INFO L87 Difference]: Start difference. First operand 196 states and 301 transitions. Second operand 5 states. [2020-11-22 12:56:29,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:29,199 INFO L93 Difference]: Finished difference Result 1065 states and 1693 transitions. [2020-11-22 12:56:29,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 12:56:29,200 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-11-22 12:56:29,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:29,205 INFO L225 Difference]: With dead ends: 1065 [2020-11-22 12:56:29,205 INFO L226 Difference]: Without dead ends: 883 [2020-11-22 12:56:29,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:56:29,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2020-11-22 12:56:29,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 370. [2020-11-22 12:56:29,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-11-22 12:56:29,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 573 transitions. [2020-11-22 12:56:29,255 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 573 transitions. Word has length 35 [2020-11-22 12:56:29,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:29,255 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 573 transitions. [2020-11-22 12:56:29,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:56:29,255 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 573 transitions. [2020-11-22 12:56:29,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-22 12:56:29,265 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:29,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:29,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:56:29,482 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:29,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:29,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1380973999, now seen corresponding path program 1 times [2020-11-22 12:56:29,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:29,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038042872] [2020-11-22 12:56:29,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/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 [2020-11-22 12:56:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:29,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:56:29,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:29,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:29,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:29,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038042872] [2020-11-22 12:56:29,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:29,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:56:29,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830059676] [2020-11-22 12:56:29,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:56:29,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:29,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:56:29,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:56:29,732 INFO L87 Difference]: Start difference. First operand 370 states and 573 transitions. Second operand 5 states. [2020-11-22 12:56:30,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:30,236 INFO L93 Difference]: Finished difference Result 1551 states and 2453 transitions. [2020-11-22 12:56:30,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 12:56:30,237 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-11-22 12:56:30,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:30,245 INFO L225 Difference]: With dead ends: 1551 [2020-11-22 12:56:30,245 INFO L226 Difference]: Without dead ends: 1195 [2020-11-22 12:56:30,249 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 12:56:30,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2020-11-22 12:56:30,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 385. [2020-11-22 12:56:30,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-11-22 12:56:30,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 576 transitions. [2020-11-22 12:56:30,312 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 576 transitions. Word has length 36 [2020-11-22 12:56:30,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:30,314 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 576 transitions. [2020-11-22 12:56:30,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:56:30,314 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 576 transitions. [2020-11-22 12:56:30,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-22 12:56:30,315 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:30,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:30,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 12:56:30,529 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:30,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:30,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1093992796, now seen corresponding path program 1 times [2020-11-22 12:56:30,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:30,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640077195] [2020-11-22 12:56:30,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/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 [2020-11-22 12:56:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:30,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:56:30,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:30,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:30,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:30,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:30,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640077195] [2020-11-22 12:56:30,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:30,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 12:56:30,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96417415] [2020-11-22 12:56:30,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:56:30,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:30,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:56:30,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:56:30,772 INFO L87 Difference]: Start difference. First operand 385 states and 576 transitions. Second operand 5 states. [2020-11-22 12:56:31,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:31,119 INFO L93 Difference]: Finished difference Result 1012 states and 1506 transitions. [2020-11-22 12:56:31,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 12:56:31,120 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-11-22 12:56:31,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:31,124 INFO L225 Difference]: With dead ends: 1012 [2020-11-22 12:56:31,124 INFO L226 Difference]: Without dead ends: 641 [2020-11-22 12:56:31,127 INFO L677 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 [2020-11-22 12:56:31,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2020-11-22 12:56:31,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 433. [2020-11-22 12:56:31,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-11-22 12:56:31,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 624 transitions. [2020-11-22 12:56:31,170 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 624 transitions. Word has length 44 [2020-11-22 12:56:31,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:31,171 INFO L481 AbstractCegarLoop]: Abstraction has 433 states and 624 transitions. [2020-11-22 12:56:31,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:56:31,171 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 624 transitions. [2020-11-22 12:56:31,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-22 12:56:31,172 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:31,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:31,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 12:56:31,390 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:31,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:31,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1352158234, now seen corresponding path program 1 times [2020-11-22 12:56:31,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:31,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577910251] [2020-11-22 12:56:31,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:31,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 12:56:31,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:31,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:31,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:31,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:31,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1577910251] [2020-11-22 12:56:31,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:31,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 12:56:31,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336214695] [2020-11-22 12:56:31,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 12:56:31,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:31,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 12:56:31,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 12:56:31,662 INFO L87 Difference]: Start difference. First operand 433 states and 624 transitions. Second operand 6 states. [2020-11-22 12:56:31,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:31,910 INFO L93 Difference]: Finished difference Result 1148 states and 1642 transitions. [2020-11-22 12:56:31,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:56:31,910 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-11-22 12:56:31,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:31,915 INFO L225 Difference]: With dead ends: 1148 [2020-11-22 12:56:31,915 INFO L226 Difference]: Without dead ends: 729 [2020-11-22 12:56:31,916 INFO L677 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 [2020-11-22 12:56:31,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2020-11-22 12:56:31,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 465. [2020-11-22 12:56:31,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2020-11-22 12:56:31,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 656 transitions. [2020-11-22 12:56:31,966 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 656 transitions. Word has length 44 [2020-11-22 12:56:31,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:31,977 INFO L481 AbstractCegarLoop]: Abstraction has 465 states and 656 transitions. [2020-11-22 12:56:31,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 12:56:31,977 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 656 transitions. [2020-11-22 12:56:31,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-22 12:56:31,978 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:31,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:32,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 12:56:32,192 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:32,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:32,192 INFO L82 PathProgramCache]: Analyzing trace with hash 341040984, now seen corresponding path program 1 times [2020-11-22 12:56:32,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:32,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143442882] [2020-11-22 12:56:32,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/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 [2020-11-22 12:56:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:32,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:56:32,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:32,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:32,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:32,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143442882] [2020-11-22 12:56:32,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:32,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 12:56:32,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843721667] [2020-11-22 12:56:32,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:56:32,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:32,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:56:32,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:56:32,484 INFO L87 Difference]: Start difference. First operand 465 states and 656 transitions. Second operand 4 states. [2020-11-22 12:56:32,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:32,736 INFO L93 Difference]: Finished difference Result 1347 states and 1912 transitions. [2020-11-22 12:56:32,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:56:32,737 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-11-22 12:56:32,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:32,743 INFO L225 Difference]: With dead ends: 1347 [2020-11-22 12:56:32,743 INFO L226 Difference]: Without dead ends: 896 [2020-11-22 12:56:32,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:56:32,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2020-11-22 12:56:32,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 738. [2020-11-22 12:56:32,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 738 states. [2020-11-22 12:56:32,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1035 transitions. [2020-11-22 12:56:32,830 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1035 transitions. Word has length 44 [2020-11-22 12:56:32,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:32,831 INFO L481 AbstractCegarLoop]: Abstraction has 738 states and 1035 transitions. [2020-11-22 12:56:32,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:56:32,831 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1035 transitions. [2020-11-22 12:56:32,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-22 12:56:32,832 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:32,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:33,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 12:56:33,049 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:33,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:33,049 INFO L82 PathProgramCache]: Analyzing trace with hash 772865075, now seen corresponding path program 1 times [2020-11-22 12:56:33,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:33,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902236384] [2020-11-22 12:56:33,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/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 [2020-11-22 12:56:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:33,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:56:33,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:33,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:33,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:33,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:33,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902236384] [2020-11-22 12:56:33,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:56:33,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 12:56:33,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133307131] [2020-11-22 12:56:33,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:56:33,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:33,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:56:33,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:56:33,269 INFO L87 Difference]: Start difference. First operand 738 states and 1035 transitions. Second operand 3 states. [2020-11-22 12:56:33,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:33,429 INFO L93 Difference]: Finished difference Result 1334 states and 1867 transitions. [2020-11-22 12:56:33,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:56:33,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-11-22 12:56:33,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:33,439 INFO L225 Difference]: With dead ends: 1334 [2020-11-22 12:56:33,439 INFO L226 Difference]: Without dead ends: 1332 [2020-11-22 12:56:33,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 12:56:33,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2020-11-22 12:56:33,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 937. [2020-11-22 12:56:33,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 937 states. [2020-11-22 12:56:33,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1345 transitions. [2020-11-22 12:56:33,555 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1345 transitions. Word has length 45 [2020-11-22 12:56:33,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:33,556 INFO L481 AbstractCegarLoop]: Abstraction has 937 states and 1345 transitions. [2020-11-22 12:56:33,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:56:33,557 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1345 transitions. [2020-11-22 12:56:33,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-11-22 12:56:33,559 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:33,559 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:33,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 12:56:33,776 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:33,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:33,776 INFO L82 PathProgramCache]: Analyzing trace with hash -921794261, now seen corresponding path program 1 times [2020-11-22 12:56:33,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:33,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305322652] [2020-11-22 12:56:33,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/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 [2020-11-22 12:56:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:34,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 12:56:34,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:34,057 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-22 12:56:34,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:34,087 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-22 12:56:34,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305322652] [2020-11-22 12:56:34,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1572310695] [2020-11-22 12:56:34,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/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 [2020-11-22 12:56:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:34,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:56:34,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:34,308 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:34,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:34,332 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:34,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2020-11-22 12:56:34,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3, 3] total 7 [2020-11-22 12:56:34,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497281965] [2020-11-22 12:56:34,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 12:56:34,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:34,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 12:56:34,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:56:34,334 INFO L87 Difference]: Start difference. First operand 937 states and 1345 transitions. Second operand 3 states. [2020-11-22 12:56:36,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:36,074 INFO L93 Difference]: Finished difference Result 2060 states and 2968 transitions. [2020-11-22 12:56:36,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:56:36,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-11-22 12:56:36,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:36,081 INFO L225 Difference]: With dead ends: 2060 [2020-11-22 12:56:36,081 INFO L226 Difference]: Without dead ends: 1137 [2020-11-22 12:56:36,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:56:36,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2020-11-22 12:56:36,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1137. [2020-11-22 12:56:36,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1137 states. [2020-11-22 12:56:36,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1588 transitions. [2020-11-22 12:56:36,230 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1588 transitions. Word has length 66 [2020-11-22 12:56:36,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:36,230 INFO L481 AbstractCegarLoop]: Abstraction has 1137 states and 1588 transitions. [2020-11-22 12:56:36,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 12:56:36,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1588 transitions. [2020-11-22 12:56:36,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-11-22 12:56:36,232 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:36,233 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:36,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 mathsat -unsat_core_generation=3 [2020-11-22 12:56:36,636 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:36,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:36,637 INFO L82 PathProgramCache]: Analyzing trace with hash -2057030735, now seen corresponding path program 1 times [2020-11-22 12:56:36,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:36,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334386643] [2020-11-22 12:56:36,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:36,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 12:56:36,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:36,890 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-22 12:56:36,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:36,925 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-22 12:56:36,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334386643] [2020-11-22 12:56:36,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [165627423] [2020-11-22 12:56:36,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-11-22 12:56:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:37,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 12:56:37,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:37,274 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-22 12:56:37,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:37,288 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-22 12:56:37,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965659921] [2020-11-22 12:56:37,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 12:56:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:56:37,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:56:37,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:56:37,473 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:37,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:56:37,484 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:56:37,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2020-11-22 12:56:37,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3, 3, 3, 3] total 7 [2020-11-22 12:56:37,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634498149] [2020-11-22 12:56:37,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:56:37,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:56:37,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:56:37,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:56:37,486 INFO L87 Difference]: Start difference. First operand 1137 states and 1588 transitions. Second operand 4 states. [2020-11-22 12:56:39,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:56:39,204 INFO L93 Difference]: Finished difference Result 2864 states and 3999 transitions. [2020-11-22 12:56:39,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:56:39,205 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-11-22 12:56:39,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:56:39,216 INFO L225 Difference]: With dead ends: 2864 [2020-11-22 12:56:39,216 INFO L226 Difference]: Without dead ends: 1841 [2020-11-22 12:56:39,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:56:39,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2020-11-22 12:56:39,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1837. [2020-11-22 12:56:39,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1837 states. [2020-11-22 12:56:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 2538 transitions. [2020-11-22 12:56:39,422 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 2538 transitions. Word has length 67 [2020-11-22 12:56:39,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:56:39,427 INFO L481 AbstractCegarLoop]: Abstraction has 1837 states and 2538 transitions. [2020-11-22 12:56:39,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:56:39,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 2538 transitions. [2020-11-22 12:56:39,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-11-22 12:56:39,430 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:56:39,430 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:56:40,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3,14 cvc4 --incremental --print-success --lang smt --rewrite-divk,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 12:56:40,047 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:56:40,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:56:40,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1470224721, now seen corresponding path program 1 times [2020-11-22 12:56:40,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:56:40,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926643236] [2020-11-22 12:56:40,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-11-22 12:56:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:41,288 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:56:42,521 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:56:42,798 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:56:42,798 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:56:43,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-11-22 12:56:43,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:56:43 BoogieIcfgContainer [2020-11-22 12:56:43,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:56:43,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:56:43,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:56:43,231 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:56:43,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:56:26" (3/4) ... [2020-11-22 12:56:43,234 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:56:43,382 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ab8be997-08ab-4cc4-a684-cf600555fd61/bin/utaipan/witness.graphml [2020-11-22 12:56:43,382 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:56:43,383 INFO L168 Benchmark]: Toolchain (without parser) took 21821.07 ms. Allocated memory was 58.7 MB in the beginning and 192.9 MB in the end (delta: 134.2 MB). Free memory was 36.1 MB in the beginning and 111.2 MB in the end (delta: -75.1 MB). Peak memory consumption was 58.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:43,384 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 58.7 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:56:43,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 820.85 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 35.8 MB in the beginning and 55.2 MB in the end (delta: -19.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:43,385 INFO L168 Benchmark]: Boogie Procedure Inliner took 134.46 ms. Allocated memory is still 77.6 MB. Free memory was 55.2 MB in the beginning and 44.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:43,385 INFO L168 Benchmark]: Boogie Preprocessor took 170.42 ms. Allocated memory is still 77.6 MB. Free memory was 44.1 MB in the beginning and 36.7 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:43,385 INFO L168 Benchmark]: RCFGBuilder took 3652.76 ms. Allocated memory was 77.6 MB in the beginning and 109.1 MB in the end (delta: 31.5 MB). Free memory was 36.4 MB in the beginning and 44.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:43,386 INFO L168 Benchmark]: TraceAbstraction took 16880.25 ms. Allocated memory was 109.1 MB in the beginning and 192.9 MB in the end (delta: 83.9 MB). Free memory was 43.8 MB in the beginning and 146.8 MB in the end (delta: -103.1 MB). Peak memory consumption was 79.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:43,386 INFO L168 Benchmark]: Witness Printer took 151.06 ms. Allocated memory is still 192.9 MB. Free memory was 146.8 MB in the beginning and 111.2 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:56:43,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 58.7 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 820.85 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 35.8 MB in the beginning and 55.2 MB in the end (delta: -19.4 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 134.46 ms. Allocated memory is still 77.6 MB. Free memory was 55.2 MB in the beginning and 44.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 170.42 ms. Allocated memory is still 77.6 MB. Free memory was 44.1 MB in the beginning and 36.7 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3652.76 ms. Allocated memory was 77.6 MB in the beginning and 109.1 MB in the end (delta: 31.5 MB). Free memory was 36.4 MB in the beginning and 44.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16880.25 ms. Allocated memory was 109.1 MB in the beginning and 192.9 MB in the end (delta: 83.9 MB). Free memory was 43.8 MB in the beginning and 146.8 MB in the end (delta: -103.1 MB). Peak memory consumption was 79.4 MB. Max. memory is 16.1 GB. * Witness Printer took 151.06 ms. Allocated memory is still 192.9 MB. Free memory was 146.8 MB in the beginning and 111.2 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int __SELECTED_FEATURE_base ; [L43] int __SELECTED_FEATURE_highWaterSensor ; [L44] int __SELECTED_FEATURE_lowWaterSensor ; [L45] int __SELECTED_FEATURE_methaneQuery ; [L46] int __SELECTED_FEATURE_methaneAlarm ; [L47] int __SELECTED_FEATURE_stopCommand ; [L48] int __SELECTED_FEATURE_startCommand ; [L49] int __GUIDSL_ROOT_PRODUCTION ; [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L500] int cleanupTimeShifts = 4; [L680] int methAndRunningLastTime ; [L888] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [__GUIDSL_ROOT_PRODUCTION=0, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L579] int retValue_acc ; [L580] int tmp ; [L1125] __GUIDSL_ROOT_PRODUCTION = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1110] __SELECTED_FEATURE_base = 1 [L1096] int retValue_acc ; [L1097] int choice = __VERIFIER_nondet_int(); [L1100] retValue_acc = choice [L1101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1111] __SELECTED_FEATURE_highWaterSensor = select_one() [L1096] int retValue_acc ; [L1097] int choice = __VERIFIER_nondet_int(); [L1100] retValue_acc = choice [L1101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1112] __SELECTED_FEATURE_lowWaterSensor = select_one() [L1096] int retValue_acc ; [L1097] int choice = __VERIFIER_nondet_int(); [L1100] retValue_acc = choice [L1101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1113] __SELECTED_FEATURE_methaneQuery = select_one() [L1096] int retValue_acc ; [L1097] int choice = __VERIFIER_nondet_int(); [L1100] retValue_acc = choice [L1101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1114] __SELECTED_FEATURE_methaneAlarm = select_one() [L1096] int retValue_acc ; [L1097] int choice = __VERIFIER_nondet_int(); [L1100] retValue_acc = choice [L1101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1115] __SELECTED_FEATURE_stopCommand = select_one() [L1096] int retValue_acc ; [L1097] int choice = __VERIFIER_nondet_int(); [L1100] retValue_acc = choice [L1101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1116] __SELECTED_FEATURE_startCommand = select_one() [L1130] int retValue_acc ; [L1133] retValue_acc = __SELECTED_FEATURE_base [L1134] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L586] tmp = valid_product() [L588] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L685] methAndRunningLastTime = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L603] int splverifierCounter ; [L604] int tmp ; [L605] int tmp___0 ; [L606] int tmp___1 ; [L607] int tmp___2 ; [L610] splverifierCounter = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L612] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L614] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L620] tmp = __VERIFIER_nondet_int() [L622] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L76] COND TRUE waterLevel < 2 [L77] waterLevel = waterLevel + 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L630] tmp___0 = __VERIFIER_nondet_int() [L632] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L88] COND FALSE !(\read(methaneLevelCritical)) [L91] methaneLevelCritical = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L640] tmp___2 = __VERIFIER_nondet_int() [L642] COND FALSE !(\read(tmp___2)) [L652] tmp___1 = __VERIFIER_nondet_int() [L654] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L176] COND FALSE !(\read(pumpRunning)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L183] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L319] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L276] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L233] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L205] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L208] COND TRUE ! pumpRunning [L439] int retValue_acc ; [L440] int tmp ; [L441] int tmp___0 ; [L138] int retValue_acc ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L141] COND FALSE !(waterLevel < 2) [L145] retValue_acc = 0 [L146] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L445] tmp = isHighWaterSensorDry() [L447] COND FALSE !(\read(tmp)) [L450] tmp___0 = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L452] retValue_acc = tmp___0 [L453] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L210] tmp = isHighWaterLevel() [L212] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L361] COND FALSE !(\read(__SELECTED_FEATURE_methaneQuery)) [L336] pumpRunning = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L690] int tmp ; [L691] int tmp___0 ; [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L695] tmp = isMethaneLevelCritical() [L697] COND TRUE \read(tmp) [L394] int retValue_acc ; [L397] retValue_acc = pumpRunning [L398] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L699] tmp___0 = isPumpRunning() [L701] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L702] COND FALSE !(\read(methAndRunningLastTime)) [L707] methAndRunningLastTime = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L612] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L614] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L620] tmp = __VERIFIER_nondet_int() [L622] COND FALSE !(\read(tmp)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L630] tmp___0 = __VERIFIER_nondet_int() [L632] COND FALSE !(\read(tmp___0)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L640] tmp___2 = __VERIFIER_nondet_int() [L642] COND FALSE !(\read(tmp___2)) [L652] tmp___1 = __VERIFIER_nondet_int() [L654] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L176] COND TRUE \read(pumpRunning) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L64] COND TRUE waterLevel > 0 [L65] waterLevel = waterLevel - 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L183] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L319] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L276] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L233] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L205] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L208] COND FALSE !(! pumpRunning) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L690] int tmp ; [L691] int tmp___0 ; [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L695] tmp = isMethaneLevelCritical() [L697] COND TRUE \read(tmp) [L394] int retValue_acc ; [L397] retValue_acc = pumpRunning [L398] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L699] tmp___0 = isPumpRunning() [L701] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L702] COND TRUE \read(methAndRunningLastTime) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec2_productSimulator.cil.c", 3, "reach_error") VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 477 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.5s, OverallIterations: 12, TraceHistogramMax: 2, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3841 SDtfs, 4561 SDslu, 4736 SDs, 0 SdLazy, 590 SolverSat, 198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1316 GetRequests, 1275 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1837occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 2516 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 731 NumberOfCodeBlocks, 731 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1300 ConstructedInterpolants, 0 QuantifiedInterpolants, 181744 SizeOfPredicates, 20 NumberOfNonLiveVariables, 3492 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 28 InterpolantComputations, 22 PerfectInterpolantSequences, 182/206 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...