./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product30.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_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/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 c3af3488d01362ddaf924617126551b8dab4cf6b ............................................................................................................................................ 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_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/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 c3af3488d01362ddaf924617126551b8dab4cf6b .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:52:40,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:52:40,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:52:40,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:52:40,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:52:40,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:52:40,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:52:40,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:52:40,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:52:40,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:52:40,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:52:40,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:52:40,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:52:40,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:52:40,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:52:40,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:52:40,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:52:40,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:52:40,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:52:41,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:52:41,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:52:41,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:52:41,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:52:41,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:52:41,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:52:41,023 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:52:41,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:52:41,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:52:41,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:52:41,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:52:41,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:52:41,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:52:41,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:52:41,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:52:41,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:52:41,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:52:41,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:52:41,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:52:41,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:52:41,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:52:41,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:52:41,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:52:41,070 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:52:41,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:52:41,072 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:52:41,072 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:52:41,073 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:52:41,073 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:52:41,074 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:52:41,074 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:52:41,074 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:52:41,075 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:52:41,075 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:52:41,076 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:52:41,076 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:52:41,076 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:52:41,077 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:52:41,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:52:41,078 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:52:41,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:52:41,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:52:41,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:52:41,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:52:41,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:52:41,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:52:41,081 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:52:41,081 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:52:41,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:52:41,082 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:52:41,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:52:41,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:52:41,083 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:52:41,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:52:41,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:52:41,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:52:41,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:52:41,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:52:41,085 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:52:41,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:52:41,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:52:41,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:52:41,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:52:41,086 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_3225c2a4-68b9-455f-a7d1-dbd459d2758e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3af3488d01362ddaf924617126551b8dab4cf6b [2020-11-22 12:52:41,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:52:41,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:52:41,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:52:41,436 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:52:41,437 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:52:41,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c [2020-11-22 12:52:41,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/data/494bd46e9/f116fc064571404982adb89fe3f9f77b/FLAGf667de367 [2020-11-22 12:52:42,179 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:52:42,180 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c [2020-11-22 12:52:42,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/data/494bd46e9/f116fc064571404982adb89fe3f9f77b/FLAGf667de367 [2020-11-22 12:52:42,437 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/data/494bd46e9/f116fc064571404982adb89fe3f9f77b [2020-11-22 12:52:42,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:52:42,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:52:42,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:52:42,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:52:42,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:52:42,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:52:42" (1/1) ... [2020-11-22 12:52:42,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a3375bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:42, skipping insertion in model container [2020-11-22 12:52:42,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:52:42" (1/1) ... [2020-11-22 12:52:42,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:52:42,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:52:42,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:52:42,952 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 12:52:42,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@69fb8870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:42, skipping insertion in model container [2020-11-22 12:52:42,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:52:42,956 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 12:52:42,960 INFO L168 Benchmark]: Toolchain (without parser) took 515.48 ms. Allocated memory is still 94.4 MB. Free memory was 63.0 MB in the beginning and 68.0 MB in the end (delta: -5.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:42,962 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 50.7 MB in the beginning and 50.7 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:52:42,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 511.35 ms. Allocated memory is still 94.4 MB. Free memory was 62.9 MB in the beginning and 68.3 MB in the end (delta: -5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:42,968 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 50.7 MB in the beginning and 50.7 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 511.35 ms. Allocated memory is still 94.4 MB. Free memory was 62.9 MB in the beginning and 68.3 MB in the end (delta: -5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 268]: 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 12:52:45,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:52:45,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:52:45,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:52:45,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:52:45,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:52:45,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:52:45,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:52:45,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:52:45,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:52:45,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:52:45,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:52:45,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:52:45,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:52:45,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:52:45,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:52:45,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:52:45,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:52:45,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:52:45,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:52:45,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:52:45,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:52:45,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:52:45,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:52:45,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:52:45,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:52:45,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:52:46,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:52:46,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:52:46,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:52:46,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:52:46,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:52:46,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:52:46,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:52:46,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:52:46,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:52:46,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:52:46,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:52:46,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:52:46,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:52:46,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:52:46,018 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:52:46,071 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:52:46,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:52:46,075 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:52:46,075 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:52:46,076 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:52:46,076 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:52:46,076 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:52:46,076 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:52:46,077 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:52:46,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:52:46,080 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:52:46,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:52:46,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:52:46,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:52:46,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:52:46,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:52:46,082 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:52:46,082 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:52:46,083 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:52:46,083 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:52:46,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:52:46,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:52:46,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:52:46,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:52:46,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:52:46,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:52:46,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:52:46,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:52:46,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:52:46,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:52:46,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:52:46,086 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:52:46,087 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:52:46,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:52:46,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:52:46,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:52:46,088 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_3225c2a4-68b9-455f-a7d1-dbd459d2758e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3af3488d01362ddaf924617126551b8dab4cf6b [2020-11-22 12:52:46,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:52:46,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:52:46,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:52:46,618 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:52:46,621 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:52:46,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c [2020-11-22 12:52:46,716 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/data/2678c25f2/ea29bb0da40c45a79fb9c776f4cec4ad/FLAG5cc68f17a [2020-11-22 12:52:47,478 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:52:47,478 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c [2020-11-22 12:52:47,494 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/data/2678c25f2/ea29bb0da40c45a79fb9c776f4cec4ad/FLAG5cc68f17a [2020-11-22 12:52:47,696 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/data/2678c25f2/ea29bb0da40c45a79fb9c776f4cec4ad [2020-11-22 12:52:47,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:52:47,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:52:47,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:52:47,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:52:47,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:52:47,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:52:47" (1/1) ... [2020-11-22 12:52:47,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5edead41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:47, skipping insertion in model container [2020-11-22 12:52:47,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:52:47" (1/1) ... [2020-11-22 12:52:47,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:52:47,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:52:48,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:52:48,246 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 12:52:48,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:52:48,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:52:48,381 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:52:48,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:52:48,523 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:52:48,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:48 WrapperNode [2020-11-22 12:52:48,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:52:48,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:52:48,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:52:48,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:52:48,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:48" (1/1) ... [2020-11-22 12:52:48,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:48" (1/1) ... [2020-11-22 12:52:48,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:52:48,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:52:48,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:52:48,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:52:48,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:48" (1/1) ... [2020-11-22 12:52:48,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:48" (1/1) ... [2020-11-22 12:52:48,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:48" (1/1) ... [2020-11-22 12:52:48,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:48" (1/1) ... [2020-11-22 12:52:48,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:48" (1/1) ... [2020-11-22 12:52:48,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:48" (1/1) ... [2020-11-22 12:52:48,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:48" (1/1) ... [2020-11-22 12:52:48,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:52:48,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:52:48,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:52:48,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:52:48,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/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 12:52:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:52:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:52:48,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:52:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:52:51,771 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:52:51,772 INFO L298 CfgBuilder]: Removed 170 assume(true) statements. [2020-11-22 12:52:51,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:52:51 BoogieIcfgContainer [2020-11-22 12:52:51,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:52:51,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:52:51,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:52:51,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:52:51,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:52:47" (1/3) ... [2020-11-22 12:52:51,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af60d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:52:51, skipping insertion in model container [2020-11-22 12:52:51,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:52:48" (2/3) ... [2020-11-22 12:52:51,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af60d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:52:51, skipping insertion in model container [2020-11-22 12:52:51,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:52:51" (3/3) ... [2020-11-22 12:52:51,789 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product30.cil.c [2020-11-22 12:52:51,809 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:52:51,814 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 12:52:51,835 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:52:51,867 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:52:51,867 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:52:51,867 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:52:51,868 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:52:51,868 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:52:51,868 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:52:51,868 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:52:51,869 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:52:51,889 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-11-22 12:52:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 12:52:51,897 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:52:51,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:52:51,899 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:52:51,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:52:51,906 INFO L82 PathProgramCache]: Analyzing trace with hash 317396223, now seen corresponding path program 1 times [2020-11-22 12:52:51,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:52:51,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836233277] [2020-11-22 12:52:51,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/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 12:52:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:52:52,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:52:52,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:52:52,224 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 12:52:52,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:52:52,231 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 12:52:52,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836233277] [2020-11-22 12:52:52,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:52:52,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:52:52,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299493300] [2020-11-22 12:52:52,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:52:52,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:52:52,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:52:52,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:52:52,259 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 2 states. [2020-11-22 12:52:52,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:52:52,298 INFO L93 Difference]: Finished difference Result 219 states and 326 transitions. [2020-11-22 12:52:52,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:52:52,299 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 12:52:52,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:52:52,313 INFO L225 Difference]: With dead ends: 219 [2020-11-22 12:52:52,313 INFO L226 Difference]: Without dead ends: 107 [2020-11-22 12:52:52,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 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 12:52:52,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-11-22 12:52:52,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-11-22 12:52:52,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-22 12:52:52,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2020-11-22 12:52:52,369 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 18 [2020-11-22 12:52:52,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:52:52,370 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2020-11-22 12:52:52,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:52:52,370 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2020-11-22 12:52:52,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 12:52:52,372 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:52:52,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:52:52,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:52:52,586 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:52:52,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:52:52,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1708273875, now seen corresponding path program 1 times [2020-11-22 12:52:52,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:52:52,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83844135] [2020-11-22 12:52:52,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/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 12:52:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:52:52,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:52:52,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:52:52,865 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 12:52:52,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:52:52,891 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 12:52:52,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83844135] [2020-11-22 12:52:52,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:52:52,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:52:52,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440037995] [2020-11-22 12:52:52,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:52:52,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:52:52,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:52:52,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:52:52,896 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand 4 states. [2020-11-22 12:52:52,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:52:52,916 INFO L93 Difference]: Finished difference Result 107 states and 153 transitions. [2020-11-22 12:52:52,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:52:52,917 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 12:52:52,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:52:52,918 INFO L225 Difference]: With dead ends: 107 [2020-11-22 12:52:52,918 INFO L226 Difference]: Without dead ends: 45 [2020-11-22 12:52:52,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 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 12:52:52,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-22 12:52:52,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-22 12:52:52,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-22 12:52:52,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2020-11-22 12:52:52,927 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 19 [2020-11-22 12:52:52,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:52:52,928 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-11-22 12:52:52,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:52:52,928 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-11-22 12:52:52,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 12:52:52,929 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:52:52,930 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] [2020-11-22 12:52:53,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:52:53,149 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:52:53,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:52:53,150 INFO L82 PathProgramCache]: Analyzing trace with hash 197323452, now seen corresponding path program 1 times [2020-11-22 12:52:53,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:52:53,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321146730] [2020-11-22 12:52:53,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/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 12:52:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:52:53,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 12:52:53,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:52:53,386 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 12:52:53,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:52:53,396 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 12:52:53,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321146730] [2020-11-22 12:52:53,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:52:53,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:52:53,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972557028] [2020-11-22 12:52:53,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:52:53,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:52:53,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:52:53,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:52:53,399 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 4 states. [2020-11-22 12:52:53,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:52:53,455 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2020-11-22 12:52:53,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:52:53,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 12:52:53,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:52:53,458 INFO L225 Difference]: With dead ends: 84 [2020-11-22 12:52:53,458 INFO L226 Difference]: Without dead ends: 45 [2020-11-22 12:52:53,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 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 12:52:53,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-22 12:52:53,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-22 12:52:53,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-22 12:52:53,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2020-11-22 12:52:53,467 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 24 [2020-11-22 12:52:53,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:52:53,468 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2020-11-22 12:52:53,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:52:53,468 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2020-11-22 12:52:53,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 12:52:53,470 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:52:53,470 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 12:52:53,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:52:53,694 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:52:53,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:52:53,694 INFO L82 PathProgramCache]: Analyzing trace with hash -303470070, now seen corresponding path program 1 times [2020-11-22 12:52:53,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:52:53,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295786021] [2020-11-22 12:52:53,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/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 12:52:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:52:53,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 12:52:53,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:52:54,009 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 12:52:54,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:52:54,068 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 12:52:54,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295786021] [2020-11-22 12:52:54,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:52:54,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 12:52:54,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122326061] [2020-11-22 12:52:54,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 12:52:54,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:52:54,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 12:52:54,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:52:54,072 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand 8 states. [2020-11-22 12:52:54,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:52:54,677 INFO L93 Difference]: Finished difference Result 500 states and 749 transitions. [2020-11-22 12:52:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 12:52:54,678 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-11-22 12:52:54,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:52:54,684 INFO L225 Difference]: With dead ends: 500 [2020-11-22 12:52:54,684 INFO L226 Difference]: Without dead ends: 461 [2020-11-22 12:52:54,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-22 12:52:54,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2020-11-22 12:52:54,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 114. [2020-11-22 12:52:54,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-22 12:52:54,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 163 transitions. [2020-11-22 12:52:54,748 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 163 transitions. Word has length 26 [2020-11-22 12:52:54,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:52:54,750 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 163 transitions. [2020-11-22 12:52:54,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 12:52:54,751 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 163 transitions. [2020-11-22 12:52:54,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-22 12:52:54,756 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:52:54,757 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] [2020-11-22 12:52:54,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 12:52:54,959 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:52:54,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:52:54,960 INFO L82 PathProgramCache]: Analyzing trace with hash -912506616, now seen corresponding path program 1 times [2020-11-22 12:52:54,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:52:54,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663679641] [2020-11-22 12:52:54,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/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 12:52:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:52:56,384 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:52:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:52:57,638 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:52:57,811 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 12:52:57,812 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:52:58,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 12:52:58,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:52:58 BoogieIcfgContainer [2020-11-22 12:52:58,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:52:58,219 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:52:58,219 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:52:58,219 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:52:58,220 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:52:51" (3/4) ... [2020-11-22 12:52:58,222 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:52:58,326 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3225c2a4-68b9-455f-a7d1-dbd459d2758e/bin/utaipan/witness.graphml [2020-11-22 12:52:58,326 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:52:58,331 INFO L168 Benchmark]: Toolchain (without parser) took 10626.22 ms. Allocated memory was 54.5 MB in the beginning and 83.9 MB in the end (delta: 29.4 MB). Free memory was 32.1 MB in the beginning and 47.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:58,332 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 36.3 MB in the end (delta: 29.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:52:58,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 821.14 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 31.9 MB in the beginning and 36.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:58,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.29 ms. Allocated memory is still 69.2 MB. Free memory was 36.7 MB in the beginning and 51.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:58,335 INFO L168 Benchmark]: Boogie Preprocessor took 60.87 ms. Allocated memory is still 69.2 MB. Free memory was 51.6 MB in the beginning and 48.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:58,336 INFO L168 Benchmark]: RCFGBuilder took 3065.57 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 48.9 MB in the beginning and 55.3 MB in the end (delta: -6.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:58,340 INFO L168 Benchmark]: TraceAbstraction took 6440.78 ms. Allocated memory is still 83.9 MB. Free memory was 54.8 MB in the beginning and 58.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:58,341 INFO L168 Benchmark]: Witness Printer took 107.43 ms. Allocated memory is still 83.9 MB. Free memory was 58.8 MB in the beginning and 47.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:52:58,346 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 36.3 MB in the end (delta: 29.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 821.14 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 31.9 MB in the beginning and 36.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 122.29 ms. Allocated memory is still 69.2 MB. Free memory was 36.7 MB in the beginning and 51.6 MB in the end (delta: -14.8 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.87 ms. Allocated memory is still 69.2 MB. Free memory was 51.6 MB in the beginning and 48.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3065.57 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 48.9 MB in the beginning and 55.3 MB in the end (delta: -6.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6440.78 ms. Allocated memory is still 83.9 MB. Free memory was 54.8 MB in the beginning and 58.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. * Witness Printer took 107.43 ms. Allocated memory is still 83.9 MB. Free memory was 58.8 MB in the beginning and 47.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L138] int cleanupTimeShifts = 4; [L409] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L677] int pumpRunning = 0; [L678] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L217] int retValue_acc ; [L218] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L916] int retValue_acc ; [L919] retValue_acc = 1 [L920] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L224] tmp = valid_product() [L226] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L608] int splverifierCounter ; [L609] int tmp ; [L610] int tmp___0 ; [L611] int tmp___1 ; [L612] int tmp___2 ; [L615] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L617] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L619] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L625] tmp = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L635] tmp___0 = __VERIFIER_nondet_int() [L637] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L645] tmp___2 = __VERIFIER_nondet_int() [L647] COND TRUE \read(tmp___2) [L876] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L685] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L692] COND TRUE \read(systemActive) [L740] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L743] COND FALSE !(\read(pumpRunning)) [L714] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L717] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L926] int tmp ; [L927] int tmp___0 ; [L928] int tmp___1 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L932] tmp = isMethaneLevelCritical() [L934] COND FALSE !(\read(tmp)) [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L938] tmp___0 = getWaterLevel() [L940] COND TRUE tmp___0 == 2 [L809] int retValue_acc ; [L812] retValue_acc = pumpRunning [L813] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L942] tmp___1 = isPumpRunning() [L944] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product30.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 114 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 386 SDtfs, 1006 SDslu, 695 SDs, 0 SdLazy, 124 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 347 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 8750 SizeOfPredicates, 6 NumberOfNonLiveVariables, 793 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...