./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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 b1532eb84511f08efccba1f71db5d8156ba5c802 ........................................................................................................................................... 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_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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 b1532eb84511f08efccba1f71db5d8156ba5c802 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2020-12-09 16:34:12,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 16:34:12,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 16:34:12,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 16:34:12,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 16:34:12,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 16:34:12,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 16:34:12,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 16:34:12,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 16:34:12,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 16:34:12,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 16:34:12,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 16:34:12,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 16:34:12,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 16:34:12,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 16:34:12,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 16:34:12,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 16:34:12,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 16:34:12,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 16:34:12,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 16:34:12,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 16:34:12,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 16:34:12,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 16:34:12,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 16:34:12,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 16:34:12,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 16:34:12,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 16:34:12,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 16:34:12,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 16:34:12,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 16:34:12,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 16:34:12,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 16:34:12,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 16:34:12,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 16:34:12,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 16:34:12,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 16:34:12,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 16:34:12,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 16:34:12,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 16:34:12,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 16:34:12,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 16:34:12,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 16:34:12,947 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 16:34:12,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 16:34:12,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 16:34:12,948 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 16:34:12,948 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 16:34:12,948 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 16:34:12,948 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 16:34:12,949 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 16:34:12,949 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 16:34:12,949 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 16:34:12,949 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 16:34:12,949 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 16:34:12,949 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 16:34:12,950 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 16:34:12,950 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 16:34:12,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 16:34:12,951 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 16:34:12,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 16:34:12,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 16:34:12,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 16:34:12,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 16:34:12,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 16:34:12,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 16:34:12,952 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 16:34:12,952 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 16:34:12,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 16:34:12,952 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 16:34:12,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 16:34:12,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 16:34:12,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 16:34:12,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 16:34:12,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 16:34:12,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 16:34:12,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 16:34:12,954 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 16:34:12,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 16:34:12,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 16:34:12,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 16:34:12,954 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 16:34:12,954 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_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1532eb84511f08efccba1f71db5d8156ba5c802 [2020-12-09 16:34:13,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 16:34:13,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 16:34:13,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 16:34:13,148 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 16:34:13,148 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 16:34:13,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c [2020-12-09 16:34:13,188 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/data/a0223187d/a1135bcf162f4919b7a836c4adb0b69a/FLAG891a77d93 [2020-12-09 16:34:13,584 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 16:34:13,585 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c [2020-12-09 16:34:13,594 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/data/a0223187d/a1135bcf162f4919b7a836c4adb0b69a/FLAG891a77d93 [2020-12-09 16:34:13,603 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/data/a0223187d/a1135bcf162f4919b7a836c4adb0b69a [2020-12-09 16:34:13,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 16:34:13,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 16:34:13,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 16:34:13,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 16:34:13,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 16:34:13,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:34:13" (1/1) ... [2020-12-09 16:34:13,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a3a81cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:13, skipping insertion in model container [2020-12-09 16:34:13,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:34:13" (1/1) ... [2020-12-09 16:34:13,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 16:34:13,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 16:34:13,859 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c[19893,19906] [2020-12-09 16:34:13,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:34:13,874 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) [2020-12-09 16:34:13,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@131f3622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:13, skipping insertion in model container [2020-12-09 16:34:13,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 16:34:13,875 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-12-09 16:34:13,876 INFO L168 Benchmark]: Toolchain (without parser) took 269.06 ms. Allocated memory is still 96.5 MB. Free memory was 55.0 MB in the beginning and 64.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-12-09 16:34:13,877 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 96.5 MB. Free memory is still 72.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 16:34:13,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.20 ms. Allocated memory is still 96.5 MB. Free memory was 54.8 MB in the beginning and 64.5 MB in the end (delta: -9.7 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-12-09 16:34:13,878 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 96.5 MB. Free memory is still 72.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 267.20 ms. Allocated memory is still 96.5 MB. Free memory was 54.8 MB in the beginning and 64.5 MB in the end (delta: -9.7 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 502]: 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 0.2.0-7b2dab5 [2020-12-09 16:34:15,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 16:34:15,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 16:34:15,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 16:34:15,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 16:34:15,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 16:34:15,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 16:34:15,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 16:34:15,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 16:34:15,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 16:34:15,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 16:34:15,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 16:34:15,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 16:34:15,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 16:34:15,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 16:34:15,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 16:34:15,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 16:34:15,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 16:34:15,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 16:34:15,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 16:34:15,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 16:34:15,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 16:34:15,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 16:34:15,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 16:34:15,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 16:34:15,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 16:34:15,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 16:34:15,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 16:34:15,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 16:34:15,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 16:34:15,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 16:34:15,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 16:34:15,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 16:34:15,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 16:34:15,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 16:34:15,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 16:34:15,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 16:34:15,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 16:34:15,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 16:34:15,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 16:34:15,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 16:34:15,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 16:34:15,334 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 16:34:15,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 16:34:15,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 16:34:15,335 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 16:34:15,335 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 16:34:15,335 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 16:34:15,335 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 16:34:15,336 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 16:34:15,336 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 16:34:15,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 16:34:15,337 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 16:34:15,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 16:34:15,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 16:34:15,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 16:34:15,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 16:34:15,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 16:34:15,337 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 16:34:15,337 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 16:34:15,338 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 16:34:15,338 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 16:34:15,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 16:34:15,338 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 16:34:15,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 16:34:15,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 16:34:15,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 16:34:15,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 16:34:15,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 16:34:15,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 16:34:15,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 16:34:15,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 16:34:15,339 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 16:34:15,339 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 16:34:15,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 16:34:15,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 16:34:15,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 16:34:15,340 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_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1532eb84511f08efccba1f71db5d8156ba5c802 [2020-12-09 16:34:15,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 16:34:15,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 16:34:15,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 16:34:15,584 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 16:34:15,584 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 16:34:15,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c [2020-12-09 16:34:15,625 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/data/ab6300f6b/95bf0f20881f4daeaea5f36d1a8ad584/FLAGc1e296ce3 [2020-12-09 16:34:16,044 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 16:34:16,044 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c [2020-12-09 16:34:16,054 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/data/ab6300f6b/95bf0f20881f4daeaea5f36d1a8ad584/FLAGc1e296ce3 [2020-12-09 16:34:16,063 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/data/ab6300f6b/95bf0f20881f4daeaea5f36d1a8ad584 [2020-12-09 16:34:16,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 16:34:16,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 16:34:16,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 16:34:16,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 16:34:16,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 16:34:16,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:34:16" (1/1) ... [2020-12-09 16:34:16,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@618fa8c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:16, skipping insertion in model container [2020-12-09 16:34:16,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:34:16" (1/1) ... [2020-12-09 16:34:16,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 16:34:16,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 16:34:16,332 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c[19893,19906] [2020-12-09 16:34:16,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:34:16,361 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-12-09 16:34:16,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 16:34:16,432 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c[19893,19906] [2020-12-09 16:34:16,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:34:16,440 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 16:34:16,494 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c[19893,19906] [2020-12-09 16:34:16,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:34:16,546 INFO L208 MainTranslator]: Completed translation [2020-12-09 16:34:16,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:16 WrapperNode [2020-12-09 16:34:16,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 16:34:16,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 16:34:16,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 16:34:16,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 16:34:16,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:16" (1/1) ... [2020-12-09 16:34:16,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:16" (1/1) ... [2020-12-09 16:34:16,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 16:34:16,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 16:34:16,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 16:34:16,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 16:34:16,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:16" (1/1) ... [2020-12-09 16:34:16,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:16" (1/1) ... [2020-12-09 16:34:16,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:16" (1/1) ... [2020-12-09 16:34:16,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:16" (1/1) ... [2020-12-09 16:34:16,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:16" (1/1) ... [2020-12-09 16:34:16,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:16" (1/1) ... [2020-12-09 16:34:16,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:16" (1/1) ... [2020-12-09 16:34:16,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 16:34:16,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 16:34:16,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 16:34:16,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 16:34:16,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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 [2020-12-09 16:34:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 16:34:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 16:34:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 16:34:16,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 16:34:19,073 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 16:34:19,074 INFO L299 CfgBuilder]: Removed 900 assume(true) statements. [2020-12-09 16:34:19,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:34:19 BoogieIcfgContainer [2020-12-09 16:34:19,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 16:34:19,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 16:34:19,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 16:34:19,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 16:34:19,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:34:16" (1/3) ... [2020-12-09 16:34:19,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41aa72e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:34:19, skipping insertion in model container [2020-12-09 16:34:19,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:34:16" (2/3) ... [2020-12-09 16:34:19,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41aa72e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:34:19, skipping insertion in model container [2020-12-09 16:34:19,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:34:19" (3/3) ... [2020-12-09 16:34:19,082 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_productSimulator.cil.c [2020-12-09 16:34:19,091 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 16:34:19,095 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-09 16:34:19,103 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-09 16:34:19,123 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 16:34:19,123 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 16:34:19,123 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 16:34:19,123 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 16:34:19,123 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 16:34:19,123 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 16:34:19,123 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 16:34:19,123 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 16:34:19,140 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states. [2020-12-09 16:34:19,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-09 16:34:19,144 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:34:19,145 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] [2020-12-09 16:34:19,145 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:34:19,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:34:19,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1535705576, now seen corresponding path program 1 times [2020-12-09 16:34:19,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:34:19,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110878539] [2020-12-09 16:34:19,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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 [2020-12-09 16:34:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:34:19,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 16:34:19,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:34:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:34:19,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:34:19,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110878539] [2020-12-09 16:34:19,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:34:19,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 16:34:19,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244075202] [2020-12-09 16:34:19,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 16:34:19,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:34:19,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 16:34:19,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 16:34:19,374 INFO L87 Difference]: Start difference. First operand 470 states. Second operand 2 states. [2020-12-09 16:34:19,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:34:19,436 INFO L93 Difference]: Finished difference Result 927 states and 1454 transitions. [2020-12-09 16:34:19,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 16:34:19,437 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2020-12-09 16:34:19,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:34:19,450 INFO L225 Difference]: With dead ends: 927 [2020-12-09 16:34:19,450 INFO L226 Difference]: Without dead ends: 466 [2020-12-09 16:34:19,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 16:34:19,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-12-09 16:34:19,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2020-12-09 16:34:19,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-12-09 16:34:19,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 722 transitions. [2020-12-09 16:34:19,520 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 722 transitions. Word has length 23 [2020-12-09 16:34:19,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:34:19,520 INFO L481 AbstractCegarLoop]: Abstraction has 466 states and 722 transitions. [2020-12-09 16:34:19,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 16:34:19,520 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 722 transitions. [2020-12-09 16:34:19,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-09 16:34:19,521 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:34:19,521 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] [2020-12-09 16:34:19,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 16:34:19,724 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:34:19,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:34:19,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1882100476, now seen corresponding path program 1 times [2020-12-09 16:34:19,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:34:19,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744542410] [2020-12-09 16:34:19,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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 [2020-12-09 16:34:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:34:19,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 16:34:19,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:34:20,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:34:20,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:34:20,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744542410] [2020-12-09 16:34:20,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:34:20,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 16:34:20,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361610142] [2020-12-09 16:34:20,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 16:34:20,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:34:20,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 16:34:20,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 16:34:20,025 INFO L87 Difference]: Start difference. First operand 466 states and 722 transitions. Second operand 3 states. [2020-12-09 16:34:20,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:34:20,053 INFO L93 Difference]: Finished difference Result 466 states and 722 transitions. [2020-12-09 16:34:20,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 16:34:20,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-09 16:34:20,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:34:20,057 INFO L225 Difference]: With dead ends: 466 [2020-12-09 16:34:20,057 INFO L226 Difference]: Without dead ends: 172 [2020-12-09 16:34:20,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 16:34:20,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-12-09 16:34:20,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-12-09 16:34:20,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-12-09 16:34:20,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 263 transitions. [2020-12-09 16:34:20,077 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 263 transitions. Word has length 24 [2020-12-09 16:34:20,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:34:20,077 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 263 transitions. [2020-12-09 16:34:20,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 16:34:20,078 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 263 transitions. [2020-12-09 16:34:20,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-09 16:34:20,079 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:34:20,079 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] [2020-12-09 16:34:20,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 16:34:20,281 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:34:20,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:34:20,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1978143563, now seen corresponding path program 1 times [2020-12-09 16:34:20,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:34:20,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897678455] [2020-12-09 16:34:20,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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 [2020-12-09 16:34:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:34:20,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 16:34:20,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:34:20,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:34:20,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:34:20,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897678455] [2020-12-09 16:34:20,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:34:20,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 16:34:20,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524547030] [2020-12-09 16:34:20,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 16:34:20,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:34:20,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 16:34:20,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 16:34:20,595 INFO L87 Difference]: Start difference. First operand 172 states and 263 transitions. Second operand 3 states. [2020-12-09 16:34:20,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:34:20,627 INFO L93 Difference]: Finished difference Result 490 states and 763 transitions. [2020-12-09 16:34:20,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 16:34:20,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-12-09 16:34:20,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:34:20,631 INFO L225 Difference]: With dead ends: 490 [2020-12-09 16:34:20,631 INFO L226 Difference]: Without dead ends: 331 [2020-12-09 16:34:20,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 16:34:20,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-12-09 16:34:20,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 327. [2020-12-09 16:34:20,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-12-09 16:34:20,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 508 transitions. [2020-12-09 16:34:20,663 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 508 transitions. Word has length 30 [2020-12-09 16:34:20,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:34:20,663 INFO L481 AbstractCegarLoop]: Abstraction has 327 states and 508 transitions. [2020-12-09 16:34:20,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 16:34:20,663 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 508 transitions. [2020-12-09 16:34:20,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-09 16:34:20,665 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:34:20,665 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] [2020-12-09 16:34:20,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 16:34:20,866 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:34:20,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:34:20,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1554604317, now seen corresponding path program 1 times [2020-12-09 16:34:20,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:34:20,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599628749] [2020-12-09 16:34:20,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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 [2020-12-09 16:34:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:34:21,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 16:34:21,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:34:21,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:34:21,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:34:21,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599628749] [2020-12-09 16:34:21,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:34:21,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 16:34:21,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249960524] [2020-12-09 16:34:21,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 16:34:21,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:34:21,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 16:34:21,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 16:34:21,036 INFO L87 Difference]: Start difference. First operand 327 states and 508 transitions. Second operand 3 states. [2020-12-09 16:34:21,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:34:21,119 INFO L93 Difference]: Finished difference Result 662 states and 1041 transitions. [2020-12-09 16:34:21,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 16:34:21,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-12-09 16:34:21,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:34:21,123 INFO L225 Difference]: With dead ends: 662 [2020-12-09 16:34:21,123 INFO L226 Difference]: Without dead ends: 348 [2020-12-09 16:34:21,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 16:34:21,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-12-09 16:34:21,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 346. [2020-12-09 16:34:21,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-12-09 16:34:21,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 526 transitions. [2020-12-09 16:34:21,147 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 526 transitions. Word has length 33 [2020-12-09 16:34:21,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:34:21,148 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 526 transitions. [2020-12-09 16:34:21,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 16:34:21,148 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 526 transitions. [2020-12-09 16:34:21,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-09 16:34:21,149 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:34:21,150 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] [2020-12-09 16:34:21,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 16:34:21,351 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:34:21,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:34:21,351 INFO L82 PathProgramCache]: Analyzing trace with hash 965063802, now seen corresponding path program 1 times [2020-12-09 16:34:21,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:34:21,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695197656] [2020-12-09 16:34:21,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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 [2020-12-09 16:34:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:34:21,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 16:34:21,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:34:21,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:34:21,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:34:21,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695197656] [2020-12-09 16:34:21,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:34:21,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 16:34:21,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986847645] [2020-12-09 16:34:21,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 16:34:21,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:34:21,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 16:34:21,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 16:34:21,513 INFO L87 Difference]: Start difference. First operand 346 states and 526 transitions. Second operand 5 states. [2020-12-09 16:34:21,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:34:21,741 INFO L93 Difference]: Finished difference Result 1934 states and 2999 transitions. [2020-12-09 16:34:21,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 16:34:21,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-12-09 16:34:21,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:34:21,752 INFO L225 Difference]: With dead ends: 1934 [2020-12-09 16:34:21,752 INFO L226 Difference]: Without dead ends: 1601 [2020-12-09 16:34:21,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-09 16:34:21,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2020-12-09 16:34:21,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 669. [2020-12-09 16:34:21,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-12-09 16:34:21,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1018 transitions. [2020-12-09 16:34:21,807 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1018 transitions. Word has length 33 [2020-12-09 16:34:21,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:34:21,808 INFO L481 AbstractCegarLoop]: Abstraction has 669 states and 1018 transitions. [2020-12-09 16:34:21,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 16:34:21,808 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1018 transitions. [2020-12-09 16:34:21,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-09 16:34:21,809 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:34:21,810 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] [2020-12-09 16:34:22,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 16:34:22,010 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:34:22,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:34:22,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1927811083, now seen corresponding path program 1 times [2020-12-09 16:34:22,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:34:22,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032147071] [2020-12-09 16:34:22,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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 [2020-12-09 16:34:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:34:22,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 16:34:22,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:34:22,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:34:22,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:34:22,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032147071] [2020-12-09 16:34:22,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:34:22,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 16:34:22,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728995996] [2020-12-09 16:34:22,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 16:34:22,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:34:22,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 16:34:22,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 16:34:22,175 INFO L87 Difference]: Start difference. First operand 669 states and 1018 transitions. Second operand 5 states. [2020-12-09 16:34:22,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:34:22,493 INFO L93 Difference]: Finished difference Result 2147 states and 3281 transitions. [2020-12-09 16:34:22,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 16:34:22,494 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-12-09 16:34:22,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:34:22,507 INFO L225 Difference]: With dead ends: 2147 [2020-12-09 16:34:22,508 INFO L226 Difference]: Without dead ends: 2145 [2020-12-09 16:34:22,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-09 16:34:22,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2020-12-09 16:34:22,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 669. [2020-12-09 16:34:22,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-12-09 16:34:22,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 1016 transitions. [2020-12-09 16:34:22,571 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 1016 transitions. Word has length 34 [2020-12-09 16:34:22,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:34:22,572 INFO L481 AbstractCegarLoop]: Abstraction has 669 states and 1016 transitions. [2020-12-09 16:34:22,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 16:34:22,572 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 1016 transitions. [2020-12-09 16:34:22,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-09 16:34:22,573 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:34:22,574 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] [2020-12-09 16:34:22,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 16:34:22,774 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:34:22,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:34:22,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1912385192, now seen corresponding path program 1 times [2020-12-09 16:34:22,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:34:22,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862507860] [2020-12-09 16:34:22,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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 [2020-12-09 16:34:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:34:22,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 16:34:22,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:34:22,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:34:22,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:34:22,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862507860] [2020-12-09 16:34:22,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:34:22,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 16:34:22,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400061842] [2020-12-09 16:34:22,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 16:34:22,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:34:22,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 16:34:22,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 16:34:22,966 INFO L87 Difference]: Start difference. First operand 669 states and 1016 transitions. Second operand 5 states. [2020-12-09 16:34:23,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:34:23,210 INFO L93 Difference]: Finished difference Result 1677 states and 2527 transitions. [2020-12-09 16:34:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 16:34:23,211 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-12-09 16:34:23,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:34:23,217 INFO L225 Difference]: With dead ends: 1677 [2020-12-09 16:34:23,217 INFO L226 Difference]: Without dead ends: 1021 [2020-12-09 16:34:23,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 16:34:23,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2020-12-09 16:34:23,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 765. [2020-12-09 16:34:23,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 765 states. [2020-12-09 16:34:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1112 transitions. [2020-12-09 16:34:23,268 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1112 transitions. Word has length 42 [2020-12-09 16:34:23,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:34:23,269 INFO L481 AbstractCegarLoop]: Abstraction has 765 states and 1112 transitions. [2020-12-09 16:34:23,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 16:34:23,269 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1112 transitions. [2020-12-09 16:34:23,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-09 16:34:23,270 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:34:23,270 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] [2020-12-09 16:34:23,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 16:34:23,471 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:34:23,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:34:23,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1681517526, now seen corresponding path program 1 times [2020-12-09 16:34:23,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:34:23,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876121382] [2020-12-09 16:34:23,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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 [2020-12-09 16:34:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:34:23,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 16:34:23,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:34:23,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:34:23,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:34:23,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876121382] [2020-12-09 16:34:23,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:34:23,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 16:34:23,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340256241] [2020-12-09 16:34:23,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 16:34:23,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:34:23,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 16:34:23,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 16:34:23,661 INFO L87 Difference]: Start difference. First operand 765 states and 1112 transitions. Second operand 4 states. [2020-12-09 16:34:23,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:34:23,796 INFO L93 Difference]: Finished difference Result 1813 states and 2601 transitions. [2020-12-09 16:34:23,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 16:34:23,797 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-12-09 16:34:23,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:34:23,801 INFO L225 Difference]: With dead ends: 1813 [2020-12-09 16:34:23,801 INFO L226 Difference]: Without dead ends: 1061 [2020-12-09 16:34:23,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 16:34:23,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-12-09 16:34:23,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 829. [2020-12-09 16:34:23,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2020-12-09 16:34:23,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1176 transitions. [2020-12-09 16:34:23,840 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1176 transitions. Word has length 42 [2020-12-09 16:34:23,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:34:23,840 INFO L481 AbstractCegarLoop]: Abstraction has 829 states and 1176 transitions. [2020-12-09 16:34:23,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 16:34:23,840 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1176 transitions. [2020-12-09 16:34:23,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-09 16:34:23,841 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:34:23,841 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] [2020-12-09 16:34:24,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-12-09 16:34:24,042 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:34:24,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:34:24,042 INFO L82 PathProgramCache]: Analyzing trace with hash 2026643756, now seen corresponding path program 1 times [2020-12-09 16:34:24,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:34:24,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190366358] [2020-12-09 16:34:24,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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 [2020-12-09 16:34:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:34:24,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 16:34:24,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:34:24,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 16:34:24,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:34:24,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1190366358] [2020-12-09 16:34:24,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:34:24,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 16:34:24,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984437561] [2020-12-09 16:34:24,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 16:34:24,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:34:24,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 16:34:24,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 16:34:24,228 INFO L87 Difference]: Start difference. First operand 829 states and 1176 transitions. Second operand 3 states. [2020-12-09 16:34:24,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:34:24,309 INFO L93 Difference]: Finished difference Result 1877 states and 2649 transitions. [2020-12-09 16:34:24,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 16:34:24,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-12-09 16:34:24,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:34:24,314 INFO L225 Difference]: With dead ends: 1877 [2020-12-09 16:34:24,314 INFO L226 Difference]: Without dead ends: 1061 [2020-12-09 16:34:24,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 16:34:24,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-12-09 16:34:24,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1061. [2020-12-09 16:34:24,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1061 states. [2020-12-09 16:34:24,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1466 transitions. [2020-12-09 16:34:24,354 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1466 transitions. Word has length 42 [2020-12-09 16:34:24,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:34:24,354 INFO L481 AbstractCegarLoop]: Abstraction has 1061 states and 1466 transitions. [2020-12-09 16:34:24,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 16:34:24,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1466 transitions. [2020-12-09 16:34:24,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-09 16:34:24,356 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:34:24,356 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] [2020-12-09 16:34:24,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-12-09 16:34:24,557 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:34:24,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:34:24,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1499020087, now seen corresponding path program 1 times [2020-12-09 16:34:24,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:34:24,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016010545] [2020-12-09 16:34:24,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/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 [2020-12-09 16:34:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 16:34:25,461 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 16:34:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 16:34:26,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 16:34:26,829 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-09 16:34:26,829 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 16:34:27,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-12-09 16:34:27,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:34:27 BoogieIcfgContainer [2020-12-09 16:34:27,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 16:34:27,159 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 16:34:27,159 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 16:34:27,159 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 16:34:27,159 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:34:19" (3/4) ... [2020-12-09 16:34:27,161 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 16:34:27,245 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_422b6dc4-9c94-43ad-8f5d-0e906b44c063/bin/utaipan/witness.graphml [2020-12-09 16:34:27,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 16:34:27,246 INFO L168 Benchmark]: Toolchain (without parser) took 11179.49 ms. Allocated memory was 56.6 MB in the beginning and 136.3 MB in the end (delta: 79.7 MB). Free memory was 35.1 MB in the beginning and 100.5 MB in the end (delta: -65.4 MB). Peak memory consumption was 81.7 MB. Max. memory is 16.1 GB. [2020-12-09 16:34:27,247 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 39.2 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 16:34:27,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.64 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 34.8 MB in the beginning and 54.7 MB in the end (delta: -19.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-12-09 16:34:27,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.06 ms. Allocated memory is still 73.4 MB. Free memory was 54.7 MB in the beginning and 43.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 16:34:27,247 INFO L168 Benchmark]: Boogie Preprocessor took 93.50 ms. Allocated memory is still 73.4 MB. Free memory was 43.7 MB in the beginning and 50.8 MB in the end (delta: -7.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-12-09 16:34:27,248 INFO L168 Benchmark]: RCFGBuilder took 2325.99 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 50.8 MB in the beginning and 49.8 MB in the end (delta: 967.9 kB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. [2020-12-09 16:34:27,248 INFO L168 Benchmark]: TraceAbstraction took 8081.43 ms. Allocated memory was 92.3 MB in the beginning and 136.3 MB in the end (delta: 44.0 MB). Free memory was 49.8 MB in the beginning and 53.3 MB in the end (delta: -3.5 MB). Peak memory consumption was 41.6 MB. Max. memory is 16.1 GB. [2020-12-09 16:34:27,248 INFO L168 Benchmark]: Witness Printer took 86.64 ms. Allocated memory is still 136.3 MB. Free memory was 53.3 MB in the beginning and 100.5 MB in the end (delta: -47.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2020-12-09 16:34:27,250 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 39.2 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 479.64 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 34.8 MB in the beginning and 54.7 MB in the end (delta: -19.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.06 ms. Allocated memory is still 73.4 MB. Free memory was 54.7 MB in the beginning and 43.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.50 ms. Allocated memory is still 73.4 MB. Free memory was 43.7 MB in the beginning and 50.8 MB in the end (delta: -7.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2325.99 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 50.8 MB in the beginning and 49.8 MB in the end (delta: 967.9 kB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8081.43 ms. Allocated memory was 92.3 MB in the beginning and 136.3 MB in the end (delta: 44.0 MB). Free memory was 49.8 MB in the beginning and 53.3 MB in the end (delta: -3.5 MB). Peak memory consumption was 41.6 MB. Max. memory is 16.1 GB. * Witness Printer took 86.64 ms. Allocated memory is still 136.3 MB. Free memory was 53.3 MB in the beginning and 100.5 MB in the end (delta: -47.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1023]: a call to reach_error is reachable a call to reach_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 ; [L142] int pumpRunning = 0; [L143] int systemActive = 1; [L643] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L916] int waterLevel = 1; [L917] int methaneLevelCritical = 0; [L1028] int cleanupTimeShifts = 4; 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1101] int retValue_acc ; [L1102] int tmp ; [L874] __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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] __SELECTED_FEATURE_base = 1 [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L860] __SELECTED_FEATURE_highWaterSensor = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] __SELECTED_FEATURE_lowWaterSensor = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] __SELECTED_FEATURE_methaneQuery = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] __SELECTED_FEATURE_methaneAlarm = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L864] __SELECTED_FEATURE_stopCommand = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L865] __SELECTED_FEATURE_startCommand = select_one() [L879] int retValue_acc ; [L882] retValue_acc = __SELECTED_FEATURE_base [L883] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1108] tmp = valid_product() [L1110] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L68] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L74] tmp = __VERIFIER_nondet_int() [L76] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L934] COND TRUE waterLevel < 2 [L935] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] tmp___0 = __VERIFIER_nondet_int() [L86] 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}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L946] COND FALSE !(\read(methaneLevelCritical)) [L949] 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}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___2)) [L106] tmp___1 = __VERIFIER_nondet_int() [L108] 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}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L150] 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}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L157] 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}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L293] 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}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L250] 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}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L207] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L179] 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}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L182] COND TRUE ! pumpRunning [L413] int retValue_acc ; [L414] int tmp ; [L415] int tmp___0 ; [L996] 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}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L999] COND FALSE !(waterLevel < 2) [L1003] retValue_acc = 0 [L1004] 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}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L419] tmp = isHighWaterSensorDry() [L421] COND FALSE !(\read(tmp)) [L424] 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}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L426] retValue_acc = tmp___0 [L427] 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}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L184] tmp = isHighWaterLevel() [L186] 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}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L335] COND FALSE !(\read(__SELECTED_FEATURE_methaneQuery)) [L310] 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}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L890] int tmp ; [L891] int tmp___0 ; [L955] int retValue_acc ; [L958] retValue_acc = methaneLevelCritical [L959] 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}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L895] tmp = isMethaneLevelCritical() [L897] COND TRUE \read(tmp) [L368] int retValue_acc ; [L371] retValue_acc = pumpRunning [L372] 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}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L899] tmp___0 = isPumpRunning() [L901] 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}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L1023] 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}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 470 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3078 SDtfs, 3156 SDslu, 3657 SDs, 0 SdLazy, 507 SolverSat, 138 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 308 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1061occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 2902 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 346 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 23482 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2076 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...