./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/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 e293e64b1cdccf6f7dd8e0ea93ea165f8311c2d3 ............................................................................................................................................ 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_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/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 e293e64b1cdccf6f7dd8e0ea93ea165f8311c2d3 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:07:18,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:07:18,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:07:18,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:07:18,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:07:18,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:07:18,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:07:18,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:07:18,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:07:18,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:07:18,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:07:18,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:07:18,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:07:18,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:07:18,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:07:18,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:07:18,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:07:18,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:07:18,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:07:18,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:07:18,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:07:18,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:07:18,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:07:18,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:07:18,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:07:18,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:07:18,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:07:18,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:07:18,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:07:18,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:07:18,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:07:18,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:07:18,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:07:18,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:07:18,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:07:18,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:07:18,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:07:18,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:07:18,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:07:18,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:07:18,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:07:18,853 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:07:18,893 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:07:18,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:07:18,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:07:18,895 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:07:18,895 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:07:18,895 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:07:18,895 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:07:18,896 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:07:18,896 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:07:18,896 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:07:18,897 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:07:18,897 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:07:18,898 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:07:18,898 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:07:18,898 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:07:18,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:07:18,899 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:07:18,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:07:18,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:07:18,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:07:18,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:07:18,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:07:18,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:07:18,901 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:07:18,901 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:07:18,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:07:18,902 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:07:18,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:07:18,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:07:18,904 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:07:18,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:07:18,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:07:18,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:07:18,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:07:18,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:07:18,905 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:07:18,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:07:18,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:07:18,906 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:07:18,906 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:07:18,907 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_104a2de3-0c60-4948-a822-d78eef6a06c7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e293e64b1cdccf6f7dd8e0ea93ea165f8311c2d3 [2020-11-22 13:07:19,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:07:19,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:07:19,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:07:19,243 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:07:19,244 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:07:19,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2020-11-22 13:07:19,318 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/data/93c118726/18f6399c8e0f4c6eadf41eea06d9ae55/FLAGb02d52ee5 [2020-11-22 13:07:19,896 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:07:19,897 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2020-11-22 13:07:19,910 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/data/93c118726/18f6399c8e0f4c6eadf41eea06d9ae55/FLAGb02d52ee5 [2020-11-22 13:07:20,173 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/data/93c118726/18f6399c8e0f4c6eadf41eea06d9ae55 [2020-11-22 13:07:20,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:07:20,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:07:20,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:20,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:07:20,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:07:20,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:20" (1/1) ... [2020-11-22 13:07:20,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d1b88e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:20, skipping insertion in model container [2020-11-22 13:07:20,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:20" (1/1) ... [2020-11-22 13:07:20,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:07:20,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:20,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:20,702 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-22 13:07:20,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2abbf6ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:20, skipping insertion in model container [2020-11-22 13:07:20,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:20,704 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:07:20,707 INFO L168 Benchmark]: Toolchain (without parser) took 527.36 ms. Allocated memory is still 90.2 MB. Free memory was 60.2 MB in the beginning and 65.6 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:20,709 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 49.3 MB in the beginning and 49.2 MB in the end (delta: 34.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:07:20,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.84 ms. Allocated memory is still 90.2 MB. Free memory was 60.0 MB in the beginning and 65.6 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:20,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 49.3 MB in the beginning and 49.2 MB in the end (delta: 34.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 521.84 ms. Allocated memory is still 90.2 MB. Free memory was 60.0 MB in the beginning and 65.6 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 315]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:07:23,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:07:23,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:07:23,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:07:23,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:07:23,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:07:23,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:07:23,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:07:23,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:07:23,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:07:23,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:07:23,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:07:23,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:07:23,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:07:23,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:07:23,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:07:23,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:07:23,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:07:23,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:07:23,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:07:23,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:07:23,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:07:23,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:07:23,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:07:23,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:07:23,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:07:23,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:07:23,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:07:23,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:07:23,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:07:23,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:07:23,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:07:23,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:07:23,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:07:23,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:07:23,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:07:23,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:07:23,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:07:23,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:07:23,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:07:23,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:07:23,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:07:23,199 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:07:23,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:07:23,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:07:23,201 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:07:23,201 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:07:23,201 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:07:23,202 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:07:23,202 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:07:23,202 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:07:23,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:07:23,205 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:07:23,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:07:23,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:07:23,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:07:23,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:07:23,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:07:23,206 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:07:23,206 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:07:23,206 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:07:23,206 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:07:23,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:07:23,207 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:07:23,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:07:23,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:07:23,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:07:23,207 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:07:23,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:07:23,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:07:23,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:07:23,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:07:23,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:07:23,209 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:07:23,209 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:07:23,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:07:23,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:07:23,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:07:23,210 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_104a2de3-0c60-4948-a822-d78eef6a06c7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e293e64b1cdccf6f7dd8e0ea93ea165f8311c2d3 [2020-11-22 13:07:23,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:07:23,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:07:23,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:07:23,646 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:07:23,647 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:07:23,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2020-11-22 13:07:23,725 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/data/4daea16a7/0afb0a5ff19b431f89bca6ddec3fa910/FLAGc81b46c2e [2020-11-22 13:07:24,313 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:07:24,313 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2020-11-22 13:07:24,327 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/data/4daea16a7/0afb0a5ff19b431f89bca6ddec3fa910/FLAGc81b46c2e [2020-11-22 13:07:24,594 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/data/4daea16a7/0afb0a5ff19b431f89bca6ddec3fa910 [2020-11-22 13:07:24,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:07:24,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:07:24,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:24,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:07:24,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:07:24,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:24" (1/1) ... [2020-11-22 13:07:24,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4a9f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:24, skipping insertion in model container [2020-11-22 13:07:24,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:24" (1/1) ... [2020-11-22 13:07:24,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:07:24,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:24,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:25,029 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:07:25,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:25,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:25,196 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:07:25,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:25,363 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:07:25,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:25 WrapperNode [2020-11-22 13:07:25,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:25,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:25,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:07:25,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:07:25,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:25" (1/1) ... [2020-11-22 13:07:25,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:25" (1/1) ... [2020-11-22 13:07:25,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:25,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:07:25,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:07:25,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:07:25,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:25" (1/1) ... [2020-11-22 13:07:25,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:25" (1/1) ... [2020-11-22 13:07:25,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:25" (1/1) ... [2020-11-22 13:07:25,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:25" (1/1) ... [2020-11-22 13:07:25,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:25" (1/1) ... [2020-11-22 13:07:25,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:25" (1/1) ... [2020-11-22 13:07:25,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:25" (1/1) ... [2020-11-22 13:07:25,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:07:25,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:07:25,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:07:25,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:07:25,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:07:25,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:07:25,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:07:25,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:07:25,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:07:27,972 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:07:27,972 INFO L298 CfgBuilder]: Removed 112 assume(true) statements. [2020-11-22 13:07:27,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:27 BoogieIcfgContainer [2020-11-22 13:07:27,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:07:27,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:07:27,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:07:27,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:07:27,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:07:24" (1/3) ... [2020-11-22 13:07:27,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353fafc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:27, skipping insertion in model container [2020-11-22 13:07:27,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:25" (2/3) ... [2020-11-22 13:07:27,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353fafc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:27, skipping insertion in model container [2020-11-22 13:07:27,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:27" (3/3) ... [2020-11-22 13:07:27,987 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c [2020-11-22 13:07:27,998 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:07:28,002 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:07:28,013 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:07:28,048 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:07:28,048 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:07:28,048 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:07:28,049 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:07:28,049 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:07:28,049 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:07:28,049 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:07:28,049 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:07:28,064 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-11-22 13:07:28,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:07:28,070 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:28,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:28,071 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:28,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:28,078 INFO L82 PathProgramCache]: Analyzing trace with hash 785714734, now seen corresponding path program 1 times [2020-11-22 13:07:28,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:28,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730945388] [2020-11-22 13:07:28,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 13:07:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:28,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:07:28,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:28,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:28,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:28,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:28,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730945388] [2020-11-22 13:07:28,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:28,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:07:28,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129101334] [2020-11-22 13:07:28,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:07:28,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:28,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:07:28,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:07:28,358 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2020-11-22 13:07:28,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:28,382 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2020-11-22 13:07:28,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:07:28,384 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 13:07:28,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:28,393 INFO L225 Difference]: With dead ends: 151 [2020-11-22 13:07:28,394 INFO L226 Difference]: Without dead ends: 73 [2020-11-22 13:07:28,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:07:28,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-22 13:07:28,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-11-22 13:07:28,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-22 13:07:28,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2020-11-22 13:07:28,436 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 18 [2020-11-22 13:07:28,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:28,436 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-11-22 13:07:28,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:07:28,437 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2020-11-22 13:07:28,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:07:28,438 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:28,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:28,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:07:28,655 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:28,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:28,657 INFO L82 PathProgramCache]: Analyzing trace with hash -125316019, now seen corresponding path program 1 times [2020-11-22 13:07:28,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:28,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85708860] [2020-11-22 13:07:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 13:07:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:28,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:07:28,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:28,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:28,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:28,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85708860] [2020-11-22 13:07:28,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:28,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:07:28,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163063730] [2020-11-22 13:07:28,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:28,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:28,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:28,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:28,887 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand 4 states. [2020-11-22 13:07:28,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:28,900 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2020-11-22 13:07:28,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:07:28,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 13:07:28,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:28,902 INFO L225 Difference]: With dead ends: 73 [2020-11-22 13:07:28,903 INFO L226 Difference]: Without dead ends: 35 [2020-11-22 13:07:28,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:28,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-22 13:07:28,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-22 13:07:28,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-22 13:07:28,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-11-22 13:07:28,909 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2020-11-22 13:07:28,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:28,910 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-11-22 13:07:28,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:28,910 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-11-22 13:07:28,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:07:28,911 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:28,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:29,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:07:29,128 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:29,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:29,129 INFO L82 PathProgramCache]: Analyzing trace with hash -227571320, now seen corresponding path program 1 times [2020-11-22 13:07:29,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:29,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961906602] [2020-11-22 13:07:29,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 13:07:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:29,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:07:29,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:29,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:29,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:29,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961906602] [2020-11-22 13:07:29,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:29,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:07:29,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662479384] [2020-11-22 13:07:29,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:29,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:29,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:29,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:29,363 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 4 states. [2020-11-22 13:07:29,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:29,396 INFO L93 Difference]: Finished difference Result 118 states and 172 transitions. [2020-11-22 13:07:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:07:29,400 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 13:07:29,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:29,401 INFO L225 Difference]: With dead ends: 118 [2020-11-22 13:07:29,402 INFO L226 Difference]: Without dead ends: 89 [2020-11-22 13:07:29,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:29,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-22 13:07:29,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 56. [2020-11-22 13:07:29,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-22 13:07:29,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 81 transitions. [2020-11-22 13:07:29,414 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 81 transitions. Word has length 24 [2020-11-22 13:07:29,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:29,415 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 81 transitions. [2020-11-22 13:07:29,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:29,415 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 81 transitions. [2020-11-22 13:07:29,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 13:07:29,416 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:29,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:29,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:07:29,630 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:29,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:29,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1937535180, now seen corresponding path program 1 times [2020-11-22 13:07:29,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:29,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994027867] [2020-11-22 13:07:29,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 13:07:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:29,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:07:29,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:29,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:29,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:29,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:29,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994027867] [2020-11-22 13:07:29,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:29,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 13:07:29,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087752934] [2020-11-22 13:07:29,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:07:29,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:07:29,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:07:29,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:07:29,909 INFO L87 Difference]: Start difference. First operand 56 states and 81 transitions. Second operand 8 states. [2020-11-22 13:07:30,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:30,334 INFO L93 Difference]: Finished difference Result 570 states and 876 transitions. [2020-11-22 13:07:30,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 13:07:30,334 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-11-22 13:07:30,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:30,339 INFO L225 Difference]: With dead ends: 570 [2020-11-22 13:07:30,339 INFO L226 Difference]: Without dead ends: 520 [2020-11-22 13:07:30,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-22 13:07:30,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2020-11-22 13:07:30,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 142. [2020-11-22 13:07:30,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-22 13:07:30,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 205 transitions. [2020-11-22 13:07:30,382 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 205 transitions. Word has length 25 [2020-11-22 13:07:30,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:30,382 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 205 transitions. [2020-11-22 13:07:30,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:07:30,383 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 205 transitions. [2020-11-22 13:07:30,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 13:07:30,386 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:30,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:30,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:07:30,611 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:30,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:30,611 INFO L82 PathProgramCache]: Analyzing trace with hash -21773810, now seen corresponding path program 1 times [2020-11-22 13:07:30,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:07:30,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560403630] [2020-11-22 13:07:30,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 13:07:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:07:31,957 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:07:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:07:33,658 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:07:33,815 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:07:33,815 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:07:34,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:07:34,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:07:34 BoogieIcfgContainer [2020-11-22 13:07:34,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:07:34,148 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:07:34,148 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:07:34,148 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:07:34,149 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:27" (3/4) ... [2020-11-22 13:07:34,151 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:07:34,243 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_104a2de3-0c60-4948-a822-d78eef6a06c7/bin/utaipan/witness.graphml [2020-11-22 13:07:34,243 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:07:34,248 INFO L168 Benchmark]: Toolchain (without parser) took 9642.67 ms. Allocated memory was 58.7 MB in the beginning and 86.0 MB in the end (delta: 27.3 MB). Free memory was 35.8 MB in the beginning and 33.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:34,254 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 58.7 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:07:34,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.01 ms. Allocated memory is still 58.7 MB. Free memory was 35.6 MB in the beginning and 27.3 MB in the end (delta: 8.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:34,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.57 ms. Allocated memory is still 58.7 MB. Free memory was 27.2 MB in the beginning and 24.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:34,257 INFO L168 Benchmark]: Boogie Preprocessor took 69.29 ms. Allocated memory is still 58.7 MB. Free memory was 24.2 MB in the beginning and 21.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:34,260 INFO L168 Benchmark]: RCFGBuilder took 2434.23 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 21.9 MB in the beginning and 41.2 MB in the end (delta: -19.3 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:34,262 INFO L168 Benchmark]: TraceAbstraction took 6172.28 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 40.8 MB in the beginning and 44.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:34,263 INFO L168 Benchmark]: Witness Printer took 94.90 ms. Allocated memory is still 86.0 MB. Free memory was 44.5 MB in the beginning and 33.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:34,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 58.7 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 760.01 ms. Allocated memory is still 58.7 MB. Free memory was 35.6 MB in the beginning and 27.3 MB in the end (delta: 8.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.57 ms. Allocated memory is still 58.7 MB. Free memory was 27.2 MB in the beginning and 24.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.29 ms. Allocated memory is still 58.7 MB. Free memory was 24.2 MB in the beginning and 21.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2434.23 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 21.9 MB in the beginning and 41.2 MB in the end (delta: -19.3 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6172.28 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 40.8 MB in the beginning and 44.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * Witness Printer took 94.90 ms. Allocated memory is still 86.0 MB. Free memory was 44.5 MB in the beginning and 33.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L456] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L654] int waterLevel = 1; [L655] int methaneLevelCritical = 0; [L734] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L810] int retValue_acc ; [L811] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L903] int retValue_acc ; [L906] retValue_acc = 1 [L907] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] tmp = valid_product() [L819] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L221] int splverifierCounter ; [L222] int tmp ; [L223] int tmp___0 ; [L224] int tmp___1 ; [L225] int tmp___2 ; [L228] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L230] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L232] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L238] tmp = __VERIFIER_nondet_int() [L240] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L672] COND TRUE waterLevel < 2 [L673] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L248] tmp___0 = __VERIFIER_nondet_int() [L250] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L258] tmp___2 = __VERIFIER_nondet_int() [L260] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L59] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L66] COND TRUE \read(systemActive) [L88] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L91] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L835] int tmp ; [L836] int tmp___0 ; [L837] int tmp___1 ; [L693] int retValue_acc ; [L696] retValue_acc = methaneLevelCritical [L697] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] tmp = isMethaneLevelCritical() [L843] COND FALSE !(\read(tmp)) [L725] int retValue_acc ; [L728] retValue_acc = waterLevel [L729] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L847] tmp___0 = getWaterLevel() [L849] COND TRUE tmp___0 == 2 [L157] int retValue_acc ; [L160] retValue_acc = pumpRunning [L161] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L851] tmp___1 = isPumpRunning() [L853] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product15.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 282 SDtfs, 628 SDslu, 635 SDs, 0 SdLazy, 104 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 411 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 10339 SizeOfPredicates, 6 NumberOfNonLiveVariables, 790 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...