./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash deeb3c1689cccb41b32be052288e2f3a90dc0e8e ...................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash deeb3c1689cccb41b32be052288e2f3a90dc0e8e .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 11:26:57,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:26:57,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:26:57,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:26:57,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:26:57,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:26:57,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:26:57,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:26:57,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:26:57,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:26:57,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:26:57,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:26:57,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:26:57,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:26:57,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:26:57,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:26:57,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:26:57,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:26:57,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:26:57,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:26:57,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:26:57,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:26:57,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:26:57,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:26:57,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:26:57,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:26:57,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:26:57,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:26:57,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:26:57,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:26:57,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:26:57,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:26:57,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:26:57,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:26:57,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:26:57,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:26:57,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:26:57,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:26:57,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:26:57,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:26:57,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:26:57,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 11:26:57,884 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:26:57,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:26:57,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:26:57,885 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:26:57,885 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:26:57,885 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:26:57,885 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 11:26:57,885 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:26:57,885 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:26:57,885 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 11:26:57,885 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 11:26:57,885 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:26:57,886 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 11:26:57,886 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 11:26:57,886 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 11:26:57,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:26:57,886 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:26:57,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:26:57,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:26:57,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:26:57,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:26:57,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:26:57,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:26:57,887 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:26:57,887 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:26:57,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:26:57,887 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:26:57,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:26:57,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:26:57,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:26:57,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:26:57,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:26:57,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:26:57,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:26:57,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:26:57,889 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 11:26:57,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:26:57,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:26:57,889 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:26:57,889 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:26:57,889 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> deeb3c1689cccb41b32be052288e2f3a90dc0e8e [2019-12-07 11:26:57,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:26:57,998 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:26:58,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:26:58,002 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:26:58,002 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:26:58,003 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2019-12-07 11:26:58,043 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/data/7e9c6a8b0/4635b403be424ba585f067fb98aee33b/FLAG004672428 [2019-12-07 11:26:58,487 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:26:58,488 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2019-12-07 11:26:58,496 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/data/7e9c6a8b0/4635b403be424ba585f067fb98aee33b/FLAG004672428 [2019-12-07 11:26:58,505 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/data/7e9c6a8b0/4635b403be424ba585f067fb98aee33b [2019-12-07 11:26:58,506 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:26:58,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:26:58,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:26:58,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:26:58,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:26:58,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:26:58" (1/1) ... [2019-12-07 11:26:58,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7762f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:26:58, skipping insertion in model container [2019-12-07 11:26:58,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:26:58" (1/1) ... [2019-12-07 11:26:58,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:26:58,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:26:58,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:26:58,787 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 11:26:58,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7d5aed07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:26:58, skipping insertion in model container [2019-12-07 11:26:58,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:26:58,788 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 11:26:58,789 INFO L168 Benchmark]: Toolchain (without parser) took 281.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -139.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:26:58,790 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:26:58,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -144.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:26:58,791 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 279.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -144.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 77]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 11:26:59,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:26:59,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:26:59,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:26:59,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:26:59,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:26:59,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:26:59,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:26:59,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:26:59,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:26:59,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:26:59,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:26:59,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:26:59,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:26:59,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:26:59,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:26:59,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:26:59,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:26:59,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:26:59,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:26:59,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:26:59,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:26:59,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:26:59,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:26:59,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:26:59,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:26:59,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:26:59,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:26:59,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:26:59,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:26:59,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:26:59,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:26:59,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:26:59,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:26:59,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:26:59,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:26:59,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:26:59,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:26:59,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:26:59,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:26:59,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:26:59,961 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 11:26:59,975 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:26:59,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:26:59,975 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:26:59,976 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:26:59,976 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:26:59,976 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:26:59,976 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:26:59,976 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:26:59,977 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:26:59,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:26:59,977 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:26:59,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:26:59,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:26:59,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:26:59,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:26:59,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:26:59,978 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:26:59,978 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:26:59,978 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:26:59,979 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:26:59,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:26:59,979 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:26:59,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:26:59,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:26:59,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:26:59,979 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:26:59,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:26:59,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:26:59,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:26:59,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:26:59,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:26:59,980 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 11:26:59,980 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:26:59,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:26:59,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:26:59,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:26:59,981 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> deeb3c1689cccb41b32be052288e2f3a90dc0e8e [2019-12-07 11:27:00,144 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:27:00,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:27:00,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:27:00,155 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:27:00,155 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:27:00,155 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2019-12-07 11:27:00,192 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/data/d37fa627e/e45d2ee4f9944ec7aeaf22ba78af46d6/FLAG8ad9f8f3c [2019-12-07 11:27:00,581 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:27:00,582 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2019-12-07 11:27:00,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/data/d37fa627e/e45d2ee4f9944ec7aeaf22ba78af46d6/FLAG8ad9f8f3c [2019-12-07 11:27:00,600 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/data/d37fa627e/e45d2ee4f9944ec7aeaf22ba78af46d6 [2019-12-07 11:27:00,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:27:00,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:27:00,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:27:00,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:27:00,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:27:00,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:27:00" (1/1) ... [2019-12-07 11:27:00,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15085b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:00, skipping insertion in model container [2019-12-07 11:27:00,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:27:00" (1/1) ... [2019-12-07 11:27:00,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:27:00,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:27:00,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:27:00,874 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 11:27:00,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:27:00,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:27:00,922 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:27:00,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:27:00,979 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:27:00,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:00 WrapperNode [2019-12-07 11:27:00,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:27:00,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:27:00,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:27:00,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:27:00,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:00" (1/1) ... [2019-12-07 11:27:00,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:00" (1/1) ... [2019-12-07 11:27:01,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:27:01,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:27:01,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:27:01,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:27:01,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:00" (1/1) ... [2019-12-07 11:27:01,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:00" (1/1) ... [2019-12-07 11:27:01,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:00" (1/1) ... [2019-12-07 11:27:01,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:00" (1/1) ... [2019-12-07 11:27:01,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:00" (1/1) ... [2019-12-07 11:27:01,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:00" (1/1) ... [2019-12-07 11:27:01,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:00" (1/1) ... [2019-12-07 11:27:01,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:27:01,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:27:01,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:27:01,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:27:01,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:27:01,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:27:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 11:27:01,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:27:01,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:27:01,567 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:27:01,567 INFO L287 CfgBuilder]: Removed 108 assume(true) statements. [2019-12-07 11:27:01,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:27:01 BoogieIcfgContainer [2019-12-07 11:27:01,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:27:01,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:27:01,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:27:01,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:27:01,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:27:00" (1/3) ... [2019-12-07 11:27:01,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2393ab84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:27:01, skipping insertion in model container [2019-12-07 11:27:01,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:00" (2/3) ... [2019-12-07 11:27:01,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2393ab84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:27:01, skipping insertion in model container [2019-12-07 11:27:01,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:27:01" (3/3) ... [2019-12-07 11:27:01,576 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2019-12-07 11:27:01,585 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:27:01,591 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 11:27:01,601 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 11:27:01,616 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:27:01,616 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:27:01,616 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:27:01,617 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:27:01,617 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:27:01,617 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:27:01,617 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:27:01,617 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:27:01,628 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-12-07 11:27:01,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 11:27:01,632 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:27:01,633 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:27:01,633 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:27:01,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:27:01,637 INFO L82 PathProgramCache]: Analyzing trace with hash -386332649, now seen corresponding path program 1 times [2019-12-07 11:27:01,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:27:01,645 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825349021] [2019-12-07 11:27:01,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 11:27:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:27:01,774 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 11:27:01,778 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:27:01,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:27:01,788 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:27:01,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:27:01,793 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825349021] [2019-12-07 11:27:01,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:27:01,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:27:01,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172143021] [2019-12-07 11:27:01,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:27:01,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:27:01,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:27:01,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:27:01,808 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2019-12-07 11:27:01,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:27:01,827 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2019-12-07 11:27:01,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:27:01,828 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 11:27:01,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:27:01,836 INFO L225 Difference]: With dead ends: 166 [2019-12-07 11:27:01,836 INFO L226 Difference]: Without dead ends: 82 [2019-12-07 11:27:01,839 INFO L630 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 [2019-12-07 11:27:01,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-12-07 11:27:01,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-12-07 11:27:01,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-12-07 11:27:01,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2019-12-07 11:27:01,868 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2019-12-07 11:27:01,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:27:01,868 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2019-12-07 11:27:01,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:27:01,868 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2019-12-07 11:27:01,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 11:27:01,869 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:27:01,869 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:27:02,070 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:27:02,070 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:27:02,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:27:02,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1847726980, now seen corresponding path program 1 times [2019-12-07 11:27:02,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:27:02,072 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561778993] [2019-12-07 11:27:02,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 11:27:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:27:02,268 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:27:02,270 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:27:02,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:27:02,283 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:27:02,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:27:02,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561778993] [2019-12-07 11:27:02,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:27:02,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:27:02,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215551656] [2019-12-07 11:27:02,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:27:02,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:27:02,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:27:02,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:27:02,295 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand 4 states. [2019-12-07 11:27:02,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:27:02,309 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2019-12-07 11:27:02,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:27:02,310 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 11:27:02,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:27:02,310 INFO L225 Difference]: With dead ends: 82 [2019-12-07 11:27:02,311 INFO L226 Difference]: Without dead ends: 38 [2019-12-07 11:27:02,312 INFO L630 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 [2019-12-07 11:27:02,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-12-07 11:27:02,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-12-07 11:27:02,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-12-07 11:27:02,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2019-12-07 11:27:02,317 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2019-12-07 11:27:02,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:27:02,317 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2019-12-07 11:27:02,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:27:02,318 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2019-12-07 11:27:02,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 11:27:02,319 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:27:02,319 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:27:02,519 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:27:02,520 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:27:02,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:27:02,520 INFO L82 PathProgramCache]: Analyzing trace with hash 2067739700, now seen corresponding path program 1 times [2019-12-07 11:27:02,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:27:02,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186666120] [2019-12-07 11:27:02,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 11:27:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:27:02,715 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:27:02,717 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:27:02,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:27:02,724 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:27:02,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:27:02,731 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186666120] [2019-12-07 11:27:02,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:27:02,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:27:02,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528966613] [2019-12-07 11:27:02,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:27:02,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:27:02,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:27:02,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:27:02,732 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 4 states. [2019-12-07 11:27:02,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:27:02,792 INFO L93 Difference]: Finished difference Result 127 states and 187 transitions. [2019-12-07 11:27:02,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:27:02,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 11:27:02,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:27:02,794 INFO L225 Difference]: With dead ends: 127 [2019-12-07 11:27:02,794 INFO L226 Difference]: Without dead ends: 95 [2019-12-07 11:27:02,795 INFO L630 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 [2019-12-07 11:27:02,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-12-07 11:27:02,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 59. [2019-12-07 11:27:02,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-12-07 11:27:02,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2019-12-07 11:27:02,806 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 24 [2019-12-07 11:27:02,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:27:02,806 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2019-12-07 11:27:02,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:27:02,807 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2019-12-07 11:27:02,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 11:27:02,808 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:27:02,808 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:27:03,008 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 11:27:03,009 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:27:03,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:27:03,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1859072455, now seen corresponding path program 1 times [2019-12-07 11:27:03,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:27:03,011 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482459117] [2019-12-07 11:27:03,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 11:27:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:27:03,169 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:27:03,170 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:27:03,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:27:03,175 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:27:03,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:27:03,178 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482459117] [2019-12-07 11:27:03,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:27:03,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 11:27:03,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534707845] [2019-12-07 11:27:03,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 11:27:03,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:27:03,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:27:03,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:27:03,179 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand 3 states. [2019-12-07 11:27:03,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:27:03,227 INFO L93 Difference]: Finished difference Result 135 states and 199 transitions. [2019-12-07 11:27:03,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:27:03,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 11:27:03,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:27:03,229 INFO L225 Difference]: With dead ends: 135 [2019-12-07 11:27:03,229 INFO L226 Difference]: Without dead ends: 82 [2019-12-07 11:27:03,230 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:27:03,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-12-07 11:27:03,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2019-12-07 11:27:03,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-12-07 11:27:03,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2019-12-07 11:27:03,240 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 25 [2019-12-07 11:27:03,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:27:03,241 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2019-12-07 11:27:03,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 11:27:03,241 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2019-12-07 11:27:03,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 11:27:03,242 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:27:03,242 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:27:03,444 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 11:27:03,445 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:27:03,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:27:03,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1504399113, now seen corresponding path program 1 times [2019-12-07 11:27:03,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:27:03,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408065570] [2019-12-07 11:27:03,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 11:27:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:27:03,604 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:27:03,605 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:27:03,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:27:03,621 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:27:03,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:27:03,644 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408065570] [2019-12-07 11:27:03,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:27:03,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 11:27:03,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082012087] [2019-12-07 11:27:03,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 11:27:03,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:27:03,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 11:27:03,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:27:03,646 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand 8 states. [2019-12-07 11:27:03,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:27:03,954 INFO L93 Difference]: Finished difference Result 840 states and 1240 transitions. [2019-12-07 11:27:03,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 11:27:03,955 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 11:27:03,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:27:03,959 INFO L225 Difference]: With dead ends: 840 [2019-12-07 11:27:03,959 INFO L226 Difference]: Without dead ends: 766 [2019-12-07 11:27:03,960 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 11:27:03,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2019-12-07 11:27:03,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 209. [2019-12-07 11:27:04,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2019-12-07 11:27:04,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 294 transitions. [2019-12-07 11:27:04,001 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 294 transitions. Word has length 27 [2019-12-07 11:27:04,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:27:04,001 INFO L462 AbstractCegarLoop]: Abstraction has 209 states and 294 transitions. [2019-12-07 11:27:04,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 11:27:04,002 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 294 transitions. [2019-12-07 11:27:04,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 11:27:04,003 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:27:04,003 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:27:04,204 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 11:27:04,204 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:27:04,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:27:04,205 INFO L82 PathProgramCache]: Analyzing trace with hash -195864629, now seen corresponding path program 1 times [2019-12-07 11:27:04,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:27:04,206 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143638666] [2019-12-07 11:27:04,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 11:27:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:27:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:27:06,168 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 11:27:06,168 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:27:06,368 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 11:27:06,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:27:06 BoogieIcfgContainer [2019-12-07 11:27:06,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:27:06,466 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:27:06,466 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:27:06,466 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:27:06,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:27:01" (3/4) ... [2019-12-07 11:27:06,468 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 11:27:06,533 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f0ed9d04-9651-4ec5-96ca-76e5da1f49f0/bin/utaipan/witness.graphml [2019-12-07 11:27:06,533 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:27:06,535 INFO L168 Benchmark]: Toolchain (without parser) took 5931.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.8 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -178.7 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:27:06,535 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:27:06,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -155.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:27:06,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:27:06,535 INFO L168 Benchmark]: Boogie Preprocessor took 27.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:27:06,536 INFO L168 Benchmark]: RCFGBuilder took 520.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:27:06,536 INFO L168 Benchmark]: TraceAbstraction took 4895.64 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -119.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:27:06,536 INFO L168 Benchmark]: Witness Printer took 67.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:27:06,537 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 376.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -155.8 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 520.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4895.64 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -119.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 67.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L675] int waterLevel = 1; [L676] int methaneLevelCritical = 0; [L769] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L845] int retValue_acc ; [L846] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L894] int retValue_acc ; [L897] retValue_acc = 1 [L898] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L852] tmp = valid_product() [L854] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L615] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L617] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L623] tmp = __VERIFIER_nondet_int() [L625] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L693] COND TRUE waterLevel < 2 [L694] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L633] tmp___0 = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___2)) [L651] tmp___1 = __VERIFIER_nondet_int() [L653] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L582] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L589] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L434] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L441] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L904] int tmp ; [L905] int tmp___0 ; [L906] int tmp___1 ; [L714] int retValue_acc ; [L717] retValue_acc = methaneLevelCritical [L718] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L910] tmp = isMethaneLevelCritical() [L912] COND FALSE !(\read(tmp)) [L746] int retValue_acc ; [L749] retValue_acc = waterLevel [L750] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L916] tmp___0 = getWaterLevel() [L918] COND TRUE tmp___0 == 2 [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L920] tmp___1 = isPumpRunning() [L922] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L44] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 86 locations, 3 error locations. Result: UNSAFE, OverallTime: 4.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 364 SDtfs, 769 SDslu, 792 SDs, 0 SdLazy, 149 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=5, 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, 5 MinimizatonAttempts, 595 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 10620 SizeOfPredicates, 6 NumberOfNonLiveVariables, 926 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...