./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.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_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/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 43ef5600519005fc88dd599d15644e5bf72b4abd ...................................................................................................................................... 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_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/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 43ef5600519005fc88dd599d15644e5bf72b4abd .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:31:39,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:31:39,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:31:39,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:31:39,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:31:39,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:31:39,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:31:39,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:31:39,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:31:39,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:31:39,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:31:39,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:31:39,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:31:39,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:31:39,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:31:39,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:31:39,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:31:39,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:31:39,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:31:39,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:31:39,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:31:39,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:31:39,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:31:39,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:31:39,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:31:39,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:31:39,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:31:39,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:31:39,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:31:39,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:31:39,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:31:39,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:31:39,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:31:39,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:31:39,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:31:39,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:31:39,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:31:39,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:31:39,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:31:39,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:31:39,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:31:39,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:31:39,888 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:31:39,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:31:39,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:31:39,889 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:31:39,889 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:31:39,889 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:31:39,889 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:31:39,890 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:31:39,890 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:31:39,890 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:31:39,890 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:31:39,890 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:31:39,890 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:31:39,890 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:31:39,891 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:31:39,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:31:39,891 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:31:39,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:31:39,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:31:39,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:31:39,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:31:39,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:31:39,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:31:39,892 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:31:39,892 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:31:39,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:31:39,892 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:31:39,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:31:39,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:31:39,893 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:31:39,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:31:39,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:31:39,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:31:39,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:31:39,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:31:39,894 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:31:39,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:31:39,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:31:39,894 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:31:39,894 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:31:39,894 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_236fc73a-9d7c-49e2-9156-3e9aa8af055d/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 -> 43ef5600519005fc88dd599d15644e5bf72b4abd [2019-12-07 20:31:39,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:31:40,000 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:31:40,002 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:31:40,003 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:31:40,003 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:31:40,004 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2019-12-07 20:31:40,039 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/data/1bfab42e8/57e93256d9734242aab748892950e8b5/FLAGf2428d401 [2019-12-07 20:31:40,527 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:31:40,528 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2019-12-07 20:31:40,537 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/data/1bfab42e8/57e93256d9734242aab748892950e8b5/FLAGf2428d401 [2019-12-07 20:31:40,546 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/data/1bfab42e8/57e93256d9734242aab748892950e8b5 [2019-12-07 20:31:40,548 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:31:40,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:31:40,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:31:40,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:31:40,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:31:40,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:31:40" (1/1) ... [2019-12-07 20:31:40,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756435f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:40, skipping insertion in model container [2019-12-07 20:31:40,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:31:40" (1/1) ... [2019-12-07 20:31:40,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:31:40,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:31:40,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:31:40,822 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 20:31:40,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ce9f0f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:40, skipping insertion in model container [2019-12-07 20:31:40,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:31:40,823 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 20:31:40,825 INFO L168 Benchmark]: Toolchain (without parser) took 275.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:31:40,825 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 954.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:31:40,826 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:31:40,827 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 954.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 273.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -152.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 641]: 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 20:31:41,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:31:41,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:31:41,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:31:41,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:31:41,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:31:41,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:31:41,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:31:41,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:31:41,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:31:41,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:31:41,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:31:41,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:31:41,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:31:41,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:31:41,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:31:41,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:31:41,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:31:41,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:31:41,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:31:41,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:31:41,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:31:42,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:31:42,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:31:42,002 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:31:42,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:31:42,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:31:42,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:31:42,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:31:42,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:31:42,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:31:42,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:31:42,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:31:42,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:31:42,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:31:42,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:31:42,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:31:42,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:31:42,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:31:42,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:31:42,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:31:42,009 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:31:42,019 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:31:42,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:31:42,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:31:42,020 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:31:42,020 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:31:42,020 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:31:42,020 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:31:42,020 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:31:42,021 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:31:42,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:31:42,021 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:31:42,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:31:42,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:31:42,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:31:42,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:31:42,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:31:42,022 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:31:42,022 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:31:42,022 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:31:42,022 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:31:42,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:31:42,023 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:31:42,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:31:42,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:31:42,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:31:42,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:31:42,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:31:42,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:31:42,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:31:42,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:31:42,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:31:42,024 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:31:42,024 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:31:42,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:31:42,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:31:42,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:31:42,024 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_236fc73a-9d7c-49e2-9156-3e9aa8af055d/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 -> 43ef5600519005fc88dd599d15644e5bf72b4abd [2019-12-07 20:31:42,188 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:31:42,196 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:31:42,198 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:31:42,199 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:31:42,199 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:31:42,200 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2019-12-07 20:31:42,239 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/data/541a73f79/a495ff8549e64387b1bde3066cf6c144/FLAG442e34922 [2019-12-07 20:31:42,725 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:31:42,726 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2019-12-07 20:31:42,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/data/541a73f79/a495ff8549e64387b1bde3066cf6c144/FLAG442e34922 [2019-12-07 20:31:42,745 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/data/541a73f79/a495ff8549e64387b1bde3066cf6c144 [2019-12-07 20:31:42,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:31:42,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:31:42,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:31:42,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:31:42,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:31:42,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:31:42" (1/1) ... [2019-12-07 20:31:42,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e05d898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:42, skipping insertion in model container [2019-12-07 20:31:42,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:31:42" (1/1) ... [2019-12-07 20:31:42,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:31:42,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:31:42,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:31:43,008 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 20:31:43,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:31:43,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:31:43,055 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:31:43,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:31:43,116 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:31:43,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:43 WrapperNode [2019-12-07 20:31:43,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:31:43,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:31:43,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:31:43,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:31:43,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:43" (1/1) ... [2019-12-07 20:31:43,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:43" (1/1) ... [2019-12-07 20:31:43,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:31:43,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:31:43,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:31:43,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:31:43,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:43" (1/1) ... [2019-12-07 20:31:43,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:43" (1/1) ... [2019-12-07 20:31:43,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:43" (1/1) ... [2019-12-07 20:31:43,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:43" (1/1) ... [2019-12-07 20:31:43,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:43" (1/1) ... [2019-12-07 20:31:43,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:43" (1/1) ... [2019-12-07 20:31:43,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:43" (1/1) ... [2019-12-07 20:31:43,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:31:43,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:31:43,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:31:43,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:31:43,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/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 20:31:43,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:31:43,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 20:31:43,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:31:43,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:31:43,816 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:31:43,816 INFO L287 CfgBuilder]: Removed 204 assume(true) statements. [2019-12-07 20:31:43,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:31:43 BoogieIcfgContainer [2019-12-07 20:31:43,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:31:43,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:31:43,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:31:43,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:31:43,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:31:42" (1/3) ... [2019-12-07 20:31:43,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12be5e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:31:43, skipping insertion in model container [2019-12-07 20:31:43,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:31:43" (2/3) ... [2019-12-07 20:31:43,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12be5e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:31:43, skipping insertion in model container [2019-12-07 20:31:43,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:31:43" (3/3) ... [2019-12-07 20:31:43,822 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2019-12-07 20:31:43,829 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:31:43,834 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 20:31:43,842 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 20:31:43,860 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:31:43,860 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:31:43,860 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:31:43,860 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:31:43,860 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:31:43,860 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:31:43,860 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:31:43,860 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:31:43,873 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2019-12-07 20:31:43,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 20:31:43,878 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:43,879 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 20:31:43,879 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:43,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:43,883 INFO L82 PathProgramCache]: Analyzing trace with hash -839049995, now seen corresponding path program 1 times [2019-12-07 20:31:43,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:43,893 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269222307] [2019-12-07 20:31:43,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/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 20:31:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:44,029 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:31:44,033 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:44,043 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 20:31:44,043 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:44,047 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 20:31:44,048 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269222307] [2019-12-07 20:31:44,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:44,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:31:44,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772851754] [2019-12-07 20:31:44,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:31:44,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:44,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:31:44,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:31:44,062 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2019-12-07 20:31:44,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:44,086 INFO L93 Difference]: Finished difference Result 268 states and 401 transitions. [2019-12-07 20:31:44,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:31:44,087 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 20:31:44,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:44,096 INFO L225 Difference]: With dead ends: 268 [2019-12-07 20:31:44,096 INFO L226 Difference]: Without dead ends: 133 [2019-12-07 20:31:44,099 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 20:31:44,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-12-07 20:31:44,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-12-07 20:31:44,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-12-07 20:31:44,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2019-12-07 20:31:44,131 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 18 [2019-12-07 20:31:44,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:44,131 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2019-12-07 20:31:44,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:31:44,131 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2019-12-07 20:31:44,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 20:31:44,132 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:44,132 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 20:31:44,333 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:31:44,334 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:44,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:44,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1750080748, now seen corresponding path program 1 times [2019-12-07 20:31:44,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:44,337 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254487833] [2019-12-07 20:31:44,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/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 20:31:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:44,596 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:31:44,597 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:44,612 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 20:31:44,612 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:44,622 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 20:31:44,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254487833] [2019-12-07 20:31:44,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:44,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:31:44,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121522171] [2019-12-07 20:31:44,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:31:44,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:44,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:31:44,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:31:44,625 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand 4 states. [2019-12-07 20:31:44,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:44,640 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2019-12-07 20:31:44,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:31:44,641 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 20:31:44,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:44,642 INFO L225 Difference]: With dead ends: 133 [2019-12-07 20:31:44,642 INFO L226 Difference]: Without dead ends: 55 [2019-12-07 20:31:44,643 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 20:31:44,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-12-07 20:31:44,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-12-07 20:31:44,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-12-07 20:31:44,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2019-12-07 20:31:44,649 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19 [2019-12-07 20:31:44,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:44,649 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2019-12-07 20:31:44,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:31:44,650 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2019-12-07 20:31:44,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 20:31:44,651 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:44,651 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 20:31:44,851 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:31:44,852 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:44,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:44,853 INFO L82 PathProgramCache]: Analyzing trace with hash -980873092, now seen corresponding path program 1 times [2019-12-07 20:31:44,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:44,855 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034559580] [2019-12-07 20:31:44,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/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 20:31:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:45,039 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:31:45,041 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:45,049 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 20:31:45,050 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:45,056 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 20:31:45,056 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034559580] [2019-12-07 20:31:45,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:45,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:31:45,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628781776] [2019-12-07 20:31:45,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:31:45,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:45,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:31:45,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:31:45,058 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 4 states. [2019-12-07 20:31:45,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:45,106 INFO L93 Difference]: Finished difference Result 178 states and 262 transitions. [2019-12-07 20:31:45,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:31:45,107 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 20:31:45,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:45,108 INFO L225 Difference]: With dead ends: 178 [2019-12-07 20:31:45,109 INFO L226 Difference]: Without dead ends: 129 [2019-12-07 20:31:45,109 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 20:31:45,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-12-07 20:31:45,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 76. [2019-12-07 20:31:45,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-12-07 20:31:45,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 111 transitions. [2019-12-07 20:31:45,122 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 111 transitions. Word has length 24 [2019-12-07 20:31:45,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:45,123 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 111 transitions. [2019-12-07 20:31:45,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:31:45,123 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions. [2019-12-07 20:31:45,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 20:31:45,124 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:45,124 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] [2019-12-07 20:31:45,325 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:31:45,326 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:45,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:45,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1838136026, now seen corresponding path program 1 times [2019-12-07 20:31:45,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:45,330 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379464058] [2019-12-07 20:31:45,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/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 20:31:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:45,594 INFO L264 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:31:45,596 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:45,602 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 20:31:45,602 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:45,604 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 20:31:45,604 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379464058] [2019-12-07 20:31:45,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:45,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:31:45,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804393938] [2019-12-07 20:31:45,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:31:45,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:45,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:31:45,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:31:45,606 INFO L87 Difference]: Start difference. First operand 76 states and 111 transitions. Second operand 3 states. [2019-12-07 20:31:45,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:45,663 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions. [2019-12-07 20:31:45,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:31:45,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-12-07 20:31:45,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:45,665 INFO L225 Difference]: With dead ends: 169 [2019-12-07 20:31:45,665 INFO L226 Difference]: Without dead ends: 99 [2019-12-07 20:31:45,665 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 20:31:45,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-12-07 20:31:45,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2019-12-07 20:31:45,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-12-07 20:31:45,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 138 transitions. [2019-12-07 20:31:45,674 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 138 transitions. Word has length 26 [2019-12-07 20:31:45,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:45,674 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 138 transitions. [2019-12-07 20:31:45,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:31:45,675 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions. [2019-12-07 20:31:45,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 20:31:45,675 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:45,675 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 20:31:45,876 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 20:31:45,877 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:45,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:45,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1544213679, now seen corresponding path program 1 times [2019-12-07 20:31:45,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:45,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751254602] [2019-12-07 20:31:45,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/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 20:31:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:31:45,983 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:31:45,984 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:31:45,998 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 20:31:45,999 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:31:46,022 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 20:31:46,022 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751254602] [2019-12-07 20:31:46,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:31:46,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 20:31:46,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226380560] [2019-12-07 20:31:46,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 20:31:46,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:31:46,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 20:31:46,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 20:31:46,024 INFO L87 Difference]: Start difference. First operand 97 states and 138 transitions. Second operand 8 states. [2019-12-07 20:31:46,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:31:46,337 INFO L93 Difference]: Finished difference Result 1073 states and 1567 transitions. [2019-12-07 20:31:46,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 20:31:46,338 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 20:31:46,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:31:46,342 INFO L225 Difference]: With dead ends: 1073 [2019-12-07 20:31:46,342 INFO L226 Difference]: Without dead ends: 982 [2019-12-07 20:31:46,343 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2019-12-07 20:31:46,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2019-12-07 20:31:46,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 247. [2019-12-07 20:31:46,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2019-12-07 20:31:46,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2019-12-07 20:31:46,369 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 27 [2019-12-07 20:31:46,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:31:46,369 INFO L462 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2019-12-07 20:31:46,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 20:31:46,369 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2019-12-07 20:31:46,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 20:31:46,370 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:31:46,370 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 20:31:46,571 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 20:31:46,572 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:31:46,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:31:46,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1050489875, now seen corresponding path program 1 times [2019-12-07 20:31:46,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:31:46,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124436623] [2019-12-07 20:31:46,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/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 20:31:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:31:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:31:48,074 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:31:48,074 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:31:48,274 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 20:31:48,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:31:48 BoogieIcfgContainer [2019-12-07 20:31:48,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:31:48,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:31:48,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:31:48,341 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:31:48,341 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:31:43" (3/4) ... [2019-12-07 20:31:48,343 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:31:48,395 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_236fc73a-9d7c-49e2-9156-3e9aa8af055d/bin/utaipan/witness.graphml [2019-12-07 20:31:48,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:31:48,397 INFO L168 Benchmark]: Toolchain (without parser) took 5648.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.5 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 53.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:31:48,397 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 20:31:48,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -150.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:31:48,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.03 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 20:31:48,397 INFO L168 Benchmark]: Boogie Preprocessor took 33.48 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 20:31:48,398 INFO L168 Benchmark]: RCFGBuilder took 619.50 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: 88.9 MB). Peak memory consumption was 88.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:31:48,398 INFO L168 Benchmark]: TraceAbstraction took 4523.11 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 83.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -118.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:31:48,398 INFO L168 Benchmark]: Witness Printer took 54.46 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: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:31:48,400 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 368.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -150.0 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.03 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 33.48 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 619.50 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: 88.9 MB). Peak memory consumption was 88.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4523.11 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 83.4 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -118.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 54.46 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: 15.7 MB). Peak memory consumption was 15.7 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: [L129] int waterLevel = 1; [L130] int methaneLevelCritical = 0; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L447] int cleanupTimeShifts = 4; [L782] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L521] int retValue_acc ; [L522] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L528] tmp = valid_product() [L530] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L554] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L562] tmp = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L147] COND TRUE waterLevel < 2 [L148] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___2)) [L590] tmp___1 = __VERIFIER_nondet_int() [L592] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L427] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L434] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L236] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L243] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L168] int retValue_acc ; [L171] retValue_acc = methaneLevelCritical [L172] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L200] int retValue_acc ; [L203] retValue_acc = waterLevel [L204] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L360] int retValue_acc ; [L363] retValue_acc = pumpRunning [L364] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] tmp___1 = isPumpRunning() [L109] 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, 137 locations, 3 error locations. Result: UNSAFE, OverallTime: 4.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 558 SDtfs, 1340 SDslu, 1092 SDs, 0 SdLazy, 164 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred 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, 790 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 10826 SizeOfPredicates, 6 NumberOfNonLiveVariables, 927 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...