./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.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_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/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 525453629ce87b69ed1d4100e13fdb9e0c8a872a ...................................................................................................................................... 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_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/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 525453629ce87b69ed1d4100e13fdb9e0c8a872a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 12:44:14,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:44:14,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:44:14,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:44:14,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:44:14,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:44:14,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:44:14,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:44:14,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:44:14,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:44:14,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:44:14,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:44:14,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:44:14,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:44:14,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:44:14,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:44:14,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:44:14,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:44:14,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:44:14,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:44:14,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:44:14,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:44:14,687 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:44:14,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:44:14,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:44:14,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:44:14,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:44:14,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:44:14,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:44:14,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:44:14,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:44:14,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:44:14,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:44:14,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:44:14,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:44:14,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:44:14,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:44:14,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:44:14,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:44:14,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:44:14,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:44:14,696 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 12:44:14,709 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:44:14,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:44:14,710 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:44:14,710 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:44:14,710 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:44:14,710 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:44:14,711 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:44:14,711 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:44:14,711 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:44:14,711 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:44:14,711 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:44:14,711 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:44:14,711 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:44:14,711 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:44:14,712 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:44:14,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:44:14,712 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:44:14,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:44:14,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:44:14,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:44:14,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:44:14,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:44:14,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:44:14,713 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:44:14,713 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:44:14,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:44:14,713 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:44:14,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:44:14,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:44:14,714 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:44:14,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:44:14,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:44:14,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:44:14,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:44:14,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:44:14,714 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:44:14,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:44:14,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:44:14,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:44:14,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:44:14,715 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_27d94f4f-0406-437a-bdd8-c3982526b91a/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 -> 525453629ce87b69ed1d4100e13fdb9e0c8a872a [2019-12-07 12:44:14,811 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:44:14,819 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:44:14,821 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:44:14,822 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:44:14,823 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:44:14,823 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2019-12-07 12:44:14,859 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/data/402d51b83/50bac375ffb94cb0a9c9ecf04df291e4/FLAGdd26b648a [2019-12-07 12:44:15,310 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:44:15,311 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2019-12-07 12:44:15,320 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/data/402d51b83/50bac375ffb94cb0a9c9ecf04df291e4/FLAGdd26b648a [2019-12-07 12:44:15,329 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/data/402d51b83/50bac375ffb94cb0a9c9ecf04df291e4 [2019-12-07 12:44:15,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:44:15,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:44:15,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:44:15,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:44:15,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:44:15,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:44:15" (1/1) ... [2019-12-07 12:44:15,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@881d7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:15, skipping insertion in model container [2019-12-07 12:44:15,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:44:15" (1/1) ... [2019-12-07 12:44:15,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:44:15,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:44:15,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:44:15,589 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 12:44:15,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5244a5c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:15, skipping insertion in model container [2019-12-07 12:44:15,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:44:15,590 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 12:44:15,592 INFO L168 Benchmark]: Toolchain (without parser) took 259.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -158.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:15,592 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:44:15,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:15,594 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 257.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -164.0 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: 172]: 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 12:44:16,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:44:16,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:44:16,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:44:16,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:44:16,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:44:16,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:44:16,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:44:16,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:44:16,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:44:16,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:44:16,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:44:16,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:44:16,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:44:16,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:44:16,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:44:16,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:44:16,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:44:16,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:44:16,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:44:16,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:44:16,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:44:16,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:44:16,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:44:16,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:44:16,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:44:16,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:44:16,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:44:16,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:44:16,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:44:16,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:44:16,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:44:16,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:44:16,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:44:16,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:44:16,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:44:16,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:44:16,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:44:16,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:44:16,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:44:16,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:44:16,735 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 12:44:16,745 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:44:16,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:44:16,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:44:16,746 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:44:16,747 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:44:16,747 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:44:16,747 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:44:16,747 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:44:16,747 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:44:16,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:44:16,748 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:44:16,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:44:16,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:44:16,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:44:16,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:44:16,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:44:16,748 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:44:16,749 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:44:16,749 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:44:16,749 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:44:16,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:44:16,749 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:44:16,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:44:16,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:44:16,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:44:16,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:44:16,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:44:16,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:44:16,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:44:16,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:44:16,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:44:16,750 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 12:44:16,750 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:44:16,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:44:16,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:44:16,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:44:16,751 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_27d94f4f-0406-437a-bdd8-c3982526b91a/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 -> 525453629ce87b69ed1d4100e13fdb9e0c8a872a [2019-12-07 12:44:16,914 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:44:16,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:44:16,924 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:44:16,925 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:44:16,926 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:44:16,926 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2019-12-07 12:44:16,964 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/data/58ed80f21/d909678caeb24260b35b8e728f9cb5b0/FLAGe0c213101 [2019-12-07 12:44:17,435 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:44:17,435 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2019-12-07 12:44:17,444 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/data/58ed80f21/d909678caeb24260b35b8e728f9cb5b0/FLAGe0c213101 [2019-12-07 12:44:17,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/data/58ed80f21/d909678caeb24260b35b8e728f9cb5b0 [2019-12-07 12:44:17,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:44:17,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:44:17,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:44:17,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:44:17,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:44:17,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:44:17" (1/1) ... [2019-12-07 12:44:17,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7afbba0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:17, skipping insertion in model container [2019-12-07 12:44:17,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:44:17" (1/1) ... [2019-12-07 12:44:17,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:44:17,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:44:18,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:44:18,224 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 12:44:18,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:44:18,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:44:18,290 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:44:18,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:44:18,372 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:44:18,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:18 WrapperNode [2019-12-07 12:44:18,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:44:18,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:44:18,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:44:18,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:44:18,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:18" (1/1) ... [2019-12-07 12:44:18,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:18" (1/1) ... [2019-12-07 12:44:18,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:44:18,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:44:18,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:44:18,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:44:18,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:18" (1/1) ... [2019-12-07 12:44:18,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:18" (1/1) ... [2019-12-07 12:44:18,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:18" (1/1) ... [2019-12-07 12:44:18,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:18" (1/1) ... [2019-12-07 12:44:18,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:18" (1/1) ... [2019-12-07 12:44:18,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:18" (1/1) ... [2019-12-07 12:44:18,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:18" (1/1) ... [2019-12-07 12:44:18,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:44:18,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:44:18,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:44:18,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:44:18,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/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 12:44:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:44:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 12:44:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:44:18,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:44:19,223 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:44:19,223 INFO L287 CfgBuilder]: Removed 288 assume(true) statements. [2019-12-07 12:44:19,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:44:19 BoogieIcfgContainer [2019-12-07 12:44:19,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:44:19,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:44:19,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:44:19,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:44:19,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:44:17" (1/3) ... [2019-12-07 12:44:19,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2f1a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:44:19, skipping insertion in model container [2019-12-07 12:44:19,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:44:18" (2/3) ... [2019-12-07 12:44:19,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2f1a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:44:19, skipping insertion in model container [2019-12-07 12:44:19,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:44:19" (3/3) ... [2019-12-07 12:44:19,229 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2019-12-07 12:44:19,236 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:44:19,241 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 12:44:19,249 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 12:44:19,265 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:44:19,265 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:44:19,266 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:44:19,266 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:44:19,266 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:44:19,266 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:44:19,266 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:44:19,266 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:44:19,280 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2019-12-07 12:44:19,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 12:44:19,285 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:19,285 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 12:44:19,286 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:19,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:19,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1618500051, now seen corresponding path program 1 times [2019-12-07 12:44:19,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:19,298 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311218359] [2019-12-07 12:44:19,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/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 12:44:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:19,433 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 12:44:19,437 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:19,448 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 12:44:19,448 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:19,452 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 12:44:19,453 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311218359] [2019-12-07 12:44:19,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:44:19,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 12:44:19,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477664067] [2019-12-07 12:44:19,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 12:44:19,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:44:19,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 12:44:19,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:44:19,469 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2019-12-07 12:44:19,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:44:19,499 INFO L93 Difference]: Finished difference Result 388 states and 593 transitions. [2019-12-07 12:44:19,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 12:44:19,500 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 12:44:19,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:44:19,509 INFO L225 Difference]: With dead ends: 388 [2019-12-07 12:44:19,510 INFO L226 Difference]: Without dead ends: 193 [2019-12-07 12:44:19,513 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 12:44:19,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-12-07 12:44:19,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2019-12-07 12:44:19,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-12-07 12:44:19,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions. [2019-12-07 12:44:19,549 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18 [2019-12-07 12:44:19,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:44:19,550 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 288 transitions. [2019-12-07 12:44:19,550 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 12:44:19,550 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions. [2019-12-07 12:44:19,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 12:44:19,551 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:19,551 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 12:44:19,752 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:44:19,752 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:19,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:19,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1765436492, now seen corresponding path program 1 times [2019-12-07 12:44:19,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:19,755 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [143334229] [2019-12-07 12:44:19,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/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 12:44:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:19,959 INFO L264 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:44:19,961 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:19,976 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 12:44:19,977 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:19,985 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 12:44:19,985 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [143334229] [2019-12-07 12:44:19,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:44:19,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 12:44:19,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244515581] [2019-12-07 12:44:19,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:44:19,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:44:19,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:44:19,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:44:19,989 INFO L87 Difference]: Start difference. First operand 193 states and 288 transitions. Second operand 4 states. [2019-12-07 12:44:20,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:44:20,007 INFO L93 Difference]: Finished difference Result 193 states and 288 transitions. [2019-12-07 12:44:20,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:44:20,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 12:44:20,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:44:20,009 INFO L225 Difference]: With dead ends: 193 [2019-12-07 12:44:20,009 INFO L226 Difference]: Without dead ends: 75 [2019-12-07 12:44:20,011 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 12:44:20,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-12-07 12:44:20,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2019-12-07 12:44:20,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-12-07 12:44:20,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2019-12-07 12:44:20,018 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19 [2019-12-07 12:44:20,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:44:20,019 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2019-12-07 12:44:20,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:44:20,019 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2019-12-07 12:44:20,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 12:44:20,020 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:20,020 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 12:44:20,221 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 12:44:20,221 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:20,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:20,221 INFO L82 PathProgramCache]: Analyzing trace with hash 134472408, now seen corresponding path program 1 times [2019-12-07 12:44:20,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:20,222 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666074125] [2019-12-07 12:44:20,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/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 12:44:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:20,343 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:44:20,344 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:20,352 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 12:44:20,352 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:20,358 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 12:44:20,358 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [666074125] [2019-12-07 12:44:20,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:44:20,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 12:44:20,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851289726] [2019-12-07 12:44:20,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:44:20,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:44:20,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:44:20,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:44:20,359 INFO L87 Difference]: Start difference. First operand 75 states and 111 transitions. Second operand 4 states. [2019-12-07 12:44:20,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:44:20,413 INFO L93 Difference]: Finished difference Result 238 states and 358 transitions. [2019-12-07 12:44:20,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 12:44:20,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 12:44:20,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:44:20,415 INFO L225 Difference]: With dead ends: 238 [2019-12-07 12:44:20,415 INFO L226 Difference]: Without dead ends: 169 [2019-12-07 12:44:20,415 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 12:44:20,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2019-12-07 12:44:20,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 96. [2019-12-07 12:44:20,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-12-07 12:44:20,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 143 transitions. [2019-12-07 12:44:20,425 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 143 transitions. Word has length 24 [2019-12-07 12:44:20,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:44:20,425 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 143 transitions. [2019-12-07 12:44:20,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:44:20,425 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions. [2019-12-07 12:44:20,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 12:44:20,426 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:20,426 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 12:44:20,627 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 12:44:20,628 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:20,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:20,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1119046690, now seen corresponding path program 1 times [2019-12-07 12:44:20,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:20,629 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189231249] [2019-12-07 12:44:20,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/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 12:44:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:20,818 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:44:20,819 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:20,824 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 12:44:20,824 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:20,826 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 12:44:20,826 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189231249] [2019-12-07 12:44:20,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:44:20,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 12:44:20,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299700182] [2019-12-07 12:44:20,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 12:44:20,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:44:20,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:44:20,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:44:20,827 INFO L87 Difference]: Start difference. First operand 96 states and 143 transitions. Second operand 3 states. [2019-12-07 12:44:20,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:44:20,889 INFO L93 Difference]: Finished difference Result 197 states and 295 transitions. [2019-12-07 12:44:20,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:44:20,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-12-07 12:44:20,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:44:20,891 INFO L225 Difference]: With dead ends: 197 [2019-12-07 12:44:20,891 INFO L226 Difference]: Without dead ends: 107 [2019-12-07 12:44:20,892 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 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 12:44:20,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-12-07 12:44:20,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2019-12-07 12:44:20,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-12-07 12:44:20,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions. [2019-12-07 12:44:20,902 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 27 [2019-12-07 12:44:20,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:44:20,902 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 150 transitions. [2019-12-07 12:44:20,902 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 12:44:20,902 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions. [2019-12-07 12:44:20,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 12:44:20,903 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:20,903 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 12:44:21,104 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 12:44:21,104 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:21,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:21,105 INFO L82 PathProgramCache]: Analyzing trace with hash -428868179, now seen corresponding path program 1 times [2019-12-07 12:44:21,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:21,106 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837825203] [2019-12-07 12:44:21,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/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 12:44:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:44:21,235 INFO L264 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 12:44:21,237 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:44:21,252 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 12:44:21,252 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:44:21,277 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 12:44:21,277 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837825203] [2019-12-07 12:44:21,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:44:21,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 12:44:21,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787595343] [2019-12-07 12:44:21,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 12:44:21,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 12:44:21,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 12:44:21,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 12:44:21,278 INFO L87 Difference]: Start difference. First operand 105 states and 150 transitions. Second operand 8 states. [2019-12-07 12:44:21,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:44:21,654 INFO L93 Difference]: Finished difference Result 1171 states and 1714 transitions. [2019-12-07 12:44:21,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 12:44:21,655 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-12-07 12:44:21,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:44:21,660 INFO L225 Difference]: With dead ends: 1171 [2019-12-07 12:44:21,660 INFO L226 Difference]: Without dead ends: 1072 [2019-12-07 12:44:21,660 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 12:44:21,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2019-12-07 12:44:21,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 261. [2019-12-07 12:44:21,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2019-12-07 12:44:21,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 368 transitions. [2019-12-07 12:44:21,685 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 368 transitions. Word has length 27 [2019-12-07 12:44:21,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:44:21,685 INFO L462 AbstractCegarLoop]: Abstraction has 261 states and 368 transitions. [2019-12-07 12:44:21,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 12:44:21,685 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 368 transitions. [2019-12-07 12:44:21,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 12:44:21,686 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:44:21,686 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 12:44:21,887 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 12:44:21,888 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:44:21,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:44:21,888 INFO L82 PathProgramCache]: Analyzing trace with hash -2129131921, now seen corresponding path program 1 times [2019-12-07 12:44:21,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 12:44:21,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223544957] [2019-12-07 12:44:21,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/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 12:44:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:44:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:44:23,064 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 12:44:23,064 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:44:23,264 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 12:44:23,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:44:23 BoogieIcfgContainer [2019-12-07 12:44:23,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:44:23,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:44:23,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:44:23,342 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:44:23,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:44:19" (3/4) ... [2019-12-07 12:44:23,344 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 12:44:23,396 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_27d94f4f-0406-437a-bdd8-c3982526b91a/bin/utaipan/witness.graphml [2019-12-07 12:44:23,396 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:44:23,397 INFO L168 Benchmark]: Toolchain (without parser) took 5447.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.9 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -116.0 MB). Peak memory consumption was 85.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:23,398 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 12:44:23,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -138.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:23,398 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:23,398 INFO L168 Benchmark]: Boogie Preprocessor took 42.68 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:44:23,399 INFO L168 Benchmark]: RCFGBuilder took 746.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 986.7 MB in the end (delta: 90.5 MB). Peak memory consumption was 90.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:23,399 INFO L168 Benchmark]: TraceAbstraction took 4116.93 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 81.3 MB). Free memory was 986.7 MB in the beginning and 1.1 GB in the end (delta: -87.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:44:23,399 INFO L168 Benchmark]: Witness Printer took 53.98 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: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:44:23,401 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 422.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -138.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.68 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 746.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 986.7 MB in the end (delta: 90.5 MB). Peak memory consumption was 90.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4116.93 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 81.3 MB). Free memory was 986.7 MB in the beginning and 1.1 GB in the end (delta: -87.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 53.98 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: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1013]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L950] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L952] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L605] COND TRUE waterLevel < 2 [L606] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L986] tmp___1 = __VERIFIER_nondet_int() [L988] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L920] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L927] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L701] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L708] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L626] int retValue_acc ; [L629] retValue_acc = methaneLevelCritical [L630] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L834] int retValue_acc ; [L837] retValue_acc = pumpRunning [L838] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1013] __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, 197 locations, 3 error locations. Result: UNSAFE, OverallTime: 4.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 744 SDtfs, 1842 SDslu, 1147 SDs, 0 SdLazy, 197 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=261occurred 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, 886 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 11044 SizeOfPredicates, 6 NumberOfNonLiveVariables, 928 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...