./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product33.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_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/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 7aed16b7a73618bd36d72dc3243e4d7bd764fb49 ...................................................................................................................................... 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_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/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 7aed16b7a73618bd36d72dc3243e4d7bd764fb49 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 11:22:36,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:22:36,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:22:36,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:22:36,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:22:36,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:22:36,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:22:36,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:22:36,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:22:36,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:22:36,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:22:36,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:22:36,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:22:36,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:22:36,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:22:36,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:22:36,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:22:36,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:22:36,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:22:36,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:22:36,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:22:36,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:22:36,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:22:36,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:22:36,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:22:36,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:22:36,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:22:36,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:22:36,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:22:36,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:22:36,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:22:36,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:22:36,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:22:36,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:22:36,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:22:36,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:22:36,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:22:36,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:22:36,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:22:36,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:22:36,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:22:36,703 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 11:22:36,713 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:22:36,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:22:36,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:22:36,713 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:22:36,714 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:22:36,714 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:22:36,714 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 11:22:36,714 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:22:36,714 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:22:36,714 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 11:22:36,714 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 11:22:36,714 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:22:36,715 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 11:22:36,715 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 11:22:36,715 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 11:22:36,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:22:36,715 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:22:36,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:22:36,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:22:36,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:22:36,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:22:36,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:22:36,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:22:36,716 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:22:36,716 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:22:36,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:22:36,716 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:22:36,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:22:36,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:22:36,717 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:22:36,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:22:36,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:22:36,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:22:36,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:22:36,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:22:36,717 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 11:22:36,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:22:36,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:22:36,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:22:36,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:22:36,718 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_653592f5-7caa-464e-b46d-fb6ba9ca2db0/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 -> 7aed16b7a73618bd36d72dc3243e4d7bd764fb49 [2019-12-07 11:22:36,816 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:22:36,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:22:36,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:22:36,828 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:22:36,828 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:22:36,829 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2019-12-07 11:22:36,876 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/data/16ede376d/1705607f15954b4a8a9288889f58a054/FLAGe933f070e [2019-12-07 11:22:37,225 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:22:37,225 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2019-12-07 11:22:37,233 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/data/16ede376d/1705607f15954b4a8a9288889f58a054/FLAGe933f070e [2019-12-07 11:22:37,241 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/data/16ede376d/1705607f15954b4a8a9288889f58a054 [2019-12-07 11:22:37,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:22:37,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:22:37,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:22:37,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:22:37,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:22:37,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:22:37" (1/1) ... [2019-12-07 11:22:37,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7762f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:37, skipping insertion in model container [2019-12-07 11:22:37,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:22:37" (1/1) ... [2019-12-07 11:22:37,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:22:37,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:22:37,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:22:37,521 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 11:22:37,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@22158c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:37, skipping insertion in model container [2019-12-07 11:22:37,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:22:37,522 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 11:22:37,524 INFO L168 Benchmark]: Toolchain (without parser) took 278.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.2 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -133.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:22:37,524 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:22:37,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.2 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -133.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:22:37,526 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 277.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.2 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -133.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 538]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 11:22:38,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:22:38,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:22:38,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:22:38,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:22:38,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:22:38,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:22:38,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:22:38,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:22:38,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:22:38,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:22:38,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:22:38,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:22:38,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:22:38,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:22:38,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:22:38,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:22:38,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:22:38,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:22:38,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:22:38,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:22:38,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:22:38,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:22:38,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:22:38,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:22:38,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:22:38,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:22:38,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:22:38,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:22:38,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:22:38,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:22:38,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:22:38,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:22:38,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:22:38,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:22:38,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:22:38,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:22:38,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:22:38,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:22:38,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:22:38,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:22:38,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 11:22:38,688 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:22:38,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:22:38,688 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:22:38,688 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:22:38,689 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:22:38,689 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:22:38,689 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:22:38,689 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:22:38,689 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:22:38,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:22:38,690 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:22:38,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:22:38,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:22:38,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:22:38,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:22:38,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:22:38,691 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:22:38,691 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:22:38,691 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:22:38,691 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:22:38,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:22:38,691 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:22:38,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:22:38,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:22:38,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:22:38,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:22:38,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:22:38,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:22:38,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:22:38,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:22:38,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:22:38,692 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 11:22:38,693 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:22:38,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:22:38,693 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:22:38,693 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:22:38,693 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_653592f5-7caa-464e-b46d-fb6ba9ca2db0/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 -> 7aed16b7a73618bd36d72dc3243e4d7bd764fb49 [2019-12-07 11:22:38,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:22:38,884 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:22:38,887 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:22:38,888 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:22:38,889 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:22:38,889 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2019-12-07 11:22:38,935 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/data/c32ce9ccb/95124fb20a0e4670900e272f3fff6fc7/FLAG64ef2d99a [2019-12-07 11:22:39,340 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:22:39,340 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2019-12-07 11:22:39,349 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/data/c32ce9ccb/95124fb20a0e4670900e272f3fff6fc7/FLAG64ef2d99a [2019-12-07 11:22:39,711 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/data/c32ce9ccb/95124fb20a0e4670900e272f3fff6fc7 [2019-12-07 11:22:39,713 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:22:39,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:22:39,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:22:39,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:22:39,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:22:39,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:22:39" (1/1) ... [2019-12-07 11:22:39,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e232920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:39, skipping insertion in model container [2019-12-07 11:22:39,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:22:39" (1/1) ... [2019-12-07 11:22:39,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:22:39,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:22:39,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:22:39,978 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 11:22:39,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:22:40,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:22:40,042 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:22:40,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:22:40,109 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:22:40,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:40 WrapperNode [2019-12-07 11:22:40,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:22:40,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:22:40,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:22:40,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:22:40,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:40" (1/1) ... [2019-12-07 11:22:40,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:40" (1/1) ... [2019-12-07 11:22:40,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:22:40,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:22:40,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:22:40,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:22:40,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:40" (1/1) ... [2019-12-07 11:22:40,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:40" (1/1) ... [2019-12-07 11:22:40,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:40" (1/1) ... [2019-12-07 11:22:40,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:40" (1/1) ... [2019-12-07 11:22:40,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:40" (1/1) ... [2019-12-07 11:22:40,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:40" (1/1) ... [2019-12-07 11:22:40,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:40" (1/1) ... [2019-12-07 11:22:40,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:22:40,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:22:40,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:22:40,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:22:40,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:22:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:22:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 11:22:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:22:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:22:40,708 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:22:40,709 INFO L287 CfgBuilder]: Removed 98 assume(true) statements. [2019-12-07 11:22:40,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:22:40 BoogieIcfgContainer [2019-12-07 11:22:40,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:22:40,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:22:40,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:22:40,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:22:40,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:22:39" (1/3) ... [2019-12-07 11:22:40,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb3d30c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:22:40, skipping insertion in model container [2019-12-07 11:22:40,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:22:40" (2/3) ... [2019-12-07 11:22:40,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb3d30c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:22:40, skipping insertion in model container [2019-12-07 11:22:40,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:22:40" (3/3) ... [2019-12-07 11:22:40,715 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2019-12-07 11:22:40,722 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:22:40,727 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 11:22:40,735 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 11:22:40,752 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:22:40,752 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:22:40,752 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:22:40,752 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:22:40,752 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:22:40,752 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:22:40,752 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:22:40,752 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:22:40,763 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2019-12-07 11:22:40,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 11:22:40,767 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:22:40,768 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:22:40,768 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:22:40,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:22:40,772 INFO L82 PathProgramCache]: Analyzing trace with hash -816697532, now seen corresponding path program 1 times [2019-12-07 11:22:40,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:22:40,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795908346] [2019-12-07 11:22:40,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 11:22:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:22:40,917 INFO L264 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 11:22:40,920 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:22:40,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:40,931 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:22:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:40,935 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795908346] [2019-12-07 11:22:40,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:22:40,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:22:40,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687507650] [2019-12-07 11:22:40,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:22:40,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:22:40,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:22:40,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:22:40,950 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 2 states. [2019-12-07 11:22:40,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:22:40,972 INFO L93 Difference]: Finished difference Result 157 states and 240 transitions. [2019-12-07 11:22:40,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:22:40,973 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 11:22:40,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:22:40,981 INFO L225 Difference]: With dead ends: 157 [2019-12-07 11:22:40,981 INFO L226 Difference]: Without dead ends: 78 [2019-12-07 11:22:40,984 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:22:40,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-12-07 11:22:41,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2019-12-07 11:22:41,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-12-07 11:22:41,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2019-12-07 11:22:41,018 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 18 [2019-12-07 11:22:41,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:22:41,018 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2019-12-07 11:22:41,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:22:41,018 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2019-12-07 11:22:41,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 11:22:41,019 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:22:41,019 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:22:41,220 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:22:41,221 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:22:41,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:22:41,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1035533501, now seen corresponding path program 1 times [2019-12-07 11:22:41,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:22:41,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620619967] [2019-12-07 11:22:41,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 11:22:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:22:41,392 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:22:41,394 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:22:41,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:41,409 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:22:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:41,419 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620619967] [2019-12-07 11:22:41,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:22:41,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:22:41,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713801070] [2019-12-07 11:22:41,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:22:41,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:22:41,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:22:41,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:22:41,422 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand 4 states. [2019-12-07 11:22:41,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:22:41,434 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2019-12-07 11:22:41,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:22:41,435 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 11:22:41,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:22:41,435 INFO L225 Difference]: With dead ends: 78 [2019-12-07 11:22:41,436 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 11:22:41,436 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:22:41,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 11:22:41,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 11:22:41,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 11:22:41,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2019-12-07 11:22:41,440 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 19 [2019-12-07 11:22:41,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:22:41,440 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2019-12-07 11:22:41,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:22:41,441 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2019-12-07 11:22:41,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 11:22:41,441 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:22:41,441 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:22:41,642 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:22:41,643 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:22:41,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:22:41,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1153900874, now seen corresponding path program 1 times [2019-12-07 11:22:41,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:22:41,646 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125465741] [2019-12-07 11:22:41,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 11:22:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:22:41,864 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:22:41,866 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:22:41,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:41,874 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:22:41,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:41,882 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125465741] [2019-12-07 11:22:41,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:22:41,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 11:22:41,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490533138] [2019-12-07 11:22:41,883 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:22:41,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:22:41,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:22:41,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:22:41,883 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 4 states. [2019-12-07 11:22:41,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:22:41,889 INFO L93 Difference]: Finished difference Result 65 states and 95 transitions. [2019-12-07 11:22:41,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:22:41,890 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 11:22:41,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:22:41,890 INFO L225 Difference]: With dead ends: 65 [2019-12-07 11:22:41,891 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 11:22:41,891 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:22:41,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 11:22:41,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 11:22:41,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 11:22:41,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2019-12-07 11:22:41,895 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 24 [2019-12-07 11:22:41,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:22:41,895 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2019-12-07 11:22:41,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:22:41,896 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2019-12-07 11:22:41,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 11:22:41,896 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:22:41,896 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:22:42,097 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 11:22:42,097 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:22:42,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:22:42,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1264883623, now seen corresponding path program 1 times [2019-12-07 11:22:42,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:22:42,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316721767] [2019-12-07 11:22:42,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 11:22:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:22:42,245 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:22:42,247 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:22:42,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:42,253 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:22:42,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:42,256 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316721767] [2019-12-07 11:22:42,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:22:42,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 11:22:42,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477698597] [2019-12-07 11:22:42,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 11:22:42,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:22:42,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:22:42,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:22:42,258 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand 3 states. [2019-12-07 11:22:42,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:22:42,317 INFO L93 Difference]: Finished difference Result 87 states and 125 transitions. [2019-12-07 11:22:42,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:22:42,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 11:22:42,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:22:42,318 INFO L225 Difference]: With dead ends: 87 [2019-12-07 11:22:42,318 INFO L226 Difference]: Without dead ends: 58 [2019-12-07 11:22:42,319 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:22:42,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-12-07 11:22:42,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2019-12-07 11:22:42,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 11:22:42,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 79 transitions. [2019-12-07 11:22:42,325 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 79 transitions. Word has length 25 [2019-12-07 11:22:42,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:22:42,325 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 79 transitions. [2019-12-07 11:22:42,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 11:22:42,325 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2019-12-07 11:22:42,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 11:22:42,326 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:22:42,326 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, 1, 1, 1] [2019-12-07 11:22:42,527 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 11:22:42,528 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:22:42,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:22:42,529 INFO L82 PathProgramCache]: Analyzing trace with hash -703728504, now seen corresponding path program 1 times [2019-12-07 11:22:42,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:22:42,531 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006589323] [2019-12-07 11:22:42,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 11:22:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:22:42,703 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:22:42,705 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:22:42,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:42,718 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:22:42,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:42,726 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006589323] [2019-12-07 11:22:42,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:22:42,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 11:22:42,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187918373] [2019-12-07 11:22:42,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 11:22:42,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:22:42,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 11:22:42,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 11:22:42,727 INFO L87 Difference]: Start difference. First operand 56 states and 79 transitions. Second operand 5 states. [2019-12-07 11:22:42,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:22:42,772 INFO L93 Difference]: Finished difference Result 145 states and 205 transitions. [2019-12-07 11:22:42,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:22:42,772 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 11:22:42,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:22:42,773 INFO L225 Difference]: With dead ends: 145 [2019-12-07 11:22:42,774 INFO L226 Difference]: Without dead ends: 96 [2019-12-07 11:22:42,774 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 11:22:42,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-12-07 11:22:42,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 59. [2019-12-07 11:22:42,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-12-07 11:22:42,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 82 transitions. [2019-12-07 11:22:42,782 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 82 transitions. Word has length 31 [2019-12-07 11:22:42,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:22:42,783 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 82 transitions. [2019-12-07 11:22:42,783 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 11:22:42,783 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions. [2019-12-07 11:22:42,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 11:22:42,784 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:22:42,784 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, 1, 1, 1] [2019-12-07 11:22:42,984 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 11:22:42,985 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:22:42,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:22:42,985 INFO L82 PathProgramCache]: Analyzing trace with hash 229735205, now seen corresponding path program 1 times [2019-12-07 11:22:42,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:22:42,986 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671834668] [2019-12-07 11:22:42,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 11:22:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:22:43,095 INFO L264 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:22:43,096 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:22:43,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:43,112 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:22:43,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:43,118 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671834668] [2019-12-07 11:22:43,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:22:43,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 11:22:43,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470063382] [2019-12-07 11:22:43,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 11:22:43,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:22:43,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 11:22:43,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 11:22:43,120 INFO L87 Difference]: Start difference. First operand 59 states and 82 transitions. Second operand 5 states. [2019-12-07 11:22:43,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:22:43,190 INFO L93 Difference]: Finished difference Result 275 states and 393 transitions. [2019-12-07 11:22:43,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 11:22:43,191 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 11:22:43,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:22:43,192 INFO L225 Difference]: With dead ends: 275 [2019-12-07 11:22:43,192 INFO L226 Difference]: Without dead ends: 223 [2019-12-07 11:22:43,193 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 11:22:43,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2019-12-07 11:22:43,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 103. [2019-12-07 11:22:43,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-12-07 11:22:43,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 142 transitions. [2019-12-07 11:22:43,208 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 142 transitions. Word has length 31 [2019-12-07 11:22:43,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:22:43,208 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 142 transitions. [2019-12-07 11:22:43,208 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 11:22:43,209 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 142 transitions. [2019-12-07 11:22:43,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 11:22:43,210 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:22:43,210 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, 1, 1, 1, 1] [2019-12-07 11:22:43,410 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 11:22:43,411 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:22:43,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:22:43,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1892298141, now seen corresponding path program 1 times [2019-12-07 11:22:43,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:22:43,412 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426270025] [2019-12-07 11:22:43,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 11:22:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:22:43,515 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:22:43,516 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:22:43,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:43,527 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:22:43,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:43,530 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426270025] [2019-12-07 11:22:43,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:22:43,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 11:22:43,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989378964] [2019-12-07 11:22:43,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 11:22:43,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:22:43,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 11:22:43,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 11:22:43,531 INFO L87 Difference]: Start difference. First operand 103 states and 142 transitions. Second operand 5 states. [2019-12-07 11:22:43,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:22:43,623 INFO L93 Difference]: Finished difference Result 376 states and 523 transitions. [2019-12-07 11:22:43,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 11:22:43,623 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-07 11:22:43,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:22:43,624 INFO L225 Difference]: With dead ends: 376 [2019-12-07 11:22:43,624 INFO L226 Difference]: Without dead ends: 280 [2019-12-07 11:22:43,625 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 11:22:43,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-12-07 11:22:43,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2019-12-07 11:22:43,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-12-07 11:22:43,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2019-12-07 11:22:43,634 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 32 [2019-12-07 11:22:43,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:22:43,634 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2019-12-07 11:22:43,634 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 11:22:43,635 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2019-12-07 11:22:43,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 11:22:43,635 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:22:43,635 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, 1, 1, 1, 1] [2019-12-07 11:22:43,836 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 11:22:43,837 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:22:43,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:22:43,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1659899010, now seen corresponding path program 1 times [2019-12-07 11:22:43,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:22:43,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952933996] [2019-12-07 11:22:43,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 11:22:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:22:43,985 INFO L264 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 11:22:43,986 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:22:43,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:43,993 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:22:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:44,002 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952933996] [2019-12-07 11:22:44,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:22:44,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 11:22:44,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118512561] [2019-12-07 11:22:44,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:22:44,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:22:44,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:22:44,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:22:44,004 INFO L87 Difference]: Start difference. First operand 102 states and 139 transitions. Second operand 6 states. [2019-12-07 11:22:44,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:22:44,031 INFO L93 Difference]: Finished difference Result 279 states and 379 transitions. [2019-12-07 11:22:44,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:22:44,031 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-07 11:22:44,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:22:44,032 INFO L225 Difference]: With dead ends: 279 [2019-12-07 11:22:44,032 INFO L226 Difference]: Without dead ends: 184 [2019-12-07 11:22:44,033 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 11:22:44,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2019-12-07 11:22:44,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 106. [2019-12-07 11:22:44,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-12-07 11:22:44,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 143 transitions. [2019-12-07 11:22:44,041 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 143 transitions. Word has length 32 [2019-12-07 11:22:44,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:22:44,041 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 143 transitions. [2019-12-07 11:22:44,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:22:44,041 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 143 transitions. [2019-12-07 11:22:44,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 11:22:44,042 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:22:44,042 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, 1, 1, 1, 1] [2019-12-07 11:22:44,243 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 11:22:44,244 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:22:44,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:22:44,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1073092996, now seen corresponding path program 1 times [2019-12-07 11:22:44,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:22:44,246 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658104018] [2019-12-07 11:22:44,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 11:22:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:22:44,374 INFO L264 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:22:44,375 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:22:44,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:44,380 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:22:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:44,387 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658104018] [2019-12-07 11:22:44,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:22:44,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 11:22:44,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194355736] [2019-12-07 11:22:44,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:22:44,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:22:44,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:22:44,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:22:44,388 INFO L87 Difference]: Start difference. First operand 106 states and 143 transitions. Second operand 4 states. [2019-12-07 11:22:44,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:22:44,433 INFO L93 Difference]: Finished difference Result 338 states and 459 transitions. [2019-12-07 11:22:44,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:22:44,434 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-07 11:22:44,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:22:44,436 INFO L225 Difference]: With dead ends: 338 [2019-12-07 11:22:44,436 INFO L226 Difference]: Without dead ends: 239 [2019-12-07 11:22:44,436 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:22:44,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2019-12-07 11:22:44,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 189. [2019-12-07 11:22:44,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-12-07 11:22:44,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 254 transitions. [2019-12-07 11:22:44,455 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 254 transitions. Word has length 32 [2019-12-07 11:22:44,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:22:44,455 INFO L462 AbstractCegarLoop]: Abstraction has 189 states and 254 transitions. [2019-12-07 11:22:44,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:22:44,455 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 254 transitions. [2019-12-07 11:22:44,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 11:22:44,456 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:22:44,456 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, 1, 1, 1, 1, 1] [2019-12-07 11:22:44,657 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 11:22:44,658 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:22:44,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:22:44,658 INFO L82 PathProgramCache]: Analyzing trace with hash -389810492, now seen corresponding path program 1 times [2019-12-07 11:22:44,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:22:44,660 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438077658] [2019-12-07 11:22:44,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 11:22:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:22:44,818 INFO L264 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:22:44,819 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:22:44,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:44,825 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:22:44,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:22:44,828 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438077658] [2019-12-07 11:22:44,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:22:44,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 11:22:44,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972621583] [2019-12-07 11:22:44,829 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 11:22:44,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 11:22:44,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:22:44,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:22:44,829 INFO L87 Difference]: Start difference. First operand 189 states and 254 transitions. Second operand 3 states. [2019-12-07 11:22:44,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:22:44,879 INFO L93 Difference]: Finished difference Result 307 states and 412 transitions. [2019-12-07 11:22:44,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:22:44,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-12-07 11:22:44,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:22:44,881 INFO L225 Difference]: With dead ends: 307 [2019-12-07 11:22:44,881 INFO L226 Difference]: Without dead ends: 305 [2019-12-07 11:22:44,881 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:22:44,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2019-12-07 11:22:44,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 239. [2019-12-07 11:22:44,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2019-12-07 11:22:44,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 328 transitions. [2019-12-07 11:22:44,895 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 328 transitions. Word has length 33 [2019-12-07 11:22:44,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:22:44,895 INFO L462 AbstractCegarLoop]: Abstraction has 239 states and 328 transitions. [2019-12-07 11:22:44,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 11:22:44,896 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 328 transitions. [2019-12-07 11:22:44,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 11:22:44,896 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:22:44,896 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:22:45,097 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 11:22:45,097 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:22:45,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:22:45,097 INFO L82 PathProgramCache]: Analyzing trace with hash 967205496, now seen corresponding path program 1 times [2019-12-07 11:22:45,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 11:22:45,098 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316964262] [2019-12-07 11:22:45,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 11:22:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:22:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:22:46,796 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 11:22:46,796 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:22:46,997 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 11:22:47,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:22:47 BoogieIcfgContainer [2019-12-07 11:22:47,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:22:47,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:22:47,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:22:47,111 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:22:47,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:22:40" (3/4) ... [2019-12-07 11:22:47,113 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 11:22:47,182 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_653592f5-7caa-464e-b46d-fb6ba9ca2db0/bin/utaipan/witness.graphml [2019-12-07 11:22:47,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:22:47,183 INFO L168 Benchmark]: Toolchain (without parser) took 7468.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.0 MB). Free memory was 947.0 MB in the beginning and 925.1 MB in the end (delta: 21.9 MB). Peak memory consumption was 217.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:22:47,183 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:22:47,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -145.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:22:47,184 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.37 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:22:47,184 INFO L168 Benchmark]: Boogie Preprocessor took 28.77 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 11:22:47,184 INFO L168 Benchmark]: RCFGBuilder took 526.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.0 MB). Peak memory consumption was 72.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:22:47,184 INFO L168 Benchmark]: TraceAbstraction took 6400.61 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 1.0 GB in the beginning and 947.4 MB in the end (delta: 66.2 MB). Peak memory consumption was 142.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:22:47,184 INFO L168 Benchmark]: Witness Printer took 70.63 ms. Allocated memory is still 1.2 GB. Free memory was 947.4 MB in the beginning and 925.1 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:22:47,185 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 395.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -145.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.37 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.77 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 526.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.0 MB). Peak memory consumption was 72.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6400.61 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 1.0 GB in the beginning and 947.4 MB in the end (delta: 66.2 MB). Peak memory consumption was 142.7 MB. Max. memory is 11.5 GB. * Witness Printer took 70.63 ms. Allocated memory is still 1.2 GB. Free memory was 947.4 MB in the beginning and 925.1 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 284]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L292] int pumpRunning = 0; [L293] int systemActive = 1; [L679] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L876] int methAndRunningLastTime ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L257] int retValue_acc ; [L258] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L264] tmp = valid_product() [L266] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L881] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L446] int splverifierCounter ; [L447] int tmp ; [L448] int tmp___0 ; [L449] int tmp___1 ; [L450] int tmp___2 ; [L453] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L455] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L457] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L463] tmp = __VERIFIER_nondet_int() [L465] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L473] tmp___0 = __VERIFIER_nondet_int() [L475] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L115] COND FALSE !(\read(methaneLevelCritical)) [L118] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L483] tmp___2 = __VERIFIER_nondet_int() [L485] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L300] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L307] COND TRUE \read(systemActive) [L329] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L332] COND TRUE ! pumpRunning [L426] int retValue_acc ; [L427] int tmp ; [L428] int tmp___0 ; [L165] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L168] COND FALSE !(waterLevel < 2) [L172] retValue_acc = 0 [L173] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L432] tmp = isHighWaterSensorDry() [L434] COND FALSE !(\read(tmp)) [L437] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L439] retValue_acc = tmp___0 [L440] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L334] tmp = isHighWaterLevel() [L336] COND TRUE \read(tmp) [L357] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L886] int tmp ; [L887] int tmp___0 ; [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L891] tmp = isMethaneLevelCritical() [L893] COND TRUE \read(tmp) [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L895] tmp___0 = isPumpRunning() [L897] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L898] COND FALSE !(\read(methAndRunningLastTime)) [L903] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L455] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L457] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L463] tmp = __VERIFIER_nondet_int() [L465] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L473] tmp___0 = __VERIFIER_nondet_int() [L475] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L483] tmp___2 = __VERIFIER_nondet_int() [L485] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L300] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L91] COND TRUE waterLevel > 0 [L92] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L307] COND TRUE \read(systemActive) [L329] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L332] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L886] int tmp ; [L887] int tmp___0 ; [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L891] tmp = isMethaneLevelCritical() [L893] COND TRUE \read(tmp) [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L895] tmp___0 = isPumpRunning() [L897] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L898] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L284] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 82 locations, 3 error locations. Result: UNSAFE, OverallTime: 6.2s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 667 SDtfs, 744 SDslu, 995 SDs, 0 SdLazy, 116 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 550 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 531 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 534 ConstructedInterpolants, 0 QuantifiedInterpolants, 30088 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1920 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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...