./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product38.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_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/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 a0c13a298b8ef5fea6639223509104e0f4da0801 ....................................................................................................................................... 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_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/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 a0c13a298b8ef5fea6639223509104e0f4da0801 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 19:31:19,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:31:19,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:31:19,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:31:19,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:31:19,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:31:19,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:31:19,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:31:19,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:31:19,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:31:19,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:31:19,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:31:19,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:31:19,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:31:19,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:31:19,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:31:19,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:31:19,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:31:19,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:31:19,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:31:19,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:31:19,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:31:19,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:31:19,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:31:19,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:31:19,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:31:19,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:31:19,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:31:19,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:31:19,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:31:19,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:31:19,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:31:19,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:31:19,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:31:19,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:31:19,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:31:19,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:31:19,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:31:19,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:31:19,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:31:19,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:31:19,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 19:31:19,710 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:31:19,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:31:19,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:31:19,711 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:31:19,711 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:31:19,711 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:31:19,712 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 19:31:19,712 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:31:19,712 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:31:19,712 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 19:31:19,712 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 19:31:19,712 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:31:19,713 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 19:31:19,713 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 19:31:19,713 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 19:31:19,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:31:19,714 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:31:19,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 19:31:19,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:31:19,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:31:19,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:31:19,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:31:19,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:31:19,715 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:31:19,715 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:31:19,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:31:19,716 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:31:19,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:31:19,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:31:19,716 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:31:19,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:31:19,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:31:19,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:31:19,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:31:19,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:31:19,717 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 19:31:19,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 19:31:19,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:31:19,718 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:31:19,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:31:19,718 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_28e199ba-2897-42db-aad3-079f0a0ed58c/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 -> a0c13a298b8ef5fea6639223509104e0f4da0801 [2019-12-07 19:31:19,817 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:31:19,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:31:19,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:31:19,828 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:31:19,828 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:31:19,829 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c [2019-12-07 19:31:19,865 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/data/1893a926f/acdda585ac594d0881fe429d0c989674/FLAG0cb7f921f [2019-12-07 19:31:20,293 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:31:20,294 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c [2019-12-07 19:31:20,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/data/1893a926f/acdda585ac594d0881fe429d0c989674/FLAG0cb7f921f [2019-12-07 19:31:20,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/data/1893a926f/acdda585ac594d0881fe429d0c989674 [2019-12-07 19:31:20,312 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:31:20,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:31:20,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:31:20,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:31:20,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:31:20,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:31:20" (1/1) ... [2019-12-07 19:31:20,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@881d7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:20, skipping insertion in model container [2019-12-07 19:31:20,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:31:20" (1/1) ... [2019-12-07 19:31:20,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:31:20,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:31:20,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:31:20,581 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 19:31:20,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@990aa78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:20, skipping insertion in model container [2019-12-07 19:31:20,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:31:20,582 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 19:31:20,584 INFO L168 Benchmark]: Toolchain (without parser) took 270.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -139.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2019-12-07 19:31:20,584 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:31:20,585 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -144.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:31:20,586 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 268.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -144.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 236]: 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 19:31:21,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:31:21,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:31:21,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:31:21,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:31:21,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:31:21,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:31:21,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:31:21,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:31:21,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:31:21,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:31:21,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:31:21,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:31:21,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:31:21,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:31:21,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:31:21,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:31:21,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:31:21,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:31:21,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:31:21,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:31:21,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:31:21,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:31:21,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:31:21,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:31:21,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:31:21,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:31:21,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:31:21,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:31:21,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:31:21,770 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:31:21,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:31:21,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:31:21,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:31:21,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:31:21,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:31:21,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:31:21,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:31:21,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:31:21,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:31:21,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:31:21,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 19:31:21,787 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:31:21,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:31:21,788 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:31:21,788 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:31:21,788 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:31:21,788 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:31:21,789 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:31:21,789 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:31:21,789 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:31:21,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:31:21,790 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:31:21,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:31:21,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:31:21,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:31:21,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:31:21,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:31:21,791 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:31:21,791 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 19:31:21,791 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 19:31:21,791 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:31:21,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:31:21,792 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:31:21,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:31:21,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:31:21,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 19:31:21,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:31:21,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:31:21,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:31:21,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:31:21,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:31:21,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:31:21,794 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 19:31:21,794 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 19:31:21,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:31:21,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:31:21,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:31:21,795 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_28e199ba-2897-42db-aad3-079f0a0ed58c/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 -> a0c13a298b8ef5fea6639223509104e0f4da0801 [2019-12-07 19:31:21,965 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:31:21,973 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:31:21,975 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:31:21,976 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:31:21,976 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:31:21,977 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c [2019-12-07 19:31:22,014 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/data/08e376b28/d054d7c4d9f740e4a5571deaa57f2b54/FLAGb225242fa [2019-12-07 19:31:22,488 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:31:22,489 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/sv-benchmarks/c/product-lines/minepump_spec1_product38.cil.c [2019-12-07 19:31:22,497 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/data/08e376b28/d054d7c4d9f740e4a5571deaa57f2b54/FLAGb225242fa [2019-12-07 19:31:22,507 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/data/08e376b28/d054d7c4d9f740e4a5571deaa57f2b54 [2019-12-07 19:31:22,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:31:22,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:31:22,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:31:22,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:31:22,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:31:22,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:31:22" (1/1) ... [2019-12-07 19:31:22,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:22, skipping insertion in model container [2019-12-07 19:31:22,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:31:22" (1/1) ... [2019-12-07 19:31:22,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:31:22,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:31:22,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:31:22,813 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 19:31:22,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:31:22,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:31:22,872 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:31:22,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:31:22,936 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:31:22,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:22 WrapperNode [2019-12-07 19:31:22,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:31:22,937 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:31:22,937 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:31:22,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:31:22,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:22" (1/1) ... [2019-12-07 19:31:22,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:22" (1/1) ... [2019-12-07 19:31:22,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:31:22,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:31:22,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:31:22,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:31:22,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:22" (1/1) ... [2019-12-07 19:31:22,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:22" (1/1) ... [2019-12-07 19:31:22,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:22" (1/1) ... [2019-12-07 19:31:22,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:22" (1/1) ... [2019-12-07 19:31:23,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:22" (1/1) ... [2019-12-07 19:31:23,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:22" (1/1) ... [2019-12-07 19:31:23,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:22" (1/1) ... [2019-12-07 19:31:23,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:31:23,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:31:23,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:31:23,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:31:23,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/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 19:31:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 19:31:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 19:31:23,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:31:23,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:31:23,573 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:31:23,574 INFO L287 CfgBuilder]: Removed 158 assume(true) statements. [2019-12-07 19:31:23,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:31:23 BoogieIcfgContainer [2019-12-07 19:31:23,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:31:23,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:31:23,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:31:23,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:31:23,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:31:22" (1/3) ... [2019-12-07 19:31:23,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2fad76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:31:23, skipping insertion in model container [2019-12-07 19:31:23,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:31:22" (2/3) ... [2019-12-07 19:31:23,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2fad76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:31:23, skipping insertion in model container [2019-12-07 19:31:23,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:31:23" (3/3) ... [2019-12-07 19:31:23,582 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product38.cil.c [2019-12-07 19:31:23,590 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:31:23,595 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 19:31:23,602 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 19:31:23,618 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:31:23,618 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:31:23,618 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:31:23,618 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:31:23,618 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:31:23,619 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:31:23,619 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:31:23,619 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:31:23,631 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2019-12-07 19:31:23,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 19:31:23,636 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:31:23,636 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:31:23,637 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:31:23,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:31:23,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1529342393, now seen corresponding path program 1 times [2019-12-07 19:31:23,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:31:23,650 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470112847] [2019-12-07 19:31:23,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/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 19:31:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:31:23,789 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 19:31:23,793 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:31:23,803 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 19:31:23,804 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:31:23,807 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 19:31:23,808 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470112847] [2019-12-07 19:31:23,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:31:23,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 19:31:23,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258859766] [2019-12-07 19:31:23,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 19:31:23,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:31:23,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 19:31:23,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:31:23,823 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2019-12-07 19:31:23,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:31:23,848 INFO L93 Difference]: Finished difference Result 216 states and 329 transitions. [2019-12-07 19:31:23,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 19:31:23,849 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 19:31:23,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:31:23,857 INFO L225 Difference]: With dead ends: 216 [2019-12-07 19:31:23,857 INFO L226 Difference]: Without dead ends: 107 [2019-12-07 19:31:23,860 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 19:31:23,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-12-07 19:31:23,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-12-07 19:31:23,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-12-07 19:31:23,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2019-12-07 19:31:23,893 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 16 [2019-12-07 19:31:23,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:31:23,893 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-12-07 19:31:23,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 19:31:23,893 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2019-12-07 19:31:23,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 19:31:23,894 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:31:23,894 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:31:24,095 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 19:31:24,095 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:31:24,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:31:24,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1945506518, now seen corresponding path program 1 times [2019-12-07 19:31:24,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:31:24,097 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808289653] [2019-12-07 19:31:24,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/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 19:31:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:31:24,236 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:31:24,237 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:31:24,253 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 19:31:24,253 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:31:24,263 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 19:31:24,263 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808289653] [2019-12-07 19:31:24,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:31:24,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 19:31:24,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533056323] [2019-12-07 19:31:24,266 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:31:24,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:31:24,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:31:24,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:31:24,267 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand 4 states. [2019-12-07 19:31:24,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:31:24,282 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2019-12-07 19:31:24,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:31:24,283 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 19:31:24,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:31:24,284 INFO L225 Difference]: With dead ends: 107 [2019-12-07 19:31:24,284 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 19:31:24,285 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 19:31:24,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 19:31:24,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 19:31:24,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 19:31:24,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2019-12-07 19:31:24,291 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 17 [2019-12-07 19:31:24,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:31:24,291 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2019-12-07 19:31:24,291 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:31:24,291 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2019-12-07 19:31:24,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 19:31:24,292 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:31:24,293 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] [2019-12-07 19:31:24,493 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 19:31:24,493 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:31:24,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:31:24,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1939738244, now seen corresponding path program 1 times [2019-12-07 19:31:24,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:31:24,495 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829021324] [2019-12-07 19:31:24,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/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 19:31:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:31:24,602 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:31:24,603 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:31:24,611 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 19:31:24,612 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:31:24,618 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 19:31:24,618 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829021324] [2019-12-07 19:31:24,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:31:24,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 19:31:24,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243090762] [2019-12-07 19:31:24,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:31:24,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:31:24,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:31:24,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:31:24,620 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand 4 states. [2019-12-07 19:31:24,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:31:24,660 INFO L93 Difference]: Finished difference Result 84 states and 124 transitions. [2019-12-07 19:31:24,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:31:24,661 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 19:31:24,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:31:24,662 INFO L225 Difference]: With dead ends: 84 [2019-12-07 19:31:24,662 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 19:31:24,662 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 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 19:31:24,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 19:31:24,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 19:31:24,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 19:31:24,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2019-12-07 19:31:24,669 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 22 [2019-12-07 19:31:24,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:31:24,669 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2019-12-07 19:31:24,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:31:24,670 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2019-12-07 19:31:24,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 19:31:24,671 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:31:24,671 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 19:31:24,871 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 19:31:24,871 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:31:24,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:31:24,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1547834963, now seen corresponding path program 1 times [2019-12-07 19:31:24,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:31:24,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1926656136] [2019-12-07 19:31:24,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/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 19:31:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:31:24,971 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:31:24,972 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:31:24,977 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 19:31:24,977 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:31:24,979 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 19:31:24,980 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1926656136] [2019-12-07 19:31:24,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:31:24,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 19:31:24,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951840836] [2019-12-07 19:31:24,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 19:31:24,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:31:24,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 19:31:24,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:31:24,981 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2019-12-07 19:31:25,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:31:25,034 INFO L93 Difference]: Finished difference Result 105 states and 152 transitions. [2019-12-07 19:31:25,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:31:25,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 19:31:25,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:31:25,035 INFO L225 Difference]: With dead ends: 105 [2019-12-07 19:31:25,036 INFO L226 Difference]: Without dead ends: 66 [2019-12-07 19:31:25,036 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 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 19:31:25,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-12-07 19:31:25,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2019-12-07 19:31:25,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-12-07 19:31:25,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2019-12-07 19:31:25,045 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 24 [2019-12-07 19:31:25,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:31:25,045 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2019-12-07 19:31:25,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 19:31:25,046 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2019-12-07 19:31:25,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 19:31:25,047 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:31:25,047 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] [2019-12-07 19:31:25,248 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 19:31:25,248 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:31:25,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:31:25,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1827782978, now seen corresponding path program 1 times [2019-12-07 19:31:25,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:31:25,250 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281918158] [2019-12-07 19:31:25,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/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 19:31:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:31:25,426 INFO L264 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 19:31:25,428 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:31:25,440 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 19:31:25,440 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:31:25,445 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 19:31:25,445 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281918158] [2019-12-07 19:31:25,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:31:25,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 19:31:25,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341407637] [2019-12-07 19:31:25,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 19:31:25,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:31:25,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 19:31:25,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 19:31:25,447 INFO L87 Difference]: Start difference. First operand 64 states and 90 transitions. Second operand 5 states. [2019-12-07 19:31:25,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:31:25,495 INFO L93 Difference]: Finished difference Result 171 states and 239 transitions. [2019-12-07 19:31:25,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 19:31:25,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-07 19:31:25,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:31:25,496 INFO L225 Difference]: With dead ends: 171 [2019-12-07 19:31:25,496 INFO L226 Difference]: Without dead ends: 113 [2019-12-07 19:31:25,497 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 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 19:31:25,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-12-07 19:31:25,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 70. [2019-12-07 19:31:25,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-07 19:31:25,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2019-12-07 19:31:25,504 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 30 [2019-12-07 19:31:25,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:31:25,504 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2019-12-07 19:31:25,504 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 19:31:25,504 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2019-12-07 19:31:25,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 19:31:25,505 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:31:25,505 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] [2019-12-07 19:31:25,705 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 19:31:25,706 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:31:25,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:31:25,706 INFO L82 PathProgramCache]: Analyzing trace with hash 834728065, now seen corresponding path program 1 times [2019-12-07 19:31:25,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:31:25,707 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863883822] [2019-12-07 19:31:25,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/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 19:31:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:31:25,810 INFO L264 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 19:31:25,811 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:31:25,825 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 19:31:25,826 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:31:25,829 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 19:31:25,830 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863883822] [2019-12-07 19:31:25,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:31:25,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 19:31:25,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775410213] [2019-12-07 19:31:25,830 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 19:31:25,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:31:25,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 19:31:25,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 19:31:25,831 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand 5 states. [2019-12-07 19:31:25,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:31:25,904 INFO L93 Difference]: Finished difference Result 344 states and 483 transitions. [2019-12-07 19:31:25,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 19:31:25,904 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-07 19:31:25,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:31:25,906 INFO L225 Difference]: With dead ends: 344 [2019-12-07 19:31:25,906 INFO L226 Difference]: Without dead ends: 280 [2019-12-07 19:31:25,907 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 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 19:31:25,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-12-07 19:31:25,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 128. [2019-12-07 19:31:25,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-12-07 19:31:25,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 175 transitions. [2019-12-07 19:31:25,920 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 175 transitions. Word has length 30 [2019-12-07 19:31:25,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:31:25,920 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 175 transitions. [2019-12-07 19:31:25,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 19:31:25,920 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 175 transitions. [2019-12-07 19:31:25,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 19:31:25,921 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:31:25,921 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 19:31:26,122 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 19:31:26,123 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:31:26,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:31:26,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1506496567, now seen corresponding path program 1 times [2019-12-07 19:31:26,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:31:26,125 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283111791] [2019-12-07 19:31:26,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/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 19:31:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:31:26,262 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 19:31:26,265 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:31:26,278 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 19:31:26,278 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:31:26,281 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 19:31:26,281 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283111791] [2019-12-07 19:31:26,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:31:26,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 19:31:26,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807447850] [2019-12-07 19:31:26,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 19:31:26,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:31:26,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 19:31:26,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 19:31:26,282 INFO L87 Difference]: Start difference. First operand 128 states and 175 transitions. Second operand 5 states. [2019-12-07 19:31:26,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:31:26,411 INFO L93 Difference]: Finished difference Result 366 states and 502 transitions. [2019-12-07 19:31:26,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 19:31:26,412 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 19:31:26,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:31:26,414 INFO L225 Difference]: With dead ends: 366 [2019-12-07 19:31:26,414 INFO L226 Difference]: Without dead ends: 364 [2019-12-07 19:31:26,415 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 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 19:31:26,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-12-07 19:31:26,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 128. [2019-12-07 19:31:26,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-12-07 19:31:26,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 174 transitions. [2019-12-07 19:31:26,430 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 174 transitions. Word has length 31 [2019-12-07 19:31:26,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:31:26,431 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 174 transitions. [2019-12-07 19:31:26,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 19:31:26,431 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 174 transitions. [2019-12-07 19:31:26,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 19:31:26,432 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:31:26,432 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 19:31:26,632 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 19:31:26,633 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:31:26,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:31:26,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1549041486, now seen corresponding path program 1 times [2019-12-07 19:31:26,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:31:26,634 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974249] [2019-12-07 19:31:26,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/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 19:31:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:31:26,787 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 19:31:26,788 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:31:26,796 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 19:31:26,796 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:31:26,805 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 19:31:26,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974249] [2019-12-07 19:31:26,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:31:26,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 19:31:26,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850258797] [2019-12-07 19:31:26,806 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 19:31:26,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:31:26,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 19:31:26,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 19:31:26,806 INFO L87 Difference]: Start difference. First operand 128 states and 174 transitions. Second operand 6 states. [2019-12-07 19:31:26,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:31:26,845 INFO L93 Difference]: Finished difference Result 346 states and 466 transitions. [2019-12-07 19:31:26,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 19:31:26,845 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-12-07 19:31:26,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:31:26,846 INFO L225 Difference]: With dead ends: 346 [2019-12-07 19:31:26,846 INFO L226 Difference]: Without dead ends: 224 [2019-12-07 19:31:26,847 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 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 19:31:26,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2019-12-07 19:31:26,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 136. [2019-12-07 19:31:26,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-12-07 19:31:26,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 182 transitions. [2019-12-07 19:31:26,856 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 182 transitions. Word has length 31 [2019-12-07 19:31:26,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:31:26,856 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 182 transitions. [2019-12-07 19:31:26,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 19:31:26,856 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 182 transitions. [2019-12-07 19:31:26,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 19:31:26,857 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:31:26,857 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 19:31:27,057 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 19:31:27,058 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:31:27,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:31:27,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1290876048, now seen corresponding path program 1 times [2019-12-07 19:31:27,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:31:27,059 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223313139] [2019-12-07 19:31:27,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/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 19:31:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:31:27,177 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:31:27,178 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:31:27,183 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 19:31:27,183 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:31:27,189 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 19:31:27,189 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223313139] [2019-12-07 19:31:27,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:31:27,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 19:31:27,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161410981] [2019-12-07 19:31:27,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:31:27,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:31:27,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:31:27,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:31:27,190 INFO L87 Difference]: Start difference. First operand 136 states and 182 transitions. Second operand 4 states. [2019-12-07 19:31:27,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:31:27,236 INFO L93 Difference]: Finished difference Result 418 states and 562 transitions. [2019-12-07 19:31:27,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 19:31:27,236 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-07 19:31:27,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:31:27,237 INFO L225 Difference]: With dead ends: 418 [2019-12-07 19:31:27,237 INFO L226 Difference]: Without dead ends: 288 [2019-12-07 19:31:27,238 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 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 19:31:27,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2019-12-07 19:31:27,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 236. [2019-12-07 19:31:27,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2019-12-07 19:31:27,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 313 transitions. [2019-12-07 19:31:27,251 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 313 transitions. Word has length 31 [2019-12-07 19:31:27,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:31:27,252 INFO L462 AbstractCegarLoop]: Abstraction has 236 states and 313 transitions. [2019-12-07 19:31:27,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:31:27,252 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 313 transitions. [2019-12-07 19:31:27,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 19:31:27,252 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:31:27,252 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 19:31:27,453 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 19:31:27,453 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:31:27,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:31:27,453 INFO L82 PathProgramCache]: Analyzing trace with hash 891331378, now seen corresponding path program 1 times [2019-12-07 19:31:27,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:31:27,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736665466] [2019-12-07 19:31:27,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/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 19:31:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:31:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:31:29,227 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 19:31:29,227 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 19:31:29,427 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 19:31:29,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:31:29 BoogieIcfgContainer [2019-12-07 19:31:29,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:31:29,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:31:29,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:31:29,531 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:31:29,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:31:23" (3/4) ... [2019-12-07 19:31:29,533 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 19:31:29,613 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_28e199ba-2897-42db-aad3-079f0a0ed58c/bin/utaipan/witness.graphml [2019-12-07 19:31:29,613 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:31:29,615 INFO L168 Benchmark]: Toolchain (without parser) took 7103.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.2 MB). Free memory was 953.7 MB in the beginning and 967.9 MB in the end (delta: -14.1 MB). Peak memory consumption was 184.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:31:29,615 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:31:29,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -124.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-12-07 19:31:29,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.09 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: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2019-12-07 19:31:29,616 INFO L168 Benchmark]: Boogie Preprocessor took 36.97 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 19:31:29,616 INFO L168 Benchmark]: RCFGBuilder took 554.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 988.8 MB in the end (delta: 75.4 MB). Peak memory consumption was 75.4 MB. Max. memory is 11.5 GB. [2019-12-07 19:31:29,616 INFO L168 Benchmark]: TraceAbstraction took 5954.96 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 92.3 MB). Free memory was 988.8 MB in the beginning and 983.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 97.2 MB. Max. memory is 11.5 GB. [2019-12-07 19:31:29,617 INFO L168 Benchmark]: Witness Printer took 82.09 ms. Allocated memory is still 1.2 GB. Free memory was 983.9 MB in the beginning and 967.9 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:31:29,618 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 424.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -124.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.09 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: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.97 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 554.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 988.8 MB in the end (delta: 75.4 MB). Peak memory consumption was 75.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5954.96 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 92.3 MB). Free memory was 988.8 MB in the beginning and 983.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 97.2 MB. Max. memory is 11.5 GB. * Witness Printer took 82.09 ms. Allocated memory is still 1.2 GB. Free memory was 983.9 MB in the beginning and 967.9 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 837]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L377] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L580] int pumpRunning = 0; [L581] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L776] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L778] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L784] tmp = __VERIFIER_nondet_int() [L786] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] COND TRUE waterLevel < 2 [L862] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L873] COND FALSE !(\read(methaneLevelCritical)) [L876] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___2) [L761] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L587] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L594] COND TRUE \read(systemActive) [L642] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L645] COND FALSE !(\read(pumpRunning)) [L616] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L619] COND TRUE ! pumpRunning [L739] int retValue_acc ; [L740] int tmp ; [L741] int tmp___0 ; [L923] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L926] COND FALSE !(waterLevel < 2) [L930] retValue_acc = 0 [L931] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L745] tmp = isHighWaterSensorDry() [L747] COND FALSE !(\read(tmp)) [L750] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L752] retValue_acc = tmp___0 [L753] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L621] tmp = isHighWaterLevel() [L623] COND TRUE \read(tmp) [L670] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L183] int tmp ; [L184] int tmp___0 ; [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L188] tmp = isMethaneLevelCritical() [L190] COND TRUE \read(tmp) [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L192] tmp___0 = isPumpRunning() [L194] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L837] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 111 locations, 3 error locations. Result: UNSAFE, OverallTime: 5.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 797 SDtfs, 1035 SDslu, 1141 SDs, 0 SdLazy, 160 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 462 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 573 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 21188 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1705 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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...