./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product37.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_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/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 903a1f53bc072e1ab483040d7a35aae5e2bdf412 ...................................................................................................................................... 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_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/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 903a1f53bc072e1ab483040d7a35aae5e2bdf412 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 20:56:03,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:56:03,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:56:03,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:56:03,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:56:03,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:56:03,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:56:03,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:56:03,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:56:03,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:56:03,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:56:03,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:56:03,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:56:03,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:56:03,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:56:03,813 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:56:03,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:56:03,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:56:03,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:56:03,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:56:03,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:56:03,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:56:03,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:56:03,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:56:03,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:56:03,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:56:03,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:56:03,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:56:03,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:56:03,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:56:03,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:56:03,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:56:03,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:56:03,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:56:03,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:56:03,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:56:03,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:56:03,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:56:03,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:56:03,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:56:03,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:56:03,827 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:56:03,838 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:56:03,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:56:03,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:56:03,838 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:56:03,839 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:56:03,839 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:56:03,839 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:56:03,839 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:56:03,839 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:56:03,839 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:56:03,839 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:56:03,839 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:56:03,840 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:56:03,840 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:56:03,840 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:56:03,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:56:03,840 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:56:03,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:56:03,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:56:03,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:56:03,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:56:03,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:56:03,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:56:03,841 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:56:03,841 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:56:03,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:56:03,842 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:56:03,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:56:03,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:56:03,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:56:03,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:56:03,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:56:03,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:56:03,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:56:03,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:56:03,843 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:56:03,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:56:03,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:56:03,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:56:03,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:56:03,843 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_e2dce22b-a826-46c5-a91e-79e10dc4c599/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 -> 903a1f53bc072e1ab483040d7a35aae5e2bdf412 [2019-12-07 20:56:03,943 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:56:03,953 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:56:03,955 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:56:03,957 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:56:03,957 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:56:03,958 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c [2019-12-07 20:56:04,000 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/data/742d5a44d/fe6943ea7b6b4dc59579dd17c2bc187f/FLAG4ca5ec748 [2019-12-07 20:56:04,337 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:56:04,338 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c [2019-12-07 20:56:04,346 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/data/742d5a44d/fe6943ea7b6b4dc59579dd17c2bc187f/FLAG4ca5ec748 [2019-12-07 20:56:04,355 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/data/742d5a44d/fe6943ea7b6b4dc59579dd17c2bc187f [2019-12-07 20:56:04,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:56:04,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:56:04,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:56:04,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:56:04,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:56:04,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:56:04" (1/1) ... [2019-12-07 20:56:04,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7762f741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:56:04, skipping insertion in model container [2019-12-07 20:56:04,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:56:04" (1/1) ... [2019-12-07 20:56:04,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:56:04,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:56:04,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:56:04,637 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 20:56:04,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c2b6f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:56:04, skipping insertion in model container [2019-12-07 20:56:04,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:56:04,638 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 20:56:04,640 INFO L168 Benchmark]: Toolchain (without parser) took 281.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:56:04,640 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:56:04,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -155.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:56:04,642 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 279.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -155.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 562]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 20:56:05,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:56:05,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:56:05,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:56:05,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:56:05,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:56:05,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:56:05,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:56:05,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:56:05,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:56:05,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:56:05,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:56:05,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:56:05,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:56:05,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:56:05,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:56:05,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:56:05,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:56:05,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:56:05,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:56:05,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:56:05,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:56:05,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:56:05,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:56:05,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:56:05,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:56:05,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:56:05,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:56:05,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:56:05,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:56:05,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:56:05,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:56:05,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:56:05,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:56:05,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:56:05,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:56:05,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:56:05,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:56:05,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:56:05,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:56:05,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:56:05,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:56:05,810 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:56:05,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:56:05,810 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:56:05,810 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:56:05,811 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:56:05,811 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:56:05,811 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:56:05,811 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:56:05,811 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:56:05,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:56:05,812 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:56:05,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:56:05,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:56:05,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:56:05,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:56:05,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:56:05,813 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:56:05,813 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:56:05,813 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:56:05,813 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:56:05,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:56:05,813 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:56:05,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:56:05,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:56:05,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:56:05,814 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:56:05,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:56:05,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:56:05,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:56:05,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:56:05,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:56:05,814 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:56:05,815 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:56:05,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:56:05,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:56:05,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:56:05,815 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_e2dce22b-a826-46c5-a91e-79e10dc4c599/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 -> 903a1f53bc072e1ab483040d7a35aae5e2bdf412 [2019-12-07 20:56:05,985 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:56:05,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:56:05,998 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:56:06,000 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:56:06,000 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:56:06,001 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c [2019-12-07 20:56:06,049 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/data/ffa954acb/b5fa3097fee64eca9df9f38674fb57b9/FLAG0ecf90677 [2019-12-07 20:56:06,417 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:56:06,417 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c [2019-12-07 20:56:06,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/data/ffa954acb/b5fa3097fee64eca9df9f38674fb57b9/FLAG0ecf90677 [2019-12-07 20:56:06,434 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/data/ffa954acb/b5fa3097fee64eca9df9f38674fb57b9 [2019-12-07 20:56:06,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:56:06,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:56:06,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:56:06,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:56:06,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:56:06,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:56:06" (1/1) ... [2019-12-07 20:56:06,442 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 08:56:06, skipping insertion in model container [2019-12-07 20:56:06,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:56:06" (1/1) ... [2019-12-07 20:56:06,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:56:06,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:56:06,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:56:06,696 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 20:56:06,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:56:06,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:56:06,746 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:56:06,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:56:06,809 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:56:06,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:56:06 WrapperNode [2019-12-07 20:56:06,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:56:06,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:56:06,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:56:06,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:56:06,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:56:06" (1/1) ... [2019-12-07 20:56:06,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:56:06" (1/1) ... [2019-12-07 20:56:06,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:56:06,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:56:06,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:56:06,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:56:06,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:56:06" (1/1) ... [2019-12-07 20:56:06,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:56:06" (1/1) ... [2019-12-07 20:56:06,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:56:06" (1/1) ... [2019-12-07 20:56:06,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:56:06" (1/1) ... [2019-12-07 20:56:06,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:56:06" (1/1) ... [2019-12-07 20:56:06,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:56:06" (1/1) ... [2019-12-07 20:56:06,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:56:06" (1/1) ... [2019-12-07 20:56:06,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:56:06,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:56:06,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:56:06,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:56:06,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:56:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:56:06,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:56:06,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 20:56:06,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:56:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:56:07,428 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:56:07,428 INFO L287 CfgBuilder]: Removed 156 assume(true) statements. [2019-12-07 20:56:07,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:56:07 BoogieIcfgContainer [2019-12-07 20:56:07,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:56:07,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:56:07,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:56:07,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:56:07,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:56:06" (1/3) ... [2019-12-07 20:56:07,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28bcafb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:56:07, skipping insertion in model container [2019-12-07 20:56:07,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:56:06" (2/3) ... [2019-12-07 20:56:07,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28bcafb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:56:07, skipping insertion in model container [2019-12-07 20:56:07,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:56:07" (3/3) ... [2019-12-07 20:56:07,434 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product37.cil.c [2019-12-07 20:56:07,441 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:56:07,447 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 20:56:07,455 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 20:56:07,472 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:56:07,472 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:56:07,472 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:56:07,472 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:56:07,472 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:56:07,473 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:56:07,473 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:56:07,473 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:56:07,485 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2019-12-07 20:56:07,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 20:56:07,489 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:56:07,490 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:56:07,490 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:56:07,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:56:07,494 INFO L82 PathProgramCache]: Analyzing trace with hash 2109695399, now seen corresponding path program 1 times [2019-12-07 20:56:07,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:56:07,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566686066] [2019-12-07 20:56:07,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 20:56:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:56:07,629 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:56:07,632 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:56:07,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:56:07,643 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:56:07,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:56:07,647 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566686066] [2019-12-07 20:56:07,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:56:07,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:56:07,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738745505] [2019-12-07 20:56:07,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:56:07,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:56:07,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:56:07,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:56:07,663 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2019-12-07 20:56:07,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:56:07,685 INFO L93 Difference]: Finished difference Result 216 states and 329 transitions. [2019-12-07 20:56:07,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:56:07,686 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 20:56:07,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:56:07,695 INFO L225 Difference]: With dead ends: 216 [2019-12-07 20:56:07,695 INFO L226 Difference]: Without dead ends: 107 [2019-12-07 20:56:07,697 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 20:56:07,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-12-07 20:56:07,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-12-07 20:56:07,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-12-07 20:56:07,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2019-12-07 20:56:07,728 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 16 [2019-12-07 20:56:07,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:56:07,729 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2019-12-07 20:56:07,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:56:07,729 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2019-12-07 20:56:07,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 20:56:07,729 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:56:07,730 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 20:56:07,930 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:56:07,930 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:56:07,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:56:07,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1093063509, now seen corresponding path program 1 times [2019-12-07 20:56:07,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:56:07,932 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241204620] [2019-12-07 20:56:07,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 20:56:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:56:08,045 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:56:08,047 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:56:08,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:56:08,060 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:56:08,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:56:08,069 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241204620] [2019-12-07 20:56:08,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:56:08,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:56:08,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633703962] [2019-12-07 20:56:08,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:56:08,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:56:08,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:56:08,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:56:08,071 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand 4 states. [2019-12-07 20:56:08,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:56:08,082 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2019-12-07 20:56:08,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:56:08,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 20:56:08,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:56:08,084 INFO L225 Difference]: With dead ends: 107 [2019-12-07 20:56:08,084 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 20:56:08,085 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 20:56:08,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 20:56:08,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 20:56:08,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 20:56:08,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2019-12-07 20:56:08,089 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 17 [2019-12-07 20:56:08,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:56:08,089 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2019-12-07 20:56:08,089 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:56:08,090 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2019-12-07 20:56:08,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 20:56:08,090 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:56:08,091 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 20:56:08,291 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:56:08,291 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:56:08,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:56:08,292 INFO L82 PathProgramCache]: Analyzing trace with hash -720159228, now seen corresponding path program 1 times [2019-12-07 20:56:08,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:56:08,292 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160047015] [2019-12-07 20:56:08,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 20:56:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:56:08,395 INFO L264 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:56:08,397 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:56:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:56:08,407 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:56:08,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:56:08,415 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160047015] [2019-12-07 20:56:08,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:56:08,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 20:56:08,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868540579] [2019-12-07 20:56:08,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:56:08,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:56:08,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:56:08,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:56:08,417 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand 4 states. [2019-12-07 20:56:08,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:56:08,426 INFO L93 Difference]: Finished difference Result 84 states and 124 transitions. [2019-12-07 20:56:08,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:56:08,427 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 20:56:08,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:56:08,428 INFO L225 Difference]: With dead ends: 84 [2019-12-07 20:56:08,428 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 20:56:08,428 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 20:56:08,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 20:56:08,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 20:56:08,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 20:56:08,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2019-12-07 20:56:08,433 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 22 [2019-12-07 20:56:08,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:56:08,433 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2019-12-07 20:56:08,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:56:08,434 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2019-12-07 20:56:08,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 20:56:08,434 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:56:08,434 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:56:08,635 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:56:08,635 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:56:08,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:56:08,635 INFO L82 PathProgramCache]: Analyzing trace with hash 2091202829, now seen corresponding path program 1 times [2019-12-07 20:56:08,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:56:08,636 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317417099] [2019-12-07 20:56:08,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 20:56:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:56:08,755 INFO L264 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:56:08,756 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:56:08,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:56:08,761 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:56:08,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:56:08,764 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317417099] [2019-12-07 20:56:08,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:56:08,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:56:08,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283373227] [2019-12-07 20:56:08,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:56:08,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:56:08,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:56:08,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:56:08,765 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2019-12-07 20:56:08,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:56:08,820 INFO L93 Difference]: Finished difference Result 105 states and 152 transitions. [2019-12-07 20:56:08,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:56:08,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 20:56:08,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:56:08,821 INFO L225 Difference]: With dead ends: 105 [2019-12-07 20:56:08,821 INFO L226 Difference]: Without dead ends: 66 [2019-12-07 20:56:08,822 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 20:56:08,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-12-07 20:56:08,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2019-12-07 20:56:08,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-12-07 20:56:08,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2019-12-07 20:56:08,828 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 24 [2019-12-07 20:56:08,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:56:08,828 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2019-12-07 20:56:08,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:56:08,829 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2019-12-07 20:56:08,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 20:56:08,829 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:56:08,829 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 20:56:09,030 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 20:56:09,031 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:56:09,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:56:09,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1013899842, now seen corresponding path program 1 times [2019-12-07 20:56:09,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:56:09,033 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436468090] [2019-12-07 20:56:09,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 20:56:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:56:09,244 INFO L264 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:56:09,245 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:56:09,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:56:09,256 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:56:09,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:56:09,262 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436468090] [2019-12-07 20:56:09,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:56:09,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 20:56:09,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959160338] [2019-12-07 20:56:09,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:56:09,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:56:09,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:56:09,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:56:09,263 INFO L87 Difference]: Start difference. First operand 64 states and 90 transitions. Second operand 5 states. [2019-12-07 20:56:09,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:56:09,308 INFO L93 Difference]: Finished difference Result 171 states and 239 transitions. [2019-12-07 20:56:09,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 20:56:09,308 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-07 20:56:09,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:56:09,309 INFO L225 Difference]: With dead ends: 171 [2019-12-07 20:56:09,309 INFO L226 Difference]: Without dead ends: 113 [2019-12-07 20:56:09,310 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 20:56:09,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-12-07 20:56:09,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 70. [2019-12-07 20:56:09,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-07 20:56:09,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2019-12-07 20:56:09,316 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 30 [2019-12-07 20:56:09,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:56:09,316 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2019-12-07 20:56:09,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:56:09,317 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2019-12-07 20:56:09,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-07 20:56:09,318 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:56:09,318 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 20:56:09,518 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 20:56:09,519 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:56:09,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:56:09,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1648611201, now seen corresponding path program 1 times [2019-12-07 20:56:09,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:56:09,521 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844446141] [2019-12-07 20:56:09,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 20:56:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:56:09,651 INFO L264 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:56:09,653 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:56:09,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:56:09,670 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:56:09,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:56:09,701 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844446141] [2019-12-07 20:56:09,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:56:09,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 20:56:09,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719302274] [2019-12-07 20:56:09,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 20:56:09,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:56:09,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 20:56:09,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 20:56:09,702 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand 8 states. [2019-12-07 20:56:09,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:56:09,951 INFO L93 Difference]: Finished difference Result 518 states and 731 transitions. [2019-12-07 20:56:09,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 20:56:09,951 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2019-12-07 20:56:09,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:56:09,955 INFO L225 Difference]: With dead ends: 518 [2019-12-07 20:56:09,955 INFO L226 Difference]: Without dead ends: 454 [2019-12-07 20:56:09,956 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-12-07 20:56:09,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-12-07 20:56:09,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 169. [2019-12-07 20:56:09,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-12-07 20:56:09,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 229 transitions. [2019-12-07 20:56:09,978 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 229 transitions. Word has length 30 [2019-12-07 20:56:09,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:56:09,978 INFO L462 AbstractCegarLoop]: Abstraction has 169 states and 229 transitions. [2019-12-07 20:56:09,978 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 20:56:09,978 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 229 transitions. [2019-12-07 20:56:09,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-12-07 20:56:09,980 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:56:09,981 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:56:10,181 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 20:56:10,182 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:56:10,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:56:10,183 INFO L82 PathProgramCache]: Analyzing trace with hash 2043138488, now seen corresponding path program 1 times [2019-12-07 20:56:10,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:56:10,184 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832935745] [2019-12-07 20:56:10,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/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 20:56:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:56:10,390 INFO L264 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 20:56:10,391 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:56:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 20:56:10,402 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:56:10,413 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-07 20:56:10,414 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832935745] [2019-12-07 20:56:10,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:56:10,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 20:56:10,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275300949] [2019-12-07 20:56:10,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 20:56:10,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:56:10,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 20:56:10,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 20:56:10,415 INFO L87 Difference]: Start difference. First operand 169 states and 229 transitions. Second operand 6 states. [2019-12-07 20:56:10,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:56:10,457 INFO L93 Difference]: Finished difference Result 399 states and 539 transitions. [2019-12-07 20:56:10,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:56:10,458 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2019-12-07 20:56:10,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:56:10,459 INFO L225 Difference]: With dead ends: 399 [2019-12-07 20:56:10,459 INFO L226 Difference]: Without dead ends: 236 [2019-12-07 20:56:10,460 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 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 20:56:10,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-12-07 20:56:10,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 148. [2019-12-07 20:56:10,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-12-07 20:56:10,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2019-12-07 20:56:10,471 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 48 [2019-12-07 20:56:10,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:56:10,471 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2019-12-07 20:56:10,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 20:56:10,471 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2019-12-07 20:56:10,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-12-07 20:56:10,472 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:56:10,473 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:56:10,673 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 20:56:10,673 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:56:10,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:56:10,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1197109900, now seen corresponding path program 1 times [2019-12-07 20:56:10,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:56:10,674 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2126638374] [2019-12-07 20:56:10,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/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 20:56:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:56:10,772 INFO L264 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 20:56:10,774 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:56:10,793 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 20:56:10,793 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:56:10,798 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-12-07 20:56:10,798 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2126638374] [2019-12-07 20:56:10,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:56:10,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 20:56:10,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028081159] [2019-12-07 20:56:10,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 20:56:10,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:56:10,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 20:56:10,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 20:56:10,799 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand 6 states. [2019-12-07 20:56:10,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:56:10,921 INFO L93 Difference]: Finished difference Result 766 states and 1050 transitions. [2019-12-07 20:56:10,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 20:56:10,922 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2019-12-07 20:56:10,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:56:10,924 INFO L225 Difference]: With dead ends: 766 [2019-12-07 20:56:10,924 INFO L226 Difference]: Without dead ends: 624 [2019-12-07 20:56:10,925 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2019-12-07 20:56:10,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2019-12-07 20:56:10,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 288. [2019-12-07 20:56:10,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2019-12-07 20:56:10,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 378 transitions. [2019-12-07 20:56:10,947 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 378 transitions. Word has length 49 [2019-12-07 20:56:10,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:56:10,948 INFO L462 AbstractCegarLoop]: Abstraction has 288 states and 378 transitions. [2019-12-07 20:56:10,948 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 20:56:10,948 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 378 transitions. [2019-12-07 20:56:10,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-12-07 20:56:10,949 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:56:10,949 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:56:11,149 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 20:56:11,150 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:56:11,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:56:11,151 INFO L82 PathProgramCache]: Analyzing trace with hash 2022214963, now seen corresponding path program 1 times [2019-12-07 20:56:11,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:56:11,152 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262958692] [2019-12-07 20:56:11,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/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 20:56:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:56:11,297 INFO L264 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 20:56:11,298 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:56:11,323 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:56:11,323 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:56:11,357 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:56:11,357 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262958692] [2019-12-07 20:56:11,357 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1279087750] [2019-12-07 20:56:11,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 20:56:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:56:11,459 INFO L264 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 20:56:11,461 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:56:11,469 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:56:11,469 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:56:11,475 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:56:11,475 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618782987] [2019-12-07 20:56:11,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:56:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:56:11,559 INFO L264 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 20:56:11,560 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:56:11,565 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:56:11,565 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:56:11,570 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-12-07 20:56:11,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2019-12-07 20:56:11,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2019-12-07 20:56:11,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104908363] [2019-12-07 20:56:11,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 20:56:11,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:56:11,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 20:56:11,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 20:56:11,571 INFO L87 Difference]: Start difference. First operand 288 states and 378 transitions. Second operand 10 states. [2019-12-07 20:56:12,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:56:12,297 INFO L93 Difference]: Finished difference Result 1895 states and 2527 transitions. [2019-12-07 20:56:12,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 20:56:12,297 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2019-12-07 20:56:12,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:56:12,304 INFO L225 Difference]: With dead ends: 1895 [2019-12-07 20:56:12,304 INFO L226 Difference]: Without dead ends: 1661 [2019-12-07 20:56:12,305 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 285 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-12-07 20:56:12,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2019-12-07 20:56:12,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 520. [2019-12-07 20:56:12,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2019-12-07 20:56:12,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 692 transitions. [2019-12-07 20:56:12,341 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 692 transitions. Word has length 50 [2019-12-07 20:56:12,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:56:12,342 INFO L462 AbstractCegarLoop]: Abstraction has 520 states and 692 transitions. [2019-12-07 20:56:12,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 20:56:12,342 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 692 transitions. [2019-12-07 20:56:12,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-12-07 20:56:12,342 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:56:12,343 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:56:12,944 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 20:56:12,944 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:56:12,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:56:12,945 INFO L82 PathProgramCache]: Analyzing trace with hash 866267864, now seen corresponding path program 2 times [2019-12-07 20:56:12,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:56:12,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103716055] [2019-12-07 20:56:12,947 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2019-12-07 20:56:13,792 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 20:56:13,792 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 20:56:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:56:14,734 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:56:14,734 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:56:14,935 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2019-12-07 20:56:15,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:56:15 BoogieIcfgContainer [2019-12-07 20:56:15,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:56:15,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:56:15,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:56:15,054 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:56:15,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:56:07" (3/4) ... [2019-12-07 20:56:15,056 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:56:15,134 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e2dce22b-a826-46c5-a91e-79e10dc4c599/bin/utaipan/witness.graphml [2019-12-07 20:56:15,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:56:15,136 INFO L168 Benchmark]: Toolchain (without parser) took 8698.65 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 319.8 MB). Free memory was 952.4 MB in the beginning and 1.2 GB in the end (delta: -218.2 MB). Peak memory consumption was 101.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:56:15,136 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:56:15,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -161.0 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:56:15,136 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:56:15,137 INFO L168 Benchmark]: Boogie Preprocessor took 31.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:56:15,137 INFO L168 Benchmark]: RCFGBuilder took 539.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 11.5 GB. [2019-12-07 20:56:15,137 INFO L168 Benchmark]: TraceAbstraction took 7623.66 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 187.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -177.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:56:15,137 INFO L168 Benchmark]: Witness Printer took 80.87 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:56:15,138 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 372.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -161.0 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 539.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7623.66 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 187.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -177.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Witness Printer took 80.87 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 434]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L155] int pumpRunning = 0; [L156] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L440] int waterLevel = 1; [L441] int methaneLevelCritical = 0; [L703] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L407] int retValue_acc ; [L408] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L414] tmp = valid_product() [L416] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L83] int splverifierCounter ; [L84] int tmp ; [L85] int tmp___0 ; [L86] int tmp___1 ; [L87] int tmp___2 ; [L90] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L92] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L94] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L100] tmp = __VERIFIER_nondet_int() [L102] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L458] COND TRUE waterLevel < 2 [L459] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L110] tmp___0 = __VERIFIER_nondet_int() [L112] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L120] tmp___2 = __VERIFIER_nondet_int() [L122] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L163] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L170] COND TRUE \read(systemActive) [L218] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L221] COND FALSE !(\read(pumpRunning)) [L192] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L195] COND TRUE ! pumpRunning [L315] int retValue_acc ; [L316] int tmp ; [L317] int tmp___0 ; [L520] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L523] COND FALSE !(waterLevel < 2) [L527] retValue_acc = 0 [L528] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L321] tmp = isHighWaterSensorDry() [L323] COND FALSE !(\read(tmp)) [L326] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L328] retValue_acc = tmp___0 [L329] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L197] tmp = isHighWaterLevel() [L199] COND TRUE \read(tmp) [L246] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L901] int tmp ; [L902] int tmp___0 ; [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L906] tmp = getWaterLevel() [L908] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L92] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L94] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L100] tmp = __VERIFIER_nondet_int() [L102] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L110] tmp___0 = __VERIFIER_nondet_int() [L112] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L120] tmp___2 = __VERIFIER_nondet_int() [L122] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L163] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L446] COND TRUE waterLevel > 0 [L447] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L170] COND TRUE \read(systemActive) [L218] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L221] COND TRUE \read(pumpRunning) [L259] int retValue_acc ; [L479] int retValue_acc ; [L482] retValue_acc = methaneLevelCritical [L483] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L263] retValue_acc = isMethaneLevelCritical() [L265] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L223] tmp = isMethaneAlarm() [L225] COND FALSE !(\read(tmp)) [L192] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L195] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L901] int tmp ; [L902] int tmp___0 ; [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L906] tmp = getWaterLevel() [L908] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L92] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L94] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L100] tmp = __VERIFIER_nondet_int() [L102] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L110] tmp___0 = __VERIFIER_nondet_int() [L112] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L120] tmp___2 = __VERIFIER_nondet_int() [L122] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L163] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L446] COND TRUE waterLevel > 0 [L447] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L170] COND TRUE \read(systemActive) [L218] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L221] COND TRUE \read(pumpRunning) [L259] int retValue_acc ; [L479] int retValue_acc ; [L482] retValue_acc = methaneLevelCritical [L483] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L263] retValue_acc = isMethaneLevelCritical() [L265] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L223] tmp = isMethaneAlarm() [L225] COND FALSE !(\read(tmp)) [L192] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L195] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L901] int tmp ; [L902] int tmp___0 ; [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L906] tmp = getWaterLevel() [L908] COND TRUE tmp == 0 [L270] int retValue_acc ; [L273] retValue_acc = pumpRunning [L274] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L910] tmp___0 = isPumpRunning() [L912] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L434] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 111 locations, 3 error locations. Result: UNSAFE, OverallTime: 7.4s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 901 SDtfs, 2344 SDslu, 2158 SDs, 0 SdLazy, 412 SolverSat, 113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 788 GetRequests, 722 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=520occurred 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1895 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 455 NumberOfCodeBlocks, 455 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 750 ConstructedInterpolants, 0 QuantifiedInterpolants, 85605 SizeOfPredicates, 29 NumberOfNonLiveVariables, 2211 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 22 InterpolantComputations, 16 PerfectInterpolantSequences, 86/140 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...