./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.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_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/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 c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 ...................................................................................................................................... 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_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/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 c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:13:51,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:13:51,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:13:51,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:13:51,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:13:51,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:13:51,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:13:51,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:13:51,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:13:51,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:13:51,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:13:51,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:13:51,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:13:51,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:13:51,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:13:51,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:13:51,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:13:51,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:13:51,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:13:51,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:13:51,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:13:51,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:13:51,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:13:51,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:13:51,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:13:51,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:13:51,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:13:51,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:13:51,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:13:51,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:13:51,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:13:51,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:13:51,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:13:51,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:13:51,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:13:51,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:13:51,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:13:51,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:13:51,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:13:51,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:13:51,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:13:51,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:13:51,786 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:13:51,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:13:51,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:13:51,787 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:13:51,787 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:13:51,787 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:13:51,787 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:13:51,788 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:13:51,788 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:13:51,788 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:13:51,788 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:13:51,788 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:13:51,788 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:13:51,788 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:13:51,788 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:13:51,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:13:51,789 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:13:51,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:13:51,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:13:51,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:13:51,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:13:51,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:13:51,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:13:51,790 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:13:51,790 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:13:51,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:13:51,790 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:13:51,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:13:51,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:13:51,791 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:13:51,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:13:51,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:13:51,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:13:51,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:13:51,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:13:51,791 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:13:51,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:13:51,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:13:51,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:13:51,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:13:51,792 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_d3aeea76-3535-42c1-9365-73de015f00a4/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 -> c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 [2019-12-07 20:13:51,892 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:13:51,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:13:51,905 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:13:51,906 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:13:51,906 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:13:51,907 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2019-12-07 20:13:51,949 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/data/402379e4e/7d82362c0c93435883da0996d9810d62/FLAG18ce78d05 [2019-12-07 20:13:52,390 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:13:52,391 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2019-12-07 20:13:52,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/data/402379e4e/7d82362c0c93435883da0996d9810d62/FLAG18ce78d05 [2019-12-07 20:13:52,406 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/data/402379e4e/7d82362c0c93435883da0996d9810d62 [2019-12-07 20:13:52,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:13:52,409 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:13:52,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:13:52,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:13:52,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:13:52,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:13:52" (1/1) ... [2019-12-07 20:13:52,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581b80cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:13:52, skipping insertion in model container [2019-12-07 20:13:52,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:13:52" (1/1) ... [2019-12-07 20:13:52,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:13:52,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:13:52,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:13:52,673 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 20:13:52,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@c51c48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:13:52, skipping insertion in model container [2019-12-07 20:13:52,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:13:52,674 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 20:13:52,675 INFO L168 Benchmark]: Toolchain (without parser) took 265.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -145.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:13:52,676 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:13:52,676 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -150.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:13:52,677 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 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 263.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -150.7 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: 169]: 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 20:13:53,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:13:53,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:13:53,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:13:53,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:13:53,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:13:53,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:13:53,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:13:53,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:13:53,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:13:53,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:13:53,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:13:53,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:13:53,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:13:53,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:13:53,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:13:53,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:13:53,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:13:53,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:13:53,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:13:53,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:13:53,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:13:53,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:13:53,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:13:53,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:13:53,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:13:53,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:13:53,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:13:53,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:13:53,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:13:53,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:13:53,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:13:53,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:13:53,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:13:53,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:13:53,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:13:53,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:13:53,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:13:53,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:13:53,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:13:53,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:13:53,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:13:53,874 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:13:53,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:13:53,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:13:53,875 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:13:53,876 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:13:53,876 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:13:53,876 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:13:53,876 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:13:53,876 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:13:53,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:13:53,877 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:13:53,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:13:53,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:13:53,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:13:53,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:13:53,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:13:53,878 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:13:53,879 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:13:53,879 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:13:53,879 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:13:53,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:13:53,879 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:13:53,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:13:53,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:13:53,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:13:53,880 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:13:53,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:13:53,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:13:53,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:13:53,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:13:53,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:13:53,881 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:13:53,881 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:13:53,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:13:53,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:13:53,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:13:53,882 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_d3aeea76-3535-42c1-9365-73de015f00a4/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 -> c0851c41d1dd56ed840a839dd5bb938ccfe6bf65 [2019-12-07 20:13:54,046 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:13:54,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:13:54,057 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:13:54,058 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:13:54,059 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:13:54,059 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2019-12-07 20:13:54,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/data/a36c80300/d0e7c3388e284907a6a73121e61aa098/FLAG7428cd052 [2019-12-07 20:13:54,476 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:13:54,476 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2019-12-07 20:13:54,484 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/data/a36c80300/d0e7c3388e284907a6a73121e61aa098/FLAG7428cd052 [2019-12-07 20:13:54,492 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/data/a36c80300/d0e7c3388e284907a6a73121e61aa098 [2019-12-07 20:13:54,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:13:54,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:13:54,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:13:54,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:13:54,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:13:54,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:13:54" (1/1) ... [2019-12-07 20:13:54,500 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 08:13:54, skipping insertion in model container [2019-12-07 20:13:54,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:13:54" (1/1) ... [2019-12-07 20:13:54,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:13:54,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:13:54,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:13:54,752 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 20:13:54,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:13:54,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:13:54,809 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:13:54,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:13:54,870 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:13:54,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:13:54 WrapperNode [2019-12-07 20:13:54,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:13:54,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:13:54,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:13:54,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:13:54,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:13:54" (1/1) ... [2019-12-07 20:13:54,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:13:54" (1/1) ... [2019-12-07 20:13:54,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:13:54,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:13:54,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:13:54,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:13:54,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:13:54" (1/1) ... [2019-12-07 20:13:54,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:13:54" (1/1) ... [2019-12-07 20:13:54,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:13:54" (1/1) ... [2019-12-07 20:13:54,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:13:54" (1/1) ... [2019-12-07 20:13:54,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:13:54" (1/1) ... [2019-12-07 20:13:54,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:13:54" (1/1) ... [2019-12-07 20:13:54,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:13:54" (1/1) ... [2019-12-07 20:13:54,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:13:54,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:13:54,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:13:54,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:13:54,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:13:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/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 20:13:54,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:13:54,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 20:13:54,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:13:54,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:13:55,465 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:13:55,465 INFO L287 CfgBuilder]: Removed 116 assume(true) statements. [2019-12-07 20:13:55,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:13:55 BoogieIcfgContainer [2019-12-07 20:13:55,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:13:55,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:13:55,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:13:55,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:13:55,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:13:54" (1/3) ... [2019-12-07 20:13:55,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417113c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:13:55, skipping insertion in model container [2019-12-07 20:13:55,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:13:54" (2/3) ... [2019-12-07 20:13:55,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417113c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:13:55, skipping insertion in model container [2019-12-07 20:13:55,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:13:55" (3/3) ... [2019-12-07 20:13:55,471 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2019-12-07 20:13:55,478 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:13:55,484 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 20:13:55,491 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 20:13:55,507 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:13:55,508 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:13:55,508 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:13:55,508 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:13:55,508 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:13:55,508 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:13:55,508 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:13:55,508 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:13:55,519 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2019-12-07 20:13:55,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 20:13:55,523 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:13:55,524 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:13:55,524 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:13:55,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:13:55,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1594902839, now seen corresponding path program 1 times [2019-12-07 20:13:55,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:13:55,536 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297989611] [2019-12-07 20:13:55,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/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 20:13:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:13:55,659 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:13:55,662 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:13:55,673 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 20:13:55,673 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:13:55,676 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 20:13:55,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297989611] [2019-12-07 20:13:55,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:13:55,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:13:55,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597912257] [2019-12-07 20:13:55,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:13:55,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:13:55,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:13:55,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:13:55,692 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2019-12-07 20:13:55,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:13:55,711 INFO L93 Difference]: Finished difference Result 168 states and 251 transitions. [2019-12-07 20:13:55,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:13:55,713 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 20:13:55,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:13:55,724 INFO L225 Difference]: With dead ends: 168 [2019-12-07 20:13:55,724 INFO L226 Difference]: Without dead ends: 83 [2019-12-07 20:13:55,727 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 20:13:55,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-12-07 20:13:55,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-12-07 20:13:55,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-12-07 20:13:55,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2019-12-07 20:13:55,758 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2019-12-07 20:13:55,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:13:55,758 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2019-12-07 20:13:55,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:13:55,758 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2019-12-07 20:13:55,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 20:13:55,759 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:13:55,759 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 20:13:55,960 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:13:55,960 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:13:55,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:13:55,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1653307560, now seen corresponding path program 1 times [2019-12-07 20:13:55,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:13:55,962 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297408669] [2019-12-07 20:13:55,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/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 20:13:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:13:56,124 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:13:56,125 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:13:56,140 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 20:13:56,140 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:13:56,150 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 20:13:56,151 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297408669] [2019-12-07 20:13:56,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:13:56,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:13:56,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522324121] [2019-12-07 20:13:56,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:13:56,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:13:56,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:13:56,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:13:56,154 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 4 states. [2019-12-07 20:13:56,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:13:56,167 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2019-12-07 20:13:56,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:13:56,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 20:13:56,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:13:56,169 INFO L225 Difference]: With dead ends: 83 [2019-12-07 20:13:56,169 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 20:13:56,170 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 20:13:56,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 20:13:56,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-12-07 20:13:56,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 20:13:56,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2019-12-07 20:13:56,176 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2019-12-07 20:13:56,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:13:56,176 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2019-12-07 20:13:56,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:13:56,176 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2019-12-07 20:13:56,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 20:13:56,177 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:13:56,177 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 20:13:56,378 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:13:56,378 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:13:56,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:13:56,379 INFO L82 PathProgramCache]: Analyzing trace with hash 533078269, now seen corresponding path program 1 times [2019-12-07 20:13:56,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:13:56,379 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573246628] [2019-12-07 20:13:56,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/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 20:13:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:13:56,488 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:13:56,489 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:13:56,499 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 20:13:56,499 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:13:56,506 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 20:13:56,506 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573246628] [2019-12-07 20:13:56,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:13:56,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:13:56,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720452223] [2019-12-07 20:13:56,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:13:56,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:13:56,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:13:56,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:13:56,508 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 4 states. [2019-12-07 20:13:56,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:13:56,558 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2019-12-07 20:13:56,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:13:56,559 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 20:13:56,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:13:56,560 INFO L225 Difference]: With dead ends: 68 [2019-12-07 20:13:56,560 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 20:13:56,560 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 20:13:56,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 20:13:56,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-12-07 20:13:56,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 20:13:56,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2019-12-07 20:13:56,566 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2019-12-07 20:13:56,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:13:56,567 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2019-12-07 20:13:56,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:13:56,567 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2019-12-07 20:13:56,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-12-07 20:13:56,568 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:13:56,568 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] [2019-12-07 20:13:56,768 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:13:56,769 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:13:56,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:13:56,769 INFO L82 PathProgramCache]: Analyzing trace with hash 545820985, now seen corresponding path program 1 times [2019-12-07 20:13:56,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:13:56,769 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860090122] [2019-12-07 20:13:56,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/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 20:13:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:13:56,871 INFO L264 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:13:56,872 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:13:56,878 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 20:13:56,878 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:13:56,880 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 20:13:56,880 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [860090122] [2019-12-07 20:13:56,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:13:56,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:13:56,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184577906] [2019-12-07 20:13:56,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:13:56,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:13:56,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:13:56,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:13:56,882 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2019-12-07 20:13:56,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:13:56,929 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2019-12-07 20:13:56,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:13:56,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-12-07 20:13:56,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:13:56,930 INFO L225 Difference]: With dead ends: 89 [2019-12-07 20:13:56,930 INFO L226 Difference]: Without dead ends: 58 [2019-12-07 20:13:56,931 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 20:13:56,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-12-07 20:13:56,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2019-12-07 20:13:56,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 20:13:56,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2019-12-07 20:13:56,938 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2019-12-07 20:13:56,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:13:56,938 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2019-12-07 20:13:56,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:13:56,938 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2019-12-07 20:13:56,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 20:13:56,939 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:13:56,939 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] [2019-12-07 20:13:57,140 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 20:13:57,140 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:13:57,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:13:57,141 INFO L82 PathProgramCache]: Analyzing trace with hash 2110814541, now seen corresponding path program 1 times [2019-12-07 20:13:57,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:13:57,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866352090] [2019-12-07 20:13:57,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/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 20:13:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:13:57,266 INFO L264 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:13:57,267 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:13:57,282 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 20:13:57,282 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:13:57,306 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 20:13:57,306 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866352090] [2019-12-07 20:13:57,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:13:57,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-12-07 20:13:57,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353947823] [2019-12-07 20:13:57,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 20:13:57,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:13:57,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 20:13:57,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 20:13:57,307 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 8 states. [2019-12-07 20:13:57,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:13:57,503 INFO L93 Difference]: Finished difference Result 390 states and 569 transitions. [2019-12-07 20:13:57,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 20:13:57,504 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2019-12-07 20:13:57,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:13:57,506 INFO L225 Difference]: With dead ends: 390 [2019-12-07 20:13:57,506 INFO L226 Difference]: Without dead ends: 340 [2019-12-07 20:13:57,507 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2019-12-07 20:13:57,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-12-07 20:13:57,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 140. [2019-12-07 20:13:57,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-12-07 20:13:57,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 193 transitions. [2019-12-07 20:13:57,525 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 193 transitions. Word has length 29 [2019-12-07 20:13:57,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:13:57,525 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 193 transitions. [2019-12-07 20:13:57,525 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 20:13:57,526 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 193 transitions. [2019-12-07 20:13:57,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-12-07 20:13:57,527 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:13:57,527 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] [2019-12-07 20:13:57,728 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 20:13:57,729 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:13:57,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:13:57,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1559974996, now seen corresponding path program 1 times [2019-12-07 20:13:57,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:13:57,730 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354175557] [2019-12-07 20:13:57,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/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 20:13:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:13:57,858 INFO L264 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:13:57,860 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:13:57,886 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 20:13:57,886 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:13:57,890 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 20:13:57,890 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354175557] [2019-12-07 20:13:57,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:13:57,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 20:13:57,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031673044] [2019-12-07 20:13:57,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:13:57,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:13:57,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:13:57,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:13:57,891 INFO L87 Difference]: Start difference. First operand 140 states and 193 transitions. Second operand 5 states. [2019-12-07 20:13:57,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:13:57,944 INFO L93 Difference]: Finished difference Result 388 states and 531 transitions. [2019-12-07 20:13:57,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 20:13:57,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-12-07 20:13:57,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:13:57,946 INFO L225 Difference]: With dead ends: 388 [2019-12-07 20:13:57,946 INFO L226 Difference]: Without dead ends: 254 [2019-12-07 20:13:57,947 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 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 20:13:57,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-12-07 20:13:57,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 149. [2019-12-07 20:13:57,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-12-07 20:13:57,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 202 transitions. [2019-12-07 20:13:57,960 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 202 transitions. Word has length 47 [2019-12-07 20:13:57,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:13:57,960 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 202 transitions. [2019-12-07 20:13:57,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:13:57,960 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 202 transitions. [2019-12-07 20:13:57,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-12-07 20:13:57,962 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:13:57,962 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] [2019-12-07 20:13:58,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 20:13:58,163 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:13:58,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:13:58,163 INFO L82 PathProgramCache]: Analyzing trace with hash -2069448086, now seen corresponding path program 1 times [2019-12-07 20:13:58,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:13:58,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782347513] [2019-12-07 20:13:58,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/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 20:13:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:13:58,285 INFO L264 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 20:13:58,286 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:13:58,295 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 20:13:58,295 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:13:58,306 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 20:13:58,306 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782347513] [2019-12-07 20:13:58,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:13:58,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 20:13:58,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142416182] [2019-12-07 20:13:58,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 20:13:58,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:13:58,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 20:13:58,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 20:13:58,307 INFO L87 Difference]: Start difference. First operand 149 states and 202 transitions. Second operand 6 states. [2019-12-07 20:13:58,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:13:58,348 INFO L93 Difference]: Finished difference Result 337 states and 458 transitions. [2019-12-07 20:13:58,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:13:58,349 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2019-12-07 20:13:58,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:13:58,350 INFO L225 Difference]: With dead ends: 337 [2019-12-07 20:13:58,350 INFO L226 Difference]: Without dead ends: 194 [2019-12-07 20:13:58,351 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 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 20:13:58,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-12-07 20:13:58,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 123. [2019-12-07 20:13:58,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-12-07 20:13:58,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 164 transitions. [2019-12-07 20:13:58,361 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 164 transitions. Word has length 47 [2019-12-07 20:13:58,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:13:58,361 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 164 transitions. [2019-12-07 20:13:58,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 20:13:58,362 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 164 transitions. [2019-12-07 20:13:58,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-12-07 20:13:58,362 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:13:58,363 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] [2019-12-07 20:13:58,563 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 20:13:58,564 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:13:58,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:13:58,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1874975382, now seen corresponding path program 1 times [2019-12-07 20:13:58,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:13:58,565 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087465034] [2019-12-07 20:13:58,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/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 20:13:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:13:58,691 INFO L264 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 20:13:58,693 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:13:58,713 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 20:13:58,713 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:13:58,745 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 20:13:58,745 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087465034] [2019-12-07 20:13:58,745 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [736990531] [2019-12-07 20:13:58,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-12-07 20:13:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:13:58,839 INFO L264 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 20:13:58,840 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:13:58,851 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 20:13:58,852 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:13:58,857 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 20:13:58,857 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323092399] [2019-12-07 20:13:58,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:13:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:13:58,949 INFO L264 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 20:13:58,951 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:13:58,962 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 20:13:58,962 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:13:58,969 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 20:13:58,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2019-12-07 20:13:58,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2019-12-07 20:13:58,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369184127] [2019-12-07 20:13:58,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 20:13:58,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:13:58,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 20:13:58,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 20:13:58,970 INFO L87 Difference]: Start difference. First operand 123 states and 164 transitions. Second operand 10 states. [2019-12-07 20:13:59,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:13:59,528 INFO L93 Difference]: Finished difference Result 751 states and 1038 transitions. [2019-12-07 20:13:59,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-07 20:13:59,528 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2019-12-07 20:13:59,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:13:59,531 INFO L225 Difference]: With dead ends: 751 [2019-12-07 20:13:59,531 INFO L226 Difference]: Without dead ends: 657 [2019-12-07 20:13:59,532 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 270 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-12-07 20:13:59,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2019-12-07 20:13:59,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 223. [2019-12-07 20:13:59,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2019-12-07 20:13:59,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 304 transitions. [2019-12-07 20:13:59,549 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 304 transitions. Word has length 48 [2019-12-07 20:13:59,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:13:59,549 INFO L462 AbstractCegarLoop]: Abstraction has 223 states and 304 transitions. [2019-12-07 20:13:59,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 20:13:59,549 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 304 transitions. [2019-12-07 20:13:59,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-12-07 20:13:59,550 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:13:59,550 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 20:14:00,151 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt --rewrite-divk,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:14:00,152 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:14:00,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:14:00,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1478909471, now seen corresponding path program 2 times [2019-12-07 20:14:00,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:14:00,154 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829603210] [2019-12-07 20:14:00,155 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 20:14:00,950 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 20:14:00,950 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2019-12-07 20:14:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:14:01,700 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:14:01,700 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:14:01,901 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 20:14:02,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:14:02 BoogieIcfgContainer [2019-12-07 20:14:02,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:14:02,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:14:02,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:14:02,017 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:14:02,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:13:55" (3/4) ... [2019-12-07 20:14:02,019 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:14:02,104 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d3aeea76-3535-42c1-9365-73de015f00a4/bin/utaipan/witness.graphml [2019-12-07 20:14:02,104 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:14:02,105 INFO L168 Benchmark]: Toolchain (without parser) took 7610.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.2 MB). Free memory was 952.4 MB in the beginning and 810.1 MB in the end (delta: 142.3 MB). Peak memory consumption was 351.5 MB. Max. memory is 11.5 GB. [2019-12-07 20:14:02,106 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:14:02,106 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-12-07 20:14:02,106 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:14:02,106 INFO L168 Benchmark]: Boogie Preprocessor took 34.02 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 20:14:02,106 INFO L168 Benchmark]: RCFGBuilder took 516.81 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: 80.3 MB). Peak memory consumption was 80.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:14:02,107 INFO L168 Benchmark]: TraceAbstraction took 6549.41 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 74.4 MB). Free memory was 1.0 GB in the beginning and 840.2 MB in the end (delta: 182.3 MB). Peak memory consumption was 256.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:14:02,107 INFO L168 Benchmark]: Witness Printer took 87.83 ms. Allocated memory is still 1.2 GB. Free memory was 840.2 MB in the beginning and 810.1 MB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:14:02,108 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 375.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.02 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 516.81 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: 80.3 MB). Peak memory consumption was 80.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6549.41 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 74.4 MB). Free memory was 1.0 GB in the beginning and 840.2 MB in the end (delta: 182.3 MB). Peak memory consumption was 256.8 MB. Max. memory is 11.5 GB. * Witness Printer took 87.83 ms. Allocated memory is still 1.2 GB. Free memory was 840.2 MB in the beginning and 810.1 MB in the end (delta: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 924]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L573] int cleanupTimeShifts = 4; [L742] int pumpRunning = 0; [L743] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L649] int retValue_acc ; [L650] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L656] tmp = valid_product() [L658] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L674] int splverifierCounter ; [L675] int tmp ; [L676] int tmp___0 ; [L677] int tmp___1 ; [L678] int tmp___2 ; [L681] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L683] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L685] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L691] tmp = __VERIFIER_nondet_int() [L693] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND TRUE \read(tmp___2) [L915] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L749] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] COND TRUE \read(systemActive) [L778] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L781] COND TRUE ! pumpRunning [L893] int retValue_acc ; [L894] int tmp ; [L895] int tmp___0 ; [L127] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] tmp = isHighWaterSensorDry() [L901] COND FALSE !(\read(tmp)) [L904] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L906] retValue_acc = tmp___0 [L907] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L783] tmp = isHighWaterLevel() [L785] COND TRUE \read(tmp) [L812] int tmp ; [L837] int retValue_acc ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L841] retValue_acc = isMethaneLevelCritical() [L843] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L816] tmp = isMethaneAlarm() [L818] COND FALSE !(\read(tmp)) [L806] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L548] int tmp ; [L549] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L683] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L685] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND TRUE \read(tmp___2) [L915] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L749] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L756] COND TRUE \read(systemActive) [L778] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L781] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L548] int tmp ; [L549] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L553] tmp = getWaterLevel() [L555] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L683] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L685] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L691] tmp = __VERIFIER_nondet_int() [L693] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L701] tmp___0 = __VERIFIER_nondet_int() [L703] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L711] tmp___2 = __VERIFIER_nondet_int() [L713] COND TRUE \read(tmp___2) [L915] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L749] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L756] COND TRUE \read(systemActive) [L778] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L781] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L548] int tmp ; [L549] int tmp___0 ; [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L553] tmp = getWaterLevel() [L555] COND TRUE tmp == 0 [L848] int retValue_acc ; [L851] retValue_acc = pumpRunning [L852] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L557] tmp___0 = isPumpRunning() [L559] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L924] __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, 87 locations, 3 error locations. Result: UNSAFE, OverallTime: 6.3s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 632 SDtfs, 1449 SDslu, 1513 SDs, 0 SdLazy, 301 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 702 GetRequests, 643 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 812 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 408 NumberOfCodeBlocks, 408 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 670 ConstructedInterpolants, 0 QuantifiedInterpolants, 75790 SizeOfPredicates, 24 NumberOfNonLiveVariables, 2015 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 20 InterpolantComputations, 14 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...