./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product39.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_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/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 f2f38c4f83f0a2ec969b4b77f5129e3dfefde6fe ...................................................................................................................................... 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_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/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 f2f38c4f83f0a2ec969b4b77f5129e3dfefde6fe ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 10:22:24,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:22:24,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:22:24,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:22:24,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:22:24,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:22:24,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:22:24,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:22:24,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:22:24,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:22:24,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:22:24,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:22:24,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:22:24,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:22:24,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:22:24,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:22:24,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:22:24,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:22:24,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:22:24,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:22:24,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:22:24,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:22:24,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:22:24,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:22:24,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:22:24,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:22:24,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:22:24,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:22:24,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:22:24,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:22:24,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:22:24,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:22:24,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:22:24,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:22:24,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:22:24,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:22:24,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:22:24,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:22:24,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:22:24,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:22:24,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:22:24,829 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 10:22:24,841 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:22:24,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:22:24,842 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:22:24,843 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:22:24,843 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:22:24,843 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:22:24,843 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 10:22:24,843 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:22:24,843 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:22:24,843 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 10:22:24,844 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 10:22:24,844 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:22:24,844 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 10:22:24,844 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 10:22:24,844 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 10:22:24,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:22:24,845 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:22:24,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:22:24,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:22:24,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:22:24,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:22:24,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:22:24,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:22:24,846 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:22:24,846 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:22:24,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:22:24,846 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:22:24,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:22:24,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:22:24,847 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:22:24,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:22:24,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:22:24,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:22:24,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:22:24,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:22:24,847 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 10:22:24,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:22:24,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:22:24,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:22:24,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:22:24,848 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_1e04dc3d-0f04-470a-ad1e-858bc1726332/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 -> f2f38c4f83f0a2ec969b4b77f5129e3dfefde6fe [2019-12-07 10:22:24,954 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:22:24,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:22:24,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:22:24,965 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:22:24,965 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:22:24,966 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2019-12-07 10:22:25,002 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/data/6a195f86d/2f33fc0a429548a5b02cead486b68719/FLAG620692acd [2019-12-07 10:22:25,373 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:22:25,374 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2019-12-07 10:22:25,381 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/data/6a195f86d/2f33fc0a429548a5b02cead486b68719/FLAG620692acd [2019-12-07 10:22:25,390 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/data/6a195f86d/2f33fc0a429548a5b02cead486b68719 [2019-12-07 10:22:25,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:22:25,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:22:25,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:22:25,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:22:25,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:22:25,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:22:25" (1/1) ... [2019-12-07 10:22:25,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:25, skipping insertion in model container [2019-12-07 10:22:25,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:22:25" (1/1) ... [2019-12-07 10:22:25,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:22:25,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:22:25,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:22:25,652 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 10:22:25,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3df8ecb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:25, skipping insertion in model container [2019-12-07 10:22:25,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:22:25,653 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 10:22:25,655 INFO L168 Benchmark]: Toolchain (without parser) took 262.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 938.9 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:25,656 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:22:25,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -160.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:25,657 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 260.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 933.5 MB in the beginning and 1.1 GB in the end (delta: -160.2 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 68]: 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 10:22:26,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:22:26,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:22:26,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:22:26,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:22:26,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:22:26,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:22:26,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:22:26,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:22:26,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:22:26,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:22:26,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:22:26,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:22:26,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:22:26,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:22:26,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:22:26,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:22:26,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:22:26,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:22:26,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:22:26,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:22:26,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:22:26,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:22:26,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:22:26,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:22:26,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:22:26,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:22:26,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:22:26,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:22:26,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:22:26,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:22:26,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:22:26,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:22:26,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:22:26,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:22:26,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:22:26,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:22:26,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:22:26,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:22:26,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:22:26,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:22:26,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 10:22:26,884 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:22:26,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:22:26,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:22:26,885 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:22:26,885 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:22:26,885 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:22:26,885 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:22:26,885 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:22:26,886 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:22:26,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:22:26,886 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:22:26,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:22:26,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:22:26,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:22:26,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:22:26,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:22:26,887 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:22:26,887 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 10:22:26,887 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 10:22:26,887 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:22:26,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:22:26,887 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:22:26,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:22:26,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:22:26,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:22:26,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:22:26,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:22:26,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:22:26,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:22:26,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:22:26,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:22:26,889 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 10:22:26,889 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 10:22:26,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:22:26,889 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:22:26,889 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:22:26,889 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_1e04dc3d-0f04-470a-ad1e-858bc1726332/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 -> f2f38c4f83f0a2ec969b4b77f5129e3dfefde6fe [2019-12-07 10:22:27,059 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:22:27,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:22:27,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:22:27,074 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:22:27,074 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:22:27,075 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2019-12-07 10:22:27,114 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/data/d7bd6bb16/70ad52d4f5254028baa4395913ff01ac/FLAGf7f983a7b [2019-12-07 10:22:27,610 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:22:27,610 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2019-12-07 10:22:27,618 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/data/d7bd6bb16/70ad52d4f5254028baa4395913ff01ac/FLAGf7f983a7b [2019-12-07 10:22:27,627 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/data/d7bd6bb16/70ad52d4f5254028baa4395913ff01ac [2019-12-07 10:22:27,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:22:27,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:22:27,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:22:27,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:22:27,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:22:27,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:22:27" (1/1) ... [2019-12-07 10:22:27,635 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 10:22:27, skipping insertion in model container [2019-12-07 10:22:27,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:22:27" (1/1) ... [2019-12-07 10:22:27,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:22:27,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:22:27,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:22:27,899 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 10:22:27,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:22:27,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:22:27,947 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:22:27,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:22:28,007 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:22:28,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:28 WrapperNode [2019-12-07 10:22:28,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:22:28,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:22:28,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:22:28,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:22:28,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:28" (1/1) ... [2019-12-07 10:22:28,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:28" (1/1) ... [2019-12-07 10:22:28,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:22:28,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:22:28,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:22:28,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:22:28,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:28" (1/1) ... [2019-12-07 10:22:28,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:28" (1/1) ... [2019-12-07 10:22:28,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:28" (1/1) ... [2019-12-07 10:22:28,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:28" (1/1) ... [2019-12-07 10:22:28,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:28" (1/1) ... [2019-12-07 10:22:28,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:28" (1/1) ... [2019-12-07 10:22:28,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:28" (1/1) ... [2019-12-07 10:22:28,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:22:28,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:22:28,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:22:28,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:22:28,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/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 10:22:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 10:22:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 10:22:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:22:28,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:22:28,662 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:22:28,662 INFO L287 CfgBuilder]: Removed 160 assume(true) statements. [2019-12-07 10:22:28,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:22:28 BoogieIcfgContainer [2019-12-07 10:22:28,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:22:28,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:22:28,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:22:28,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:22:28,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:22:27" (1/3) ... [2019-12-07 10:22:28,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507b69a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:22:28, skipping insertion in model container [2019-12-07 10:22:28,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:22:28" (2/3) ... [2019-12-07 10:22:28,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507b69a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:22:28, skipping insertion in model container [2019-12-07 10:22:28,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:22:28" (3/3) ... [2019-12-07 10:22:28,671 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2019-12-07 10:22:28,680 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:22:28,684 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 10:22:28,692 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 10:22:28,708 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:22:28,708 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:22:28,708 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:22:28,708 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:22:28,708 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:22:28,708 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:22:28,708 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:22:28,708 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:22:28,721 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-12-07 10:22:28,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 10:22:28,725 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:28,725 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:28,726 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:28,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:28,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1221872895, now seen corresponding path program 1 times [2019-12-07 10:22:28,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:28,738 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885089733] [2019-12-07 10:22:28,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/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 10:22:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:28,869 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 10:22:28,873 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:28,883 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 10:22:28,884 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:28,888 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 10:22:28,889 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885089733] [2019-12-07 10:22:28,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:28,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 10:22:28,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996575785] [2019-12-07 10:22:28,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 10:22:28,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:28,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 10:22:28,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 10:22:28,904 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-12-07 10:22:28,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:28,929 INFO L93 Difference]: Finished difference Result 220 states and 335 transitions. [2019-12-07 10:22:28,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 10:22:28,930 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 10:22:28,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:28,938 INFO L225 Difference]: With dead ends: 220 [2019-12-07 10:22:28,938 INFO L226 Difference]: Without dead ends: 109 [2019-12-07 10:22:28,941 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 10:22:28,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-12-07 10:22:28,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-12-07 10:22:28,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-12-07 10:22:28,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2019-12-07 10:22:28,971 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 16 [2019-12-07 10:22:28,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:28,972 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2019-12-07 10:22:28,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 10:22:28,972 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2019-12-07 10:22:28,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 10:22:28,973 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:28,973 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 10:22:29,174 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 10:22:29,175 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:29,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:29,176 INFO L82 PathProgramCache]: Analyzing trace with hash 175115998, now seen corresponding path program 1 times [2019-12-07 10:22:29,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:29,178 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2147474827] [2019-12-07 10:22:29,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/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 10:22:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:29,343 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:22:29,345 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:29,359 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 10:22:29,359 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:29,367 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 10:22:29,367 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2147474827] [2019-12-07 10:22:29,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:29,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 10:22:29,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986148764] [2019-12-07 10:22:29,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:22:29,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:29,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:22:29,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:22:29,369 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand 4 states. [2019-12-07 10:22:29,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:29,383 INFO L93 Difference]: Finished difference Result 109 states and 159 transitions. [2019-12-07 10:22:29,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:22:29,383 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 10:22:29,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:29,384 INFO L225 Difference]: With dead ends: 109 [2019-12-07 10:22:29,384 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 10:22:29,386 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 10:22:29,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 10:22:29,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-12-07 10:22:29,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-12-07 10:22:29,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2019-12-07 10:22:29,392 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2019-12-07 10:22:29,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:29,392 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2019-12-07 10:22:29,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:22:29,392 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2019-12-07 10:22:29,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 10:22:29,393 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:29,394 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 10:22:29,594 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 10:22:29,594 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:29,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:29,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1744081540, now seen corresponding path program 1 times [2019-12-07 10:22:29,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:29,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424846276] [2019-12-07 10:22:29,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/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 10:22:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:29,707 INFO L264 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:22:29,708 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:29,716 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 10:22:29,716 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:29,723 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 10:22:29,723 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424846276] [2019-12-07 10:22:29,723 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:29,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 10:22:29,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164683329] [2019-12-07 10:22:29,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:22:29,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:29,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:22:29,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:22:29,725 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 4 states. [2019-12-07 10:22:29,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:29,747 INFO L93 Difference]: Finished difference Result 152 states and 226 transitions. [2019-12-07 10:22:29,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:22:29,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 10:22:29,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:29,749 INFO L225 Difference]: With dead ends: 152 [2019-12-07 10:22:29,749 INFO L226 Difference]: Without dead ends: 111 [2019-12-07 10:22:29,750 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 10:22:29,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-12-07 10:22:29,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 66. [2019-12-07 10:22:29,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-12-07 10:22:29,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions. [2019-12-07 10:22:29,763 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 22 [2019-12-07 10:22:29,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:29,763 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 97 transitions. [2019-12-07 10:22:29,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:22:29,763 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions. [2019-12-07 10:22:29,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 10:22:29,764 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:29,765 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:29,965 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 10:22:29,966 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:29,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:29,967 INFO L82 PathProgramCache]: Analyzing trace with hash -595366227, now seen corresponding path program 1 times [2019-12-07 10:22:29,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:29,968 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063880398] [2019-12-07 10:22:29,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/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 10:22:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:30,114 INFO L264 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:22:30,115 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:30,120 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 10:22:30,121 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:30,123 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 10:22:30,123 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063880398] [2019-12-07 10:22:30,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:30,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 10:22:30,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744218685] [2019-12-07 10:22:30,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 10:22:30,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:30,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 10:22:30,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:22:30,125 INFO L87 Difference]: Start difference. First operand 66 states and 97 transitions. Second operand 3 states. [2019-12-07 10:22:30,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:30,184 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2019-12-07 10:22:30,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:22:30,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 10:22:30,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:30,186 INFO L225 Difference]: With dead ends: 147 [2019-12-07 10:22:30,187 INFO L226 Difference]: Without dead ends: 87 [2019-12-07 10:22:30,187 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 10:22:30,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-12-07 10:22:30,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2019-12-07 10:22:30,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-12-07 10:22:30,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 121 transitions. [2019-12-07 10:22:30,198 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 121 transitions. Word has length 24 [2019-12-07 10:22:30,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:30,199 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 121 transitions. [2019-12-07 10:22:30,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 10:22:30,199 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 121 transitions. [2019-12-07 10:22:30,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 10:22:30,200 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:30,200 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:30,401 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 10:22:30,402 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:30,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:30,403 INFO L82 PathProgramCache]: Analyzing trace with hash 566175321, now seen corresponding path program 1 times [2019-12-07 10:22:30,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:30,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501336556] [2019-12-07 10:22:30,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/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 10:22:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:30,543 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 10:22:30,545 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:30,558 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 10:22:30,559 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:30,566 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 10:22:30,566 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501336556] [2019-12-07 10:22:30,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:30,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 10:22:30,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679390220] [2019-12-07 10:22:30,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:22:30,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:30,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:22:30,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:22:30,567 INFO L87 Difference]: Start difference. First operand 85 states and 121 transitions. Second operand 5 states. [2019-12-07 10:22:30,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:30,645 INFO L93 Difference]: Finished difference Result 413 states and 601 transitions. [2019-12-07 10:22:30,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 10:22:30,646 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 10:22:30,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:30,648 INFO L225 Difference]: With dead ends: 413 [2019-12-07 10:22:30,648 INFO L226 Difference]: Without dead ends: 334 [2019-12-07 10:22:30,649 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 10:22:30,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-12-07 10:22:30,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 156. [2019-12-07 10:22:30,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-12-07 10:22:30,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 220 transitions. [2019-12-07 10:22:30,664 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 220 transitions. Word has length 25 [2019-12-07 10:22:30,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:30,665 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 220 transitions. [2019-12-07 10:22:30,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:22:30,665 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 220 transitions. [2019-12-07 10:22:30,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 10:22:30,666 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:30,666 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] [2019-12-07 10:22:30,866 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 10:22:30,868 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:30,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:30,869 INFO L82 PathProgramCache]: Analyzing trace with hash 362368227, now seen corresponding path program 1 times [2019-12-07 10:22:30,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:30,870 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263263880] [2019-12-07 10:22:30,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/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 10:22:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:31,086 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 10:22:31,087 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:31,099 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 10:22:31,100 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:31,102 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 10:22:31,102 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263263880] [2019-12-07 10:22:31,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:31,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 10:22:31,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985550455] [2019-12-07 10:22:31,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:22:31,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:31,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:22:31,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:22:31,104 INFO L87 Difference]: Start difference. First operand 156 states and 220 transitions. Second operand 5 states. [2019-12-07 10:22:31,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:31,255 INFO L93 Difference]: Finished difference Result 436 states and 619 transitions. [2019-12-07 10:22:31,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 10:22:31,255 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-12-07 10:22:31,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:31,258 INFO L225 Difference]: With dead ends: 436 [2019-12-07 10:22:31,258 INFO L226 Difference]: Without dead ends: 434 [2019-12-07 10:22:31,259 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 10:22:31,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-12-07 10:22:31,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 156. [2019-12-07 10:22:31,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-12-07 10:22:31,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 218 transitions. [2019-12-07 10:22:31,277 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 218 transitions. Word has length 26 [2019-12-07 10:22:31,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:31,277 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 218 transitions. [2019-12-07 10:22:31,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:22:31,278 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 218 transitions. [2019-12-07 10:22:31,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 10:22:31,279 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:31,279 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:31,479 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 10:22:31,481 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:31,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:31,481 INFO L82 PathProgramCache]: Analyzing trace with hash 922855028, now seen corresponding path program 1 times [2019-12-07 10:22:31,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:31,483 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535172951] [2019-12-07 10:22:31,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/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 10:22:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:31,643 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 10:22:31,645 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:31,655 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 10:22:31,655 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:31,658 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 10:22:31,658 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535172951] [2019-12-07 10:22:31,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:31,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 10:22:31,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589336232] [2019-12-07 10:22:31,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 10:22:31,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:31,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 10:22:31,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 10:22:31,660 INFO L87 Difference]: Start difference. First operand 156 states and 218 transitions. Second operand 5 states. [2019-12-07 10:22:31,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:31,722 INFO L93 Difference]: Finished difference Result 468 states and 648 transitions. [2019-12-07 10:22:31,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 10:22:31,723 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 10:22:31,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:31,725 INFO L225 Difference]: With dead ends: 468 [2019-12-07 10:22:31,725 INFO L226 Difference]: Without dead ends: 318 [2019-12-07 10:22:31,726 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 10:22:31,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2019-12-07 10:22:31,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 168. [2019-12-07 10:22:31,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-12-07 10:22:31,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 230 transitions. [2019-12-07 10:22:31,742 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 230 transitions. Word has length 31 [2019-12-07 10:22:31,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:31,743 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 230 transitions. [2019-12-07 10:22:31,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 10:22:31,743 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 230 transitions. [2019-12-07 10:22:31,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 10:22:31,744 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:31,744 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:31,945 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 10:22:31,946 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:31,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:31,947 INFO L82 PathProgramCache]: Analyzing trace with hash 529828018, now seen corresponding path program 1 times [2019-12-07 10:22:31,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:31,948 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322152682] [2019-12-07 10:22:31,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/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 10:22:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:32,066 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:22:32,067 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:32,074 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 10:22:32,074 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:32,083 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 10:22:32,084 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322152682] [2019-12-07 10:22:32,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:32,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 10:22:32,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994669345] [2019-12-07 10:22:32,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 10:22:32,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:32,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 10:22:32,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 10:22:32,085 INFO L87 Difference]: Start difference. First operand 168 states and 230 transitions. Second operand 6 states. [2019-12-07 10:22:32,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:32,138 INFO L93 Difference]: Finished difference Result 502 states and 682 transitions. [2019-12-07 10:22:32,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 10:22:32,139 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-12-07 10:22:32,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:32,140 INFO L225 Difference]: With dead ends: 502 [2019-12-07 10:22:32,140 INFO L226 Difference]: Without dead ends: 340 [2019-12-07 10:22:32,141 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 10:22:32,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-12-07 10:22:32,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 176. [2019-12-07 10:22:32,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2019-12-07 10:22:32,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 238 transitions. [2019-12-07 10:22:32,152 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 238 transitions. Word has length 31 [2019-12-07 10:22:32,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:32,152 INFO L462 AbstractCegarLoop]: Abstraction has 176 states and 238 transitions. [2019-12-07 10:22:32,152 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 10:22:32,152 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 238 transitions. [2019-12-07 10:22:32,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 10:22:32,153 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:32,153 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:32,353 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 10:22:32,354 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:32,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:32,354 INFO L82 PathProgramCache]: Analyzing trace with hash 787993456, now seen corresponding path program 1 times [2019-12-07 10:22:32,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:32,355 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068007482] [2019-12-07 10:22:32,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 10:22:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:22:32,445 INFO L264 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:22:32,446 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:22:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:22:32,452 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:22:32,459 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 10:22:32,459 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068007482] [2019-12-07 10:22:32,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:22:32,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 10:22:32,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122460625] [2019-12-07 10:22:32,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:22:32,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:22:32,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:22:32,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:22:32,460 INFO L87 Difference]: Start difference. First operand 176 states and 238 transitions. Second operand 4 states. [2019-12-07 10:22:32,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:22:32,513 INFO L93 Difference]: Finished difference Result 576 states and 782 transitions. [2019-12-07 10:22:32,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 10:22:32,513 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-07 10:22:32,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:22:32,516 INFO L225 Difference]: With dead ends: 576 [2019-12-07 10:22:32,516 INFO L226 Difference]: Without dead ends: 406 [2019-12-07 10:22:32,517 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:22:32,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2019-12-07 10:22:32,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 316. [2019-12-07 10:22:32,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2019-12-07 10:22:32,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 423 transitions. [2019-12-07 10:22:32,546 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 423 transitions. Word has length 31 [2019-12-07 10:22:32,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:22:32,546 INFO L462 AbstractCegarLoop]: Abstraction has 316 states and 423 transitions. [2019-12-07 10:22:32,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:22:32,546 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 423 transitions. [2019-12-07 10:22:32,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 10:22:32,547 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:22:32,547 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 10:22:32,747 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 10:22:32,748 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:22:32,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:22:32,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1324766414, now seen corresponding path program 1 times [2019-12-07 10:22:32,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:22:32,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590589543] [2019-12-07 10:22:32,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 10:22:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:22:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:22:34,494 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 10:22:34,494 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:22:34,695 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 10:22:34,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:22:34 BoogieIcfgContainer [2019-12-07 10:22:34,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:22:34,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:22:34,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:22:34,761 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:22:34,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:22:28" (3/4) ... [2019-12-07 10:22:34,763 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 10:22:34,823 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1e04dc3d-0f04-470a-ad1e-858bc1726332/bin/utaipan/witness.graphml [2019-12-07 10:22:34,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:22:34,825 INFO L168 Benchmark]: Toolchain (without parser) took 7194.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.6 MB). Free memory was 953.7 MB in the beginning and 933.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 227.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:34,825 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:22:34,825 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:34,825 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:34,826 INFO L168 Benchmark]: Boogie Preprocessor took 32.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:34,826 INFO L168 Benchmark]: RCFGBuilder took 573.98 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: 74.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:34,826 INFO L168 Benchmark]: TraceAbstraction took 6096.35 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 1.0 GB in the beginning and 948.7 MB in the end (delta: 69.6 MB). Peak memory consumption was 146.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:34,826 INFO L168 Benchmark]: Witness Printer took 62.20 ms. Allocated memory is still 1.2 GB. Free memory was 948.7 MB in the beginning and 933.6 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:22:34,828 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 377.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 573.98 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: 74.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6096.35 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 1.0 GB in the beginning and 948.7 MB in the end (delta: 69.6 MB). Peak memory consumption was 146.1 MB. Max. memory is 11.5 GB. * Witness Printer took 62.20 ms. Allocated memory is still 1.2 GB. Free memory was 948.7 MB in the beginning and 933.6 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L617] int pumpRunning = 0; [L618] int systemActive = 1; [L848] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L921] int retValue_acc ; [L922] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] int retValue_acc ; [L842] retValue_acc = 1 [L843] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L928] tmp = valid_product() [L930] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L548] int splverifierCounter ; [L549] int tmp ; [L550] int tmp___0 ; [L551] int tmp___1 ; [L552] int tmp___2 ; [L555] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L557] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L559] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L565] tmp = __VERIFIER_nondet_int() [L567] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L468] COND TRUE waterLevel < 2 [L469] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L480] COND FALSE !(\read(methaneLevelCritical)) [L483] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L624] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L631] COND TRUE \read(systemActive) [L679] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L682] COND FALSE !(\read(pumpRunning)) [L653] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L656] COND TRUE ! pumpRunning [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L530] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L533] COND FALSE !(waterLevel < 2) [L537] retValue_acc = 0 [L538] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L782] tmp = isHighWaterSensorDry() [L784] COND FALSE !(\read(tmp)) [L787] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L789] retValue_acc = tmp___0 [L790] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L658] tmp = isHighWaterLevel() [L660] COND TRUE \read(tmp) [L707] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L410] int tmp ; [L411] int tmp___0 ; [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L415] tmp = isMethaneLevelCritical() [L417] COND TRUE \read(tmp) [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L419] tmp___0 = isPumpRunning() [L421] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L439] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 3 error locations. Result: UNSAFE, OverallTime: 5.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 844 SDtfs, 1126 SDslu, 1395 SDs, 0 SdLazy, 177 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=316occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 907 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 428 ConstructedInterpolants, 0 QuantifiedInterpolants, 20269 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1684 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...