./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product52.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_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/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 eb59a6e6bbeea05d6faf844d6f750609a5360ad9 ...................................................................................................................................... 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_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/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 eb59a6e6bbeea05d6faf844d6f750609a5360ad9 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 20:22:36,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:22:36,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:22:36,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:22:36,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:22:36,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:22:36,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:22:36,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:22:36,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:22:36,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:22:36,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:22:36,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:22:36,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:22:36,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:22:36,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:22:36,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:22:36,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:22:36,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:22:36,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:22:36,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:22:36,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:22:36,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:22:36,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:22:36,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:22:36,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:22:36,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:22:36,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:22:36,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:22:36,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:22:36,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:22:36,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:22:36,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:22:36,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:22:36,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:22:36,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:22:36,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:22:36,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:22:36,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:22:36,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:22:36,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:22:36,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:22:36,822 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:22:36,832 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:22:36,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:22:36,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:22:36,833 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:22:36,833 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:22:36,833 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:22:36,833 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:22:36,833 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:22:36,833 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:22:36,833 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:22:36,834 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:22:36,834 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:22:36,834 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:22:36,834 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:22:36,834 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:22:36,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:22:36,835 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:22:36,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:22:36,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:22:36,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:22:36,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:22:36,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:22:36,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:22:36,836 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:22:36,836 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:22:36,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:22:36,836 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:22:36,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:22:36,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:22:36,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:22:36,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:22:36,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:22:36,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:22:36,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:22:36,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:22:36,837 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:22:36,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:22:36,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:22:36,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:22:36,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:22:36,837 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_c84be804-2758-4db2-a5b6-21ead1282eff/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 -> eb59a6e6bbeea05d6faf844d6f750609a5360ad9 [2019-12-07 20:22:36,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:22:36,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:22:36,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:22:36,946 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:22:36,946 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:22:36,946 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2019-12-07 20:22:36,982 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/data/e366e7666/5fcfdf8ed6e84cd9b777bfd0f616942a/FLAG85aed9906 [2019-12-07 20:22:37,408 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:22:37,408 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2019-12-07 20:22:37,417 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/data/e366e7666/5fcfdf8ed6e84cd9b777bfd0f616942a/FLAG85aed9906 [2019-12-07 20:22:37,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/data/e366e7666/5fcfdf8ed6e84cd9b777bfd0f616942a [2019-12-07 20:22:37,427 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:22:37,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:22:37,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:22:37,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:22:37,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:22:37,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:22:37" (1/1) ... [2019-12-07 20:22:37,434 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 08:22:37, skipping insertion in model container [2019-12-07 20:22:37,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:22:37" (1/1) ... [2019-12-07 20:22:37,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:22:37,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:22:37,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:22:37,735 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 20:22:37,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1d7f9dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:22:37, skipping insertion in model container [2019-12-07 20:22:37,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:22:37,736 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 20:22:37,738 INFO L168 Benchmark]: Toolchain (without parser) took 308.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -140.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:22:37,739 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:22:37,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:22:37,741 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 611]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 20:22:38,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:22:38,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:22:38,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:22:38,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:22:38,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:22:38,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:22:38,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:22:38,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:22:38,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:22:38,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:22:38,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:22:38,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:22:38,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:22:38,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:22:38,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:22:38,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:22:38,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:22:38,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:22:38,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:22:38,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:22:38,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:22:38,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:22:38,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:22:38,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:22:38,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:22:38,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:22:38,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:22:38,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:22:38,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:22:38,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:22:38,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:22:38,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:22:38,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:22:38,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:22:38,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:22:38,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:22:38,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:22:38,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:22:38,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:22:38,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:22:38,917 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:22:38,930 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:22:38,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:22:38,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:22:38,931 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:22:38,931 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:22:38,931 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:22:38,931 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:22:38,931 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:22:38,931 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:22:38,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:22:38,932 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:22:38,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:22:38,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:22:38,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:22:38,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:22:38,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:22:38,933 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:22:38,933 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:22:38,933 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:22:38,934 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:22:38,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:22:38,934 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:22:38,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:22:38,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:22:38,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:22:38,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:22:38,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:22:38,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:22:38,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:22:38,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:22:38,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:22:38,935 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:22:38,935 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:22:38,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:22:38,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:22:38,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:22:38,936 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_c84be804-2758-4db2-a5b6-21ead1282eff/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 -> eb59a6e6bbeea05d6faf844d6f750609a5360ad9 [2019-12-07 20:22:39,105 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:22:39,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:22:39,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:22:39,119 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:22:39,119 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:22:39,120 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2019-12-07 20:22:39,158 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/data/2aa831709/a8de2091316940e2b38b0aedc62394b4/FLAG9b0ae76ff [2019-12-07 20:22:39,611 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:22:39,612 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/sv-benchmarks/c/product-lines/minepump_spec1_product52.cil.c [2019-12-07 20:22:39,621 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/data/2aa831709/a8de2091316940e2b38b0aedc62394b4/FLAG9b0ae76ff [2019-12-07 20:22:39,630 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/data/2aa831709/a8de2091316940e2b38b0aedc62394b4 [2019-12-07 20:22:39,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:22:39,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:22:39,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:22:39,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:22:39,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:22:39,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:22:39" (1/1) ... [2019-12-07 20:22:39,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e05d898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:22:39, skipping insertion in model container [2019-12-07 20:22:39,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:22:39" (1/1) ... [2019-12-07 20:22:39,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:22:39,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:22:39,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:22:39,928 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 20:22:39,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:22:39,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:22:39,973 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:22:40,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:22:40,033 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:22:40,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:22:40 WrapperNode [2019-12-07 20:22:40,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:22:40,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:22:40,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:22:40,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:22:40,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:22:40" (1/1) ... [2019-12-07 20:22:40,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:22:40" (1/1) ... [2019-12-07 20:22:40,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:22:40,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:22:40,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:22:40,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:22:40,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:22:40" (1/1) ... [2019-12-07 20:22:40,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:22:40" (1/1) ... [2019-12-07 20:22:40,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:22:40" (1/1) ... [2019-12-07 20:22:40,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:22:40" (1/1) ... [2019-12-07 20:22:40,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:22:40" (1/1) ... [2019-12-07 20:22:40,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:22:40" (1/1) ... [2019-12-07 20:22:40,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:22:40" (1/1) ... [2019-12-07 20:22:40,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:22:40,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:22:40,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:22:40,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:22:40,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:22:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:22:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:22:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 20:22:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:22:40,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:22:40,692 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:22:40,693 INFO L287 CfgBuilder]: Removed 162 assume(true) statements. [2019-12-07 20:22:40,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:22:40 BoogieIcfgContainer [2019-12-07 20:22:40,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:22:40,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:22:40,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:22:40,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:22:40,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:22:39" (1/3) ... [2019-12-07 20:22:40,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f0dce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:22:40, skipping insertion in model container [2019-12-07 20:22:40,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:22:40" (2/3) ... [2019-12-07 20:22:40,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f0dce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:22:40, skipping insertion in model container [2019-12-07 20:22:40,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:22:40" (3/3) ... [2019-12-07 20:22:40,699 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2019-12-07 20:22:40,706 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:22:40,711 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 20:22:40,719 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 20:22:40,736 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:22:40,736 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:22:40,736 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:22:40,736 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:22:40,736 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:22:40,736 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:22:40,736 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:22:40,736 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:22:40,748 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-12-07 20:22:40,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 20:22:40,753 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:22:40,754 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:22:40,754 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:22:40,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:22:40,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1794729554, now seen corresponding path program 1 times [2019-12-07 20:22:40,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:22:40,767 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788991574] [2019-12-07 20:22:40,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 20:22:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:22:40,891 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:22:40,895 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:22:40,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:40,905 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:22:40,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:40,909 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788991574] [2019-12-07 20:22:40,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:22:40,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:22:40,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323430357] [2019-12-07 20:22:40,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:22:40,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:22:40,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:22:40,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:22:40,923 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-12-07 20:22:40,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:22:40,945 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2019-12-07 20:22:40,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:22:40,946 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 20:22:40,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:22:40,954 INFO L225 Difference]: With dead ends: 232 [2019-12-07 20:22:40,954 INFO L226 Difference]: Without dead ends: 115 [2019-12-07 20:22:40,957 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:22:40,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-12-07 20:22:40,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-12-07 20:22:40,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-12-07 20:22:40,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-12-07 20:22:40,987 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 16 [2019-12-07 20:22:40,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:22:40,987 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-12-07 20:22:40,988 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:22:40,988 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-12-07 20:22:40,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 20:22:40,988 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:22:40,989 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:22:41,189 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:22:41,190 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:22:41,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:22:41,191 INFO L82 PathProgramCache]: Analyzing trace with hash 529368141, now seen corresponding path program 1 times [2019-12-07 20:22:41,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:22:41,193 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796522182] [2019-12-07 20:22:41,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 20:22:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:22:41,425 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:22:41,427 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:22:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:41,443 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:22:41,452 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 20:22:41,452 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796522182] [2019-12-07 20:22:41,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:22:41,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:22:41,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693386570] [2019-12-07 20:22:41,454 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:22:41,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:22:41,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:22:41,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:22:41,455 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 4 states. [2019-12-07 20:22:41,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:22:41,471 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2019-12-07 20:22:41,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:22:41,472 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 20:22:41,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:22:41,473 INFO L225 Difference]: With dead ends: 115 [2019-12-07 20:22:41,473 INFO L226 Difference]: Without dead ends: 49 [2019-12-07 20:22:41,474 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:22:41,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-12-07 20:22:41,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-12-07 20:22:41,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-12-07 20:22:41,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2019-12-07 20:22:41,480 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 17 [2019-12-07 20:22:41,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:22:41,480 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2019-12-07 20:22:41,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:22:41,481 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2019-12-07 20:22:41,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 20:22:41,482 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:22:41,482 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:22:41,682 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:22:41,683 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:22:41,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:22:41,684 INFO L82 PathProgramCache]: Analyzing trace with hash -2061312917, now seen corresponding path program 1 times [2019-12-07 20:22:41,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:22:41,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488054744] [2019-12-07 20:22:41,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 20:22:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:22:41,830 INFO L264 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:22:41,832 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:22:41,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:41,839 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:22:41,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:41,845 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488054744] [2019-12-07 20:22:41,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:22:41,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 20:22:41,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598308030] [2019-12-07 20:22:41,846 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:22:41,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:22:41,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:22:41,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:22:41,847 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 4 states. [2019-12-07 20:22:41,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:22:41,909 INFO L93 Difference]: Finished difference Result 158 states and 235 transitions. [2019-12-07 20:22:41,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:22:41,910 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 20:22:41,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:22:41,911 INFO L225 Difference]: With dead ends: 158 [2019-12-07 20:22:41,912 INFO L226 Difference]: Without dead ends: 115 [2019-12-07 20:22:41,912 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:22:41,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-12-07 20:22:41,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 68. [2019-12-07 20:22:41,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-12-07 20:22:41,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 100 transitions. [2019-12-07 20:22:41,924 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 100 transitions. Word has length 22 [2019-12-07 20:22:41,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:22:41,924 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 100 transitions. [2019-12-07 20:22:41,924 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:22:41,925 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2019-12-07 20:22:41,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 20:22:41,926 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:22:41,926 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:22:42,126 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:22:42,127 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:22:42,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:22:42,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1499976397, now seen corresponding path program 1 times [2019-12-07 20:22:42,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:22:42,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378306514] [2019-12-07 20:22:42,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 20:22:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:22:42,356 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:22:42,357 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:22:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:42,363 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:22:42,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:42,366 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378306514] [2019-12-07 20:22:42,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:22:42,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 20:22:42,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126463550] [2019-12-07 20:22:42,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 20:22:42,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:22:42,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 20:22:42,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:22:42,367 INFO L87 Difference]: Start difference. First operand 68 states and 100 transitions. Second operand 3 states. [2019-12-07 20:22:42,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:22:42,427 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2019-12-07 20:22:42,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 20:22:42,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 20:22:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:22:42,429 INFO L225 Difference]: With dead ends: 151 [2019-12-07 20:22:42,429 INFO L226 Difference]: Without dead ends: 89 [2019-12-07 20:22:42,430 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 20:22:42,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-12-07 20:22:42,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2019-12-07 20:22:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-12-07 20:22:42,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2019-12-07 20:22:42,441 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 24 [2019-12-07 20:22:42,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:22:42,441 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2019-12-07 20:22:42,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 20:22:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2019-12-07 20:22:42,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 20:22:42,442 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:22:42,442 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 20:22:42,643 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 20:22:42,643 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:22:42,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:22:42,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1678878848, now seen corresponding path program 1 times [2019-12-07 20:22:42,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:22:42,644 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185385990] [2019-12-07 20:22:42,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 20:22:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:22:42,737 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:22:42,738 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:22:42,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:42,751 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:22:42,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:42,758 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185385990] [2019-12-07 20:22:42,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:22:42,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 20:22:42,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527777826] [2019-12-07 20:22:42,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:22:42,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:22:42,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:22:42,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:22:42,759 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand 5 states. [2019-12-07 20:22:42,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:22:42,829 INFO L93 Difference]: Finished difference Result 445 states and 650 transitions. [2019-12-07 20:22:42,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 20:22:42,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 20:22:42,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:22:42,833 INFO L225 Difference]: With dead ends: 445 [2019-12-07 20:22:42,833 INFO L226 Difference]: Without dead ends: 364 [2019-12-07 20:22:42,834 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 20:22:42,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-12-07 20:22:42,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 160. [2019-12-07 20:22:42,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-12-07 20:22:42,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 226 transitions. [2019-12-07 20:22:42,852 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 226 transitions. Word has length 25 [2019-12-07 20:22:42,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:22:42,852 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 226 transitions. [2019-12-07 20:22:42,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:22:42,852 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 226 transitions. [2019-12-07 20:22:42,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 20:22:42,853 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:22:42,853 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 20:22:43,053 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 20:22:43,055 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:22:43,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:22:43,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1475071754, now seen corresponding path program 1 times [2019-12-07 20:22:43,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:22:43,058 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366578254] [2019-12-07 20:22:43,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 20:22:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:22:43,196 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:22:43,197 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:22:43,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:43,209 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:22:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:43,212 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366578254] [2019-12-07 20:22:43,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:22:43,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 20:22:43,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500199009] [2019-12-07 20:22:43,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:22:43,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:22:43,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:22:43,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:22:43,213 INFO L87 Difference]: Start difference. First operand 160 states and 226 transitions. Second operand 5 states. [2019-12-07 20:22:43,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:22:43,370 INFO L93 Difference]: Finished difference Result 448 states and 637 transitions. [2019-12-07 20:22:43,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 20:22:43,370 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-12-07 20:22:43,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:22:43,373 INFO L225 Difference]: With dead ends: 448 [2019-12-07 20:22:43,373 INFO L226 Difference]: Without dead ends: 446 [2019-12-07 20:22:43,374 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 20:22:43,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2019-12-07 20:22:43,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 160. [2019-12-07 20:22:43,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-12-07 20:22:43,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 224 transitions. [2019-12-07 20:22:43,393 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 224 transitions. Word has length 26 [2019-12-07 20:22:43,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:22:43,393 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 224 transitions. [2019-12-07 20:22:43,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:22:43,393 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 224 transitions. [2019-12-07 20:22:43,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 20:22:43,394 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:22:43,395 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 20:22:43,595 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 20:22:43,596 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:22:43,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:22:43,597 INFO L82 PathProgramCache]: Analyzing trace with hash 317568404, now seen corresponding path program 1 times [2019-12-07 20:22:43,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:22:43,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508251236] [2019-12-07 20:22:43,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 20:22:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:22:43,730 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 20:22:43,731 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:22:43,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:43,743 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:22:43,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:43,746 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508251236] [2019-12-07 20:22:43,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:22:43,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 20:22:43,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253463860] [2019-12-07 20:22:43,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 20:22:43,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:22:43,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 20:22:43,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 20:22:43,747 INFO L87 Difference]: Start difference. First operand 160 states and 224 transitions. Second operand 5 states. [2019-12-07 20:22:43,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:22:43,805 INFO L93 Difference]: Finished difference Result 476 states and 660 transitions. [2019-12-07 20:22:43,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 20:22:43,806 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 20:22:43,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:22:43,807 INFO L225 Difference]: With dead ends: 476 [2019-12-07 20:22:43,807 INFO L226 Difference]: Without dead ends: 322 [2019-12-07 20:22:43,808 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 20:22:43,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2019-12-07 20:22:43,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 172. [2019-12-07 20:22:43,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-12-07 20:22:43,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 236 transitions. [2019-12-07 20:22:43,819 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 236 transitions. Word has length 31 [2019-12-07 20:22:43,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:22:43,820 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 236 transitions. [2019-12-07 20:22:43,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 20:22:43,820 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 236 transitions. [2019-12-07 20:22:43,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 20:22:43,820 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:22:43,821 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 20:22:44,021 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 20:22:44,022 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:22:44,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:22:44,023 INFO L82 PathProgramCache]: Analyzing trace with hash -75458606, now seen corresponding path program 1 times [2019-12-07 20:22:44,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:22:44,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45612768] [2019-12-07 20:22:44,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 20:22:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:22:44,231 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 20:22:44,232 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:22:44,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:44,240 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:22:44,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:44,249 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45612768] [2019-12-07 20:22:44,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:22:44,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 20:22:44,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464094985] [2019-12-07 20:22:44,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 20:22:44,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:22:44,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 20:22:44,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 20:22:44,250 INFO L87 Difference]: Start difference. First operand 172 states and 236 transitions. Second operand 6 states. [2019-12-07 20:22:44,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:22:44,305 INFO L93 Difference]: Finished difference Result 510 states and 694 transitions. [2019-12-07 20:22:44,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:22:44,306 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-12-07 20:22:44,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:22:44,308 INFO L225 Difference]: With dead ends: 510 [2019-12-07 20:22:44,308 INFO L226 Difference]: Without dead ends: 344 [2019-12-07 20:22:44,308 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 20:22:44,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2019-12-07 20:22:44,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 180. [2019-12-07 20:22:44,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-12-07 20:22:44,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 244 transitions. [2019-12-07 20:22:44,323 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 244 transitions. Word has length 31 [2019-12-07 20:22:44,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:22:44,324 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 244 transitions. [2019-12-07 20:22:44,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 20:22:44,324 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 244 transitions. [2019-12-07 20:22:44,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 20:22:44,324 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:22:44,325 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 20:22:44,525 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 20:22:44,525 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:22:44,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:22:44,525 INFO L82 PathProgramCache]: Analyzing trace with hash 182706832, now seen corresponding path program 1 times [2019-12-07 20:22:44,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:22:44,526 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816605619] [2019-12-07 20:22:44,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 20:22:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:22:44,624 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 20:22:44,625 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:22:44,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:44,631 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:22:44,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:22:44,640 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816605619] [2019-12-07 20:22:44,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:22:44,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 20:22:44,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787831593] [2019-12-07 20:22:44,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 20:22:44,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:22:44,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 20:22:44,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 20:22:44,641 INFO L87 Difference]: Start difference. First operand 180 states and 244 transitions. Second operand 4 states. [2019-12-07 20:22:44,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:22:44,697 INFO L93 Difference]: Finished difference Result 588 states and 800 transitions. [2019-12-07 20:22:44,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 20:22:44,698 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-07 20:22:44,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:22:44,700 INFO L225 Difference]: With dead ends: 588 [2019-12-07 20:22:44,700 INFO L226 Difference]: Without dead ends: 414 [2019-12-07 20:22:44,701 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 20:22:44,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2019-12-07 20:22:44,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 324. [2019-12-07 20:22:44,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2019-12-07 20:22:44,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 435 transitions. [2019-12-07 20:22:44,721 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 435 transitions. Word has length 31 [2019-12-07 20:22:44,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:22:44,721 INFO L462 AbstractCegarLoop]: Abstraction has 324 states and 435 transitions. [2019-12-07 20:22:44,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 20:22:44,721 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 435 transitions. [2019-12-07 20:22:44,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 20:22:44,722 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:22:44,722 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 20:22:44,923 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 20:22:44,924 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:22:44,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:22:44,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1930053038, now seen corresponding path program 1 times [2019-12-07 20:22:44,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:22:44,926 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940083637] [2019-12-07 20:22:44,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/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 20:22:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:22:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:22:46,040 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:22:46,040 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:22:46,241 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 20:22:46,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:22:46 BoogieIcfgContainer [2019-12-07 20:22:46,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:22:46,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:22:46,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:22:46,348 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:22:46,349 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:22:40" (3/4) ... [2019-12-07 20:22:46,350 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:22:46,430 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c84be804-2758-4db2-a5b6-21ead1282eff/bin/utaipan/witness.graphml [2019-12-07 20:22:46,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:22:46,432 INFO L168 Benchmark]: Toolchain (without parser) took 6798.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.4 MB). Free memory was 953.7 MB in the beginning and 922.1 MB in the end (delta: 31.6 MB). Peak memory consumption was 235.0 MB. Max. memory is 11.5 GB. [2019-12-07 20:22:46,432 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:22:46,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:22:46,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:22:46,433 INFO L168 Benchmark]: Boogie Preprocessor took 31.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:22:46,433 INFO L168 Benchmark]: RCFGBuilder took 581.48 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: 74.4 MB). Peak memory consumption was 74.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:22:46,433 INFO L168 Benchmark]: TraceAbstraction took 5653.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 77.1 MB). Free memory was 1.0 GB in the beginning and 937.2 MB in the end (delta: 69.8 MB). Peak memory consumption was 146.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:22:46,434 INFO L168 Benchmark]: Witness Printer took 82.09 ms. Allocated memory is still 1.2 GB. Free memory was 937.2 MB in the beginning and 922.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:22:46,435 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 400.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.52 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 581.48 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: 74.4 MB). Peak memory consumption was 74.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5653.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 77.1 MB). Free memory was 1.0 GB in the beginning and 937.2 MB in the end (delta: 69.8 MB). Peak memory consumption was 146.9 MB. Max. memory is 11.5 GB. * Witness Printer took 82.09 ms. Allocated memory is still 1.2 GB. Free memory was 937.2 MB in the beginning and 922.1 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: 383]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L458] int cleanupTimeShifts = 4; [L752] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] int retValue_acc ; [L535] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L975] int retValue_acc ; [L978] retValue_acc = 1 [L979] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L541] tmp = valid_product() [L543] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L390] int splverifierCounter ; [L391] int tmp ; [L392] int tmp___0 ; [L393] int tmp___1 ; [L394] int tmp___2 ; [L397] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L399] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L401] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L407] tmp = __VERIFIER_nondet_int() [L409] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L417] tmp___0 = __VERIFIER_nondet_int() [L419] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L78] COND FALSE !(\read(methaneLevelCritical)) [L81] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L427] tmp___2 = __VERIFIER_nondet_int() [L429] COND TRUE \read(tmp___2) [L374] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L166] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L173] COND TRUE \read(systemActive) [L221] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L224] COND FALSE !(\read(pumpRunning)) [L195] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L198] COND TRUE ! pumpRunning [L318] int retValue_acc ; [L319] int tmp ; [L320] int tmp___0 ; [L128] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L131] COND FALSE !(waterLevel < 2) [L135] retValue_acc = 0 [L136] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L324] tmp = isHighWaterSensorDry() [L326] COND FALSE !(\read(tmp)) [L329] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L331] retValue_acc = tmp___0 [L332] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L200] tmp = isHighWaterLevel() [L202] COND TRUE \read(tmp) [L249] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L558] int tmp ; [L559] int tmp___0 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L563] tmp = isMethaneLevelCritical() [L565] COND TRUE \read(tmp) [L273] int retValue_acc ; [L276] retValue_acc = pumpRunning [L277] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L567] tmp___0 = isPumpRunning() [L569] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L383] __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, 119 locations, 3 error locations. Result: UNSAFE, OverallTime: 5.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 890 SDtfs, 1260 SDslu, 1431 SDs, 0 SdLazy, 166 SolverSat, 43 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=324occurred 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, 943 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 428 ConstructedInterpolants, 0 QuantifiedInterpolants, 18358 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1689 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...