./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/McCarthy91-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/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 edcc597a46f9ad79563531282ca675b8b1d7c4bf ................................................................................................................................................................................................................................................................................................... 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_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/McCarthy91-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/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 edcc597a46f9ad79563531282ca675b8b1d7c4bf ........................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:49:34,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:49:34,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:49:34,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:49:34,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:49:34,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:49:34,853 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:49:34,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:49:34,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:49:34,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:49:34,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:49:34,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:49:34,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:49:34,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:49:34,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:49:34,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:49:34,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:49:34,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:49:34,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:49:34,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:49:34,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:49:34,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:49:34,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:49:34,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:49:34,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:49:34,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:49:34,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:49:34,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:49:34,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:49:34,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:49:34,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:49:34,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:49:34,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:49:34,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:49:34,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:49:34,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:49:34,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:49:34,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:49:34,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:49:34,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:49:34,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:49:34,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:49:34,927 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:49:34,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:49:34,928 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:49:34,928 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:49:34,928 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:49:34,928 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:49:34,929 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:49:34,929 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:49:34,929 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:49:34,929 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:49:34,929 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:49:34,929 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:49:34,930 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:49:34,930 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:49:34,930 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:49:34,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:49:34,931 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:49:34,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:49:34,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:49:34,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:49:34,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:49:34,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:49:34,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:49:34,932 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:49:34,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:49:34,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:49:34,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:49:34,933 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:49:34,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:49:34,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:49:34,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:49:34,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:49:34,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:49:34,934 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:49:34,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:49:34,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:49:34,934 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:49:34,934 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_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/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 -> edcc597a46f9ad79563531282ca675b8b1d7c4bf [2019-11-26 02:49:35,083 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:49:35,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:49:35,096 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:49:35,097 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:49:35,097 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:49:35,098 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/../../sv-benchmarks/c/recursive/McCarthy91-2.c [2019-11-26 02:49:35,153 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/data/ae28cf525/b8ab54fd85d84963b53dd27a19017fba/FLAG89765b1b1 [2019-11-26 02:49:35,499 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:49:35,501 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/sv-benchmarks/c/recursive/McCarthy91-2.c [2019-11-26 02:49:35,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/data/ae28cf525/b8ab54fd85d84963b53dd27a19017fba/FLAG89765b1b1 [2019-11-26 02:49:35,886 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/data/ae28cf525/b8ab54fd85d84963b53dd27a19017fba [2019-11-26 02:49:35,889 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:49:35,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:49:35,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:49:35,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:49:35,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:49:35,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:49:35" (1/1) ... [2019-11-26 02:49:35,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@283c3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:35, skipping insertion in model container [2019-11-26 02:49:35,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:49:35" (1/1) ... [2019-11-26 02:49:35,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:49:35,930 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:49:36,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:49:36,058 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:49:36,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:49:36,146 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:49:36,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:36 WrapperNode [2019-11-26 02:49:36,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:49:36,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:49:36,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:49:36,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:49:36,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:36" (1/1) ... [2019-11-26 02:49:36,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:36" (1/1) ... [2019-11-26 02:49:36,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:49:36,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:49:36,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:49:36,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:49:36,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:36" (1/1) ... [2019-11-26 02:49:36,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:36" (1/1) ... [2019-11-26 02:49:36,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:36" (1/1) ... [2019-11-26 02:49:36,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:36" (1/1) ... [2019-11-26 02:49:36,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:36" (1/1) ... [2019-11-26 02:49:36,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:36" (1/1) ... [2019-11-26 02:49:36,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:36" (1/1) ... [2019-11-26 02:49:36,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:49:36,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:49:36,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:49:36,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:49:36,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/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 [2019-11-26 02:49:36,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:49:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:49:36,254 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2019-11-26 02:49:36,254 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2019-11-26 02:49:36,444 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:49:36,444 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:49:36,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:49:36 BoogieIcfgContainer [2019-11-26 02:49:36,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:49:36,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:49:36,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:49:36,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:49:36,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:49:35" (1/3) ... [2019-11-26 02:49:36,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b19a03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:49:36, skipping insertion in model container [2019-11-26 02:49:36,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:36" (2/3) ... [2019-11-26 02:49:36,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b19a03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:49:36, skipping insertion in model container [2019-11-26 02:49:36,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:49:36" (3/3) ... [2019-11-26 02:49:36,452 INFO L109 eAbstractionObserver]: Analyzing ICFG McCarthy91-2.c [2019-11-26 02:49:36,477 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:49:36,483 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:49:36,492 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:49:36,535 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:49:36,535 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:49:36,536 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:49:36,536 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:49:36,536 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:49:36,536 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:49:36,536 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:49:36,536 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:49:36,551 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-26 02:49:36,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:49:36,556 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:49:36,557 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:49:36,557 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:49:36,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:49:36,563 INFO L82 PathProgramCache]: Analyzing trace with hash -417462297, now seen corresponding path program 1 times [2019-11-26 02:49:36,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:49:36,572 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259210373] [2019-11-26 02:49:36,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:49:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:49:36,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:49:36,843 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259210373] [2019-11-26 02:49:36,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:49:36,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:49:36,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392756693] [2019-11-26 02:49:36,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:49:36,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:49:36,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:49:36,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:49:36,865 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 6 states. [2019-11-26 02:49:37,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:49:37,019 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2019-11-26 02:49:37,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:49:37,020 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2019-11-26 02:49:37,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:49:37,029 INFO L225 Difference]: With dead ends: 26 [2019-11-26 02:49:37,029 INFO L226 Difference]: Without dead ends: 16 [2019-11-26 02:49:37,032 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:49:37,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-26 02:49:37,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-26 02:49:37,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-26 02:49:37,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-11-26 02:49:37,071 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 9 [2019-11-26 02:49:37,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:49:37,071 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-26 02:49:37,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:49:37,071 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-11-26 02:49:37,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-26 02:49:37,073 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:49:37,073 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:49:37,074 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:49:37,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:49:37,074 INFO L82 PathProgramCache]: Analyzing trace with hash 2030866466, now seen corresponding path program 1 times [2019-11-26 02:49:37,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:49:37,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582053064] [2019-11-26 02:49:37,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:49:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:49:37,300 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-26 02:49:37,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582053064] [2019-11-26 02:49:37,301 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130840842] [2019-11-26 02:49:37,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:49:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:49:37,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-26 02:49:37,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:49:37,440 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-26 02:49:37,449 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:49:37,793 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:49:37,967 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-26 02:49:37,967 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1202538959] [2019-11-26 02:49:37,999 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-11-26 02:49:37,999 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:49:38,011 FATAL L310 FreeRefinementEngine]: Exception during interpolant generation: IllegalArgumentException [2019-11-26 02:49:38,215 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:49:38,216 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: Recursive programs are not supported. at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.(CallGraph.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.(IcfgInterpreter.java:92) at de.uni_freiburg.informatik.ultimate.plugins.sifa.SifaBuilder.construct(SifaBuilder.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-26 02:49:38,219 INFO L168 Benchmark]: Toolchain (without parser) took 2328.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 950.1 MB in the beginning and 981.3 MB in the end (delta: -31.2 MB). Peak memory consumption was 98.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:49:38,220 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:49:38,221 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -172.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:49:38,221 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.32 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. [2019-11-26 02:49:38,221 INFO L168 Benchmark]: Boogie Preprocessor took 15.67 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. [2019-11-26 02:49:38,222 INFO L168 Benchmark]: RCFGBuilder took 252.73 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:49:38,222 INFO L168 Benchmark]: TraceAbstraction took 1771.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.3 MB in the end (delta: 123.2 MB). Peak memory consumption was 123.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:49:38,225 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 245.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -172.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.32 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 15.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 252.73 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1771.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.3 MB in the end (delta: 123.2 MB). Peak memory consumption was 123.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalArgumentException: Recursive programs are not supported. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: Recursive programs are not supported.: de.uni_freiburg.informatik.ultimate.lib.sifa.CallGraph.topsortRelevant(CallGraph.java:132) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-26 02:49:40,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:49:40,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:49:40,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:49:40,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:49:40,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:49:40,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:49:40,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:49:40,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:49:40,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:49:40,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:49:40,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:49:40,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:49:40,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:49:40,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:49:40,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:49:40,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:49:40,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:49:40,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:49:40,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:49:40,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:49:40,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:49:40,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:49:40,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:49:40,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:49:40,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:49:40,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:49:40,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:49:40,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:49:40,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:49:40,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:49:40,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:49:40,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:49:40,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:49:40,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:49:40,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:49:40,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:49:40,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:49:40,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:49:40,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:49:40,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:49:40,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 02:49:40,222 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:49:40,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:49:40,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:49:40,223 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:49:40,224 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:49:40,224 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:49:40,224 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:49:40,224 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:49:40,225 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:49:40,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:49:40,225 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:49:40,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:49:40,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:49:40,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:49:40,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:49:40,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:49:40,227 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:49:40,227 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:49:40,227 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:49:40,227 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:49:40,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:49:40,228 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:49:40,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:49:40,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:49:40,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:49:40,229 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:49:40,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:49:40,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:49:40,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:49:40,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:49:40,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:49:40,230 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:49:40,230 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:49:40,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:49:40,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:49:40,231 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_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/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 -> edcc597a46f9ad79563531282ca675b8b1d7c4bf [2019-11-26 02:49:40,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:49:40,552 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:49:40,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:49:40,556 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:49:40,557 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:49:40,557 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/../../sv-benchmarks/c/recursive/McCarthy91-2.c [2019-11-26 02:49:40,611 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/data/acaa28bc8/a3101928db9042028945c9c816f28697/FLAG0252a16c8 [2019-11-26 02:49:40,987 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:49:40,988 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/sv-benchmarks/c/recursive/McCarthy91-2.c [2019-11-26 02:49:40,994 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/data/acaa28bc8/a3101928db9042028945c9c816f28697/FLAG0252a16c8 [2019-11-26 02:49:41,347 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/data/acaa28bc8/a3101928db9042028945c9c816f28697 [2019-11-26 02:49:41,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:49:41,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:49:41,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:49:41,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:49:41,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:49:41,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:49:41" (1/1) ... [2019-11-26 02:49:41,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da728ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:41, skipping insertion in model container [2019-11-26 02:49:41,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:49:41" (1/1) ... [2019-11-26 02:49:41,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:49:41,395 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:49:41,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:49:41,564 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:49:41,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:49:41,590 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:49:41,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:41 WrapperNode [2019-11-26 02:49:41,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:49:41,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:49:41,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:49:41,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:49:41,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:41" (1/1) ... [2019-11-26 02:49:41,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:41" (1/1) ... [2019-11-26 02:49:41,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:49:41,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:49:41,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:49:41,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:49:41,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:41" (1/1) ... [2019-11-26 02:49:41,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:41" (1/1) ... [2019-11-26 02:49:41,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:41" (1/1) ... [2019-11-26 02:49:41,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:41" (1/1) ... [2019-11-26 02:49:41,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:41" (1/1) ... [2019-11-26 02:49:41,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:41" (1/1) ... [2019-11-26 02:49:41,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:41" (1/1) ... [2019-11-26 02:49:41,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:49:41,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:49:41,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:49:41,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:49:41,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/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 [2019-11-26 02:49:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:49:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:49:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2019-11-26 02:49:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2019-11-26 02:49:41,891 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:49:41,892 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:49:41,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:49:41 BoogieIcfgContainer [2019-11-26 02:49:41,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:49:41,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:49:41,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:49:41,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:49:41,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:49:41" (1/3) ... [2019-11-26 02:49:41,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd7e5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:49:41, skipping insertion in model container [2019-11-26 02:49:41,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:49:41" (2/3) ... [2019-11-26 02:49:41,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd7e5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:49:41, skipping insertion in model container [2019-11-26 02:49:41,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:49:41" (3/3) ... [2019-11-26 02:49:41,899 INFO L109 eAbstractionObserver]: Analyzing ICFG McCarthy91-2.c [2019-11-26 02:49:41,908 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:49:41,913 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:49:41,923 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:49:41,944 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:49:41,945 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:49:41,945 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:49:41,945 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:49:41,945 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:49:41,945 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:49:41,945 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:49:41,946 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:49:41,961 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-26 02:49:41,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:49:41,966 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:49:41,967 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:49:41,967 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:49:41,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:49:41,973 INFO L82 PathProgramCache]: Analyzing trace with hash 2133741352, now seen corresponding path program 1 times [2019-11-26 02:49:41,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:49:41,980 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2057214694] [2019-11-26 02:49:41,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:49:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:49:42,045 WARN L253 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-26 02:49:42,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:49:42,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:49:42,214 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:49:42,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:49:42,581 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2057214694] [2019-11-26 02:49:42,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:49:42,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-26 02:49:42,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443758212] [2019-11-26 02:49:42,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-26 02:49:42,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:49:42,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-26 02:49:42,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:49:42,598 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 10 states. [2019-11-26 02:49:42,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:49:42,826 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-11-26 02:49:42,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:49:42,829 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2019-11-26 02:49:42,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:49:42,837 INFO L225 Difference]: With dead ends: 28 [2019-11-26 02:49:42,838 INFO L226 Difference]: Without dead ends: 15 [2019-11-26 02:49:42,844 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:49:42,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-26 02:49:42,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-26 02:49:42,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-26 02:49:42,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2019-11-26 02:49:42,890 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 9 [2019-11-26 02:49:42,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:49:42,890 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-11-26 02:49:42,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-26 02:49:42,891 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2019-11-26 02:49:42,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-26 02:49:42,898 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:49:42,898 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:49:43,101 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:49:43,101 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:49:43,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:49:43,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1989376947, now seen corresponding path program 1 times [2019-11-26 02:49:43,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:49:43,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [878054063] [2019-11-26 02:49:43,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:49:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:49:43,149 WARN L253 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-26 02:49:43,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:49:43,488 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-26 02:49:43,488 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:49:43,839 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2019-11-26 02:49:44,965 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-26 02:49:44,966 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [878054063] [2019-11-26 02:49:44,966 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699700849] [2019-11-26 02:49:44,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:49:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:49:45,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-26 02:49:45,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:49:45,201 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-26 02:49:45,201 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:49:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-26 02:49:45,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-11-26 02:49:45,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 10, 12] total 20 [2019-11-26 02:49:45,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622756361] [2019-11-26 02:49:45,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-26 02:49:45,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:49:45,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-26 02:49:45,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2019-11-26 02:49:45,613 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand 20 states. [2019-11-26 02:49:46,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:49:46,525 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-11-26 02:49:46,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-26 02:49:46,527 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 20 [2019-11-26 02:49:46,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:49:46,527 INFO L225 Difference]: With dead ends: 20 [2019-11-26 02:49:46,527 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:49:46,529 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 51 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2019-11-26 02:49:46,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:49:46,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:49:46,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:49:46,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:49:46,530 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-11-26 02:49:46,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:49:46,530 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:49:46,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-26 02:49:46,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:49:46,531 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:49:46,933 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:49:46,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:49:47,114 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:49:47,114 INFO L444 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-11-26 02:49:47,115 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:49:47,115 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-26 02:49:47,115 INFO L444 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2019-11-26 02:49:47,116 INFO L447 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: true [2019-11-26 02:49:47,116 INFO L444 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-11-26 02:49:47,116 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2019-11-26 02:49:47,116 INFO L440 ceAbstractionStarter]: At program point L24(lines 24 32) the Hoare annotation is: (or (and (bvsgt ULTIMATE.start_main_~x~0 (_ bv100 32)) (= (bvadd ULTIMATE.start_main_~x~0 (_ bv4294967286 32)) ULTIMATE.start_main_~result~0)) (= (_ bv91 32) ULTIMATE.start_main_~result~0)) [2019-11-26 02:49:47,117 INFO L444 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2019-11-26 02:49:47,117 INFO L444 ceAbstractionStarter]: For program point L16(lines 16 20) no Hoare annotation was computed. [2019-11-26 02:49:47,117 INFO L447 ceAbstractionStarter]: At program point f91ENTRY(lines 15 21) the Hoare annotation is: true [2019-11-26 02:49:47,117 INFO L444 ceAbstractionStarter]: For program point f91FINAL(lines 15 21) no Hoare annotation was computed. [2019-11-26 02:49:47,117 INFO L440 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (and (not (bvsgt f91_~x (_ bv100 32))) (= |f91_#in~x| f91_~x)) [2019-11-26 02:49:47,117 INFO L444 ceAbstractionStarter]: For program point f91EXIT(lines 15 21) no Hoare annotation was computed. [2019-11-26 02:49:47,118 INFO L440 ceAbstractionStarter]: At program point L19-1(line 19) the Hoare annotation is: (and (not (bvsgt (bvadd |f91_#t~ret0| (_ bv4294967295 32)) (_ bv100 32))) (not (bvsgt f91_~x (_ bv100 32))) (bvsgt (bvadd |f91_#t~ret0| (_ bv10 32)) (_ bv100 32)) (= |f91_#in~x| f91_~x)) [2019-11-26 02:49:47,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:49:47 BoogieIcfgContainer [2019-11-26 02:49:47,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:49:47,130 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:49:47,130 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:49:47,130 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:49:47,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:49:41" (3/4) ... [2019-11-26 02:49:47,134 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:49:47,140 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f91 [2019-11-26 02:49:47,144 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:49:47,144 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:49:47,193 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fe9bc9e1-a087-4dfa-9aa2-261280c68ba4/bin/utaipan/witness.graphml [2019-11-26 02:49:47,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:49:47,195 INFO L168 Benchmark]: Toolchain (without parser) took 5844.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 956.4 MB in the beginning and 857.3 MB in the end (delta: 99.1 MB). Peak memory consumption was 252.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:49:47,195 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:49:47,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.08 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:49:47,196 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.72 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:49:47,197 INFO L168 Benchmark]: Boogie Preprocessor took 63.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -204.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:49:47,197 INFO L168 Benchmark]: RCFGBuilder took 211.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:49:47,198 INFO L168 Benchmark]: TraceAbstraction took 5236.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 857.3 MB in the end (delta: 275.8 MB). Peak memory consumption was 275.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:49:47,198 INFO L168 Benchmark]: Witness Printer took 63.91 ms. Allocated memory is still 1.2 GB. Free memory is still 857.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:49:47,205 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 239.08 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.72 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -204.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 211.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5236.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 857.3 MB in the end (delta: 275.8 MB). Peak memory consumption was 275.8 MB. Max. memory is 11.5 GB. * Witness Printer took 63.91 ms. Allocated memory is still 1.2 GB. Free memory is still 857.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (~bvsgt32(x, 100bv32) && ~bvadd64(x, 4294967286bv32) == result) || 91bv32 == result - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 5.1s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 18 SDtfs, 30 SDslu, 70 SDs, 0 SdLazy, 192 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 59 SyntacticMatches, 7 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 14 PreInvPairs, 20 NumberOfFragments, 42 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 28 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 14380 SizeOfPredicates, 16 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 34/48 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 correct! Received shutdown request...