./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/sum_10x0-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_10x0-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/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 b1d9bbb15ebabc8fa7bed11dd5ef1fc8e11e37bc ........................................................................................................................................................................................................................................................................................................................... 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/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_10x0-1.c -s /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/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 b1d9bbb15ebabc8fa7bed11dd5ef1fc8e11e37bc ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:20:55,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:20:55,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:20:55,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:20:55,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:20:55,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:20:55,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:20:55,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:20:55,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:20:55,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:20:55,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:20:55,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:20:55,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:20:55,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:20:55,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:20:55,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:20:55,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:20:55,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:20:55,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:20:55,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:20:55,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:20:55,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:20:55,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:20:55,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:20:55,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:20:55,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:20:55,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:20:55,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:20:55,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:20:55,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:20:55,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:20:55,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:20:55,864 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:20:55,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:20:55,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:20:55,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:20:55,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:20:55,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:20:55,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:20:55,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:20:55,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:20:55,869 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:20:55,880 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:20:55,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:20:55,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:20:55,889 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:20:55,889 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:20:55,889 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:20:55,889 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:20:55,890 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:20:55,890 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:20:55,890 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:20:55,890 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:20:55,890 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:20:55,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:20:55,891 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:20:55,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:20:55,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:20:55,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:20:55,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:20:55,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:20:55,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:20:55,892 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:20:55,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:20:55,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:20:55,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:20:55,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:20:55,893 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:20:55,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:20:55,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:20:55,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:20:55,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:20:55,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:20:55,894 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:20:55,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:20:55,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:20:55,895 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:20:55,895 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/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/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 -> b1d9bbb15ebabc8fa7bed11dd5ef1fc8e11e37bc [2019-10-22 11:20:55,922 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:20:55,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:20:55,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:20:55,936 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:20:55,936 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:20:55,937 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/../../sv-benchmarks/c/recursive-simple/sum_10x0-1.c [2019-10-22 11:20:55,985 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/data/d06506bfb/9a52b538a6754d859c4ddea8b783cd56/FLAG84d91977a [2019-10-22 11:20:56,391 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:20:56,392 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/sv-benchmarks/c/recursive-simple/sum_10x0-1.c [2019-10-22 11:20:56,397 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/data/d06506bfb/9a52b538a6754d859c4ddea8b783cd56/FLAG84d91977a [2019-10-22 11:20:56,408 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/data/d06506bfb/9a52b538a6754d859c4ddea8b783cd56 [2019-10-22 11:20:56,410 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:20:56,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:20:56,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:56,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:20:56,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:20:56,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@420a83e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56, skipping insertion in model container [2019-10-22 11:20:56,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,428 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:20:56,442 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:20:56,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:56,619 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:20:56,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:56,751 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:20:56,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56 WrapperNode [2019-10-22 11:20:56,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:56,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:56,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:20:56,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:20:56,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:56,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:20:56,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:20:56,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:20:56,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... [2019-10-22 11:20:56,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:20:56,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:20:56,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:20:56,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:20:56,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/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 [2019-10-22 11:20:56,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:20:56,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:20:56,906 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2019-10-22 11:20:56,906 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2019-10-22 11:20:57,097 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:20:57,098 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:20:57,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:57 BoogieIcfgContainer [2019-10-22 11:20:57,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:20:57,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:20:57,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:20:57,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:20:57,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:20:56" (1/3) ... [2019-10-22 11:20:57,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520616b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:57, skipping insertion in model container [2019-10-22 11:20:57,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:56" (2/3) ... [2019-10-22 11:20:57,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520616b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:57, skipping insertion in model container [2019-10-22 11:20:57,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:57" (3/3) ... [2019-10-22 11:20:57,108 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_10x0-1.c [2019-10-22 11:20:57,119 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:20:57,126 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:20:57,138 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:20:57,162 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:20:57,162 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:20:57,163 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:20:57,163 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:20:57,163 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:20:57,163 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:20:57,163 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:20:57,163 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:20:57,178 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-10-22 11:20:57,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:20:57,184 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:57,185 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:57,187 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:57,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:57,194 INFO L82 PathProgramCache]: Analyzing trace with hash 389977641, now seen corresponding path program 1 times [2019-10-22 11:20:57,204 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:57,204 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957712504] [2019-10-22 11:20:57,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:57,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:57,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:57,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:20:57,360 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957712504] [2019-10-22 11:20:57,360 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:20:57,361 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:20:57,361 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135678480] [2019-10-22 11:20:57,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:20:57,368 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:20:57,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:20:57,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:20:57,386 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 5 states. [2019-10-22 11:20:57,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:20:57,505 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2019-10-22 11:20:57,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:20:57,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-10-22 11:20:57,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:20:57,518 INFO L225 Difference]: With dead ends: 24 [2019-10-22 11:20:57,518 INFO L226 Difference]: Without dead ends: 14 [2019-10-22 11:20:57,521 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:20:57,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-22 11:20:57,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-22 11:20:57,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-22 11:20:57,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-10-22 11:20:57,558 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 9 [2019-10-22 11:20:57,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:20:57,558 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-10-22 11:20:57,559 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:20:57,559 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-10-22 11:20:57,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 11:20:57,561 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:57,561 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:20:57,561 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:20:57,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:57,562 INFO L82 PathProgramCache]: Analyzing trace with hash -881029229, now seen corresponding path program 1 times [2019-10-22 11:20:57,562 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:57,562 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193271705] [2019-10-22 11:20:57,562 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:57,562 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:57,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:57,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 11:20:57,655 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193271705] [2019-10-22 11:20:57,656 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306118092] [2019-10-22 11:20:57,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/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 [2019-10-22 11:20:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:20:57,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:20:57,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:20:57,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 11:20:57,769 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:20:57,928 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:20:57,969 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 11:20:57,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [138334169] [2019-10-22 11:20:57,977 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 16 [2019-10-22 11:20:58,026 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:20:58,027 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:20:58,313 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:20:58,314 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) 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.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) 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:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) 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) [2019-10-22 11:20:58,319 INFO L168 Benchmark]: Toolchain (without parser) took 1906.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 945.9 MB in the beginning and 1.0 GB in the end (delta: -97.9 MB). Peak memory consumption was 47.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:20:58,320 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:20:58,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -192.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:20:58,321 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.13 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. [2019-10-22 11:20:58,322 INFO L168 Benchmark]: Boogie Preprocessor took 21.20 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. [2019-10-22 11:20:58,322 INFO L168 Benchmark]: RCFGBuilder took 280.99 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: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:20:58,323 INFO L168 Benchmark]: TraceAbstraction took 1216.58 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: 73.7 MB). Peak memory consumption was 73.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:20:58,327 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 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 339.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -192.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.13 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 21.20 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 280.99 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: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1216.58 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: 73.7 MB). Peak memory consumption was 73.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:21:00,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:21:00,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:21:00,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:21:00,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:21:00,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:21:00,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:21:00,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:21:00,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:21:00,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:21:00,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:21:00,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:21:00,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:21:00,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:21:00,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:21:00,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:21:00,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:21:00,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:21:00,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:21:00,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:21:00,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:21:00,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:21:00,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:21:00,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:21:00,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:21:00,699 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:21:00,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:21:00,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:21:00,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:21:00,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:21:00,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:21:00,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:21:00,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:21:00,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:21:00,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:21:00,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:21:00,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:21:00,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:21:00,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:21:00,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:21:00,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:21:00,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:21:00,726 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:21:00,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:21:00,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:21:00,727 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:21:00,727 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:21:00,727 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:21:00,727 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:21:00,728 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:21:00,728 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:21:00,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:21:00,729 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:21:00,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:21:00,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:21:00,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:21:00,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:21:00,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:21:00,729 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:21:00,730 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:21:00,730 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:21:00,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:21:00,730 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:21:00,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:21:00,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:21:00,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:21:00,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:21:00,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:21:00,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:21:00,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:21:00,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:21:00,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:21:00,736 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:21:00,736 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:21:00,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:21:00,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:21:00,737 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/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/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 -> b1d9bbb15ebabc8fa7bed11dd5ef1fc8e11e37bc [2019-10-22 11:21:00,780 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:21:00,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:21:00,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:21:00,800 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:21:00,801 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:21:00,801 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/../../sv-benchmarks/c/recursive-simple/sum_10x0-1.c [2019-10-22 11:21:00,853 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/data/fa3b29b5f/9a85c1f8819443bb98aa01057fa0b7ba/FLAGc7d4eeab5 [2019-10-22 11:21:01,262 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:21:01,262 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/sv-benchmarks/c/recursive-simple/sum_10x0-1.c [2019-10-22 11:21:01,267 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/data/fa3b29b5f/9a85c1f8819443bb98aa01057fa0b7ba/FLAGc7d4eeab5 [2019-10-22 11:21:01,278 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/data/fa3b29b5f/9a85c1f8819443bb98aa01057fa0b7ba [2019-10-22 11:21:01,281 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:21:01,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:21:01,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:01,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:21:01,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:21:01,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:01" (1/1) ... [2019-10-22 11:21:01,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@437f0ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:01, skipping insertion in model container [2019-10-22 11:21:01,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:21:01" (1/1) ... [2019-10-22 11:21:01,300 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:21:01,315 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:21:01,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:01,513 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:21:01,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:21:01,549 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:21:01,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:01 WrapperNode [2019-10-22 11:21:01,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:21:01,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:01,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:21:01,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:21:01,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:01" (1/1) ... [2019-10-22 11:21:01,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:01" (1/1) ... [2019-10-22 11:21:01,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:21:01,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:21:01,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:21:01,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:21:01,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:01" (1/1) ... [2019-10-22 11:21:01,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:01" (1/1) ... [2019-10-22 11:21:01,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:01" (1/1) ... [2019-10-22 11:21:01,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:01" (1/1) ... [2019-10-22 11:21:01,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:01" (1/1) ... [2019-10-22 11:21:01,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:01" (1/1) ... [2019-10-22 11:21:01,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:01" (1/1) ... [2019-10-22 11:21:01,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:21:01,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:21:01,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:21:01,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:21:01,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/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 [2019-10-22 11:21:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:21:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:21:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2019-10-22 11:21:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2019-10-22 11:21:01,962 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:21:01,963 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:21:01,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:01 BoogieIcfgContainer [2019-10-22 11:21:01,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:21:01,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:21:01,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:21:01,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:21:01,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:21:01" (1/3) ... [2019-10-22 11:21:01,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1932f1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:01, skipping insertion in model container [2019-10-22 11:21:01,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:21:01" (2/3) ... [2019-10-22 11:21:01,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1932f1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:21:01, skipping insertion in model container [2019-10-22 11:21:01,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:01" (3/3) ... [2019-10-22 11:21:01,982 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_10x0-1.c [2019-10-22 11:21:02,004 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:21:02,011 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:21:02,028 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:21:02,076 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:21:02,076 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:21:02,077 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:21:02,077 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:21:02,077 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:21:02,077 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:21:02,077 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:21:02,078 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:21:02,097 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-10-22 11:21:02,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:21:02,104 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:02,105 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:02,107 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:02,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:02,113 INFO L82 PathProgramCache]: Analyzing trace with hash 389977641, now seen corresponding path program 1 times [2019-10-22 11:21:02,125 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:02,126 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [273151738] [2019-10-22 11:21:02,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/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 [2019-10-22 11:21:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:02,192 WARN L254 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 11:21:02,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:02,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:02,390 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:02,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:21:02,865 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [273151738] [2019-10-22 11:21:02,866 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:02,866 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 10 [2019-10-22 11:21:02,866 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477343742] [2019-10-22 11:21:02,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 11:21:02,873 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:02,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 11:21:02,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:21:02,892 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 10 states. [2019-10-22 11:21:03,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:03,138 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2019-10-22 11:21:03,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:21:03,140 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2019-10-22 11:21:03,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:03,154 INFO L225 Difference]: With dead ends: 24 [2019-10-22 11:21:03,154 INFO L226 Difference]: Without dead ends: 14 [2019-10-22 11:21:03,163 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:21:03,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-22 11:21:03,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-22 11:21:03,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-22 11:21:03,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-10-22 11:21:03,217 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 9 [2019-10-22 11:21:03,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:03,219 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-10-22 11:21:03,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 11:21:03,220 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-10-22 11:21:03,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 11:21:03,222 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:21:03,222 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:21:03,423 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:03,423 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:21:03,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:21:03,423 INFO L82 PathProgramCache]: Analyzing trace with hash -881029229, now seen corresponding path program 1 times [2019-10-22 11:21:03,424 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:21:03,424 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [622599867] [2019-10-22 11:21:03,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/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 [2019-10-22 11:21:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:21:03,465 WARN L254 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-22 11:21:03,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:21:03,641 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-22 11:21:03,641 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:21:04,376 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-22 11:21:04,377 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [622599867] [2019-10-22 11:21:04,377 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:21:04,377 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 11 [2019-10-22 11:21:04,378 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595997242] [2019-10-22 11:21:04,380 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-22 11:21:04,380 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:21:04,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-22 11:21:04,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-22 11:21:04,381 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 11 states. [2019-10-22 11:21:04,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:21:04,608 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-10-22 11:21:04,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:21:04,609 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2019-10-22 11:21:04,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:21:04,609 INFO L225 Difference]: With dead ends: 14 [2019-10-22 11:21:04,610 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:21:04,611 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 7 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2019-10-22 11:21:04,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:21:04,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:21:04,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:21:04,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:21:04,612 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-10-22 11:21:04,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:21:04,613 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:21:04,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-22 11:21:04,613 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:21:04,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:21:04,814 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:21:04,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:21:04,886 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:21:04,886 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:21:04,886 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2019-10-22 11:21:04,887 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:21:04,887 INFO L443 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2019-10-22 11:21:04,888 INFO L443 ceAbstractionStarter]: For program point L15(lines 15 17) no Hoare annotation was computed. [2019-10-22 11:21:04,889 INFO L439 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (and (= (_ bv10 32) ULTIMATE.start_main_~a~0) (= (_ bv0 32) ULTIMATE.start_main_~b~0)) [2019-10-22 11:21:04,889 INFO L443 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2019-10-22 11:21:04,889 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 18) no Hoare annotation was computed. [2019-10-22 11:21:04,889 INFO L443 ceAbstractionStarter]: For program point sumEXIT(lines 3 9) no Hoare annotation was computed. [2019-10-22 11:21:04,890 INFO L439 ceAbstractionStarter]: At program point L7(line 7) the Hoare annotation is: (and (= |sum_#in~m| sum_~m) (= |sum_#in~n| sum_~n)) [2019-10-22 11:21:04,890 INFO L443 ceAbstractionStarter]: For program point L7-1(line 7) no Hoare annotation was computed. [2019-10-22 11:21:04,890 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 8) no Hoare annotation was computed. [2019-10-22 11:21:04,890 INFO L443 ceAbstractionStarter]: For program point sumFINAL(lines 3 9) no Hoare annotation was computed. [2019-10-22 11:21:04,890 INFO L446 ceAbstractionStarter]: At program point sumENTRY(lines 3 9) the Hoare annotation is: true [2019-10-22 11:21:04,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:21:04 BoogieIcfgContainer [2019-10-22 11:21:04,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:21:04,898 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:21:04,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:21:04,898 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:21:04,899 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:21:01" (3/4) ... [2019-10-22 11:21:04,907 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:21:04,916 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2019-10-22 11:21:04,920 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 11:21:04,921 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:21:04,972 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_573d9093-ece1-459a-af74-d9c641e8d92e/bin/utaipan/witness.graphml [2019-10-22 11:21:04,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:21:04,977 INFO L168 Benchmark]: Toolchain (without parser) took 3694.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 952.3 MB in the beginning and 979.4 MB in the end (delta: -27.1 MB). Peak memory consumption was 102.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:04,978 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:04,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.24 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:04,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:04,982 INFO L168 Benchmark]: Boogie Preprocessor took 21.45 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. [2019-10-22 11:21:04,986 INFO L168 Benchmark]: RCFGBuilder took 290.51 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:04,987 INFO L168 Benchmark]: TraceAbstraction took 2932.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.4 MB in the end (delta: 125.7 MB). Peak memory consumption was 125.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:21:04,987 INFO L168 Benchmark]: Witness Printer took 76.64 ms. Allocated memory is still 1.2 GB. Free memory is still 979.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:21:04,990 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 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.24 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 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 100.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.45 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 290.51 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2932.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.4 MB in the end (delta: 125.7 MB). Peak memory consumption was 125.7 MB. Max. memory is 11.5 GB. * Witness Printer took 76.64 ms. Allocated memory is still 1.2 GB. Free memory is still 979.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 25 SDslu, 45 SDs, 0 SdLazy, 104 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 17 SyntacticMatches, 10 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 15 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 3258 SizeOfPredicates, 12 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 8/8 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...