./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_3871428b-4374-4c42-96c8-4035d6ea5b9e/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3871428b-4374-4c42-96c8-4035d6ea5b9e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3871428b-4374-4c42-96c8-4035d6ea5b9e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3871428b-4374-4c42-96c8-4035d6ea5b9e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3871428b-4374-4c42-96c8-4035d6ea5b9e/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3871428b-4374-4c42-96c8-4035d6ea5b9e/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4d735b86941b4b144f047f65c32e604089b6d2a0 ................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:42,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:42,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:42,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:42,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:42,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:42,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:42,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:42,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:42,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:42,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:42,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:42,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:42,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:42,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:42,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:42,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:42,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:42,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:42,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:42,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:42,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:42,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:42,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:42,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:42,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:42,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:42,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:42,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:42,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:42,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:42,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:42,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:42,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:42,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:42,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:42,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:42,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:42,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:42,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:42,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:42,053 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3871428b-4374-4c42-96c8-4035d6ea5b9e/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-10-22 11:25:42,065 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:42,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:42,068 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:42,068 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:42,068 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:42,068 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:42,069 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:42,069 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:42,069 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:42,069 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:42,069 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:42,070 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:42,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:42,070 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:25:42,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:42,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:42,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:42,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:42,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:42,071 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 11:25:42,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:42,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:42,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:42,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:42,072 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:42,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:42,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:42,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:42,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:42,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:42,074 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:42,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:42,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:42,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:42,075 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_3871428b-4374-4c42-96c8-4035d6ea5b9e/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d735b86941b4b144f047f65c32e604089b6d2a0 [2019-10-22 11:25:42,108 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:42,118 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:42,124 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:42,125 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:42,126 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:42,126 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3871428b-4374-4c42-96c8-4035d6ea5b9e/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c [2019-10-22 11:25:42,171 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3871428b-4374-4c42-96c8-4035d6ea5b9e/bin/utaipan/data/9a35a60e9/595e72a17ee945fda8cff22c6dfaeacc/FLAG6542b124a [2019-10-22 11:25:42,554 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:42,554 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3871428b-4374-4c42-96c8-4035d6ea5b9e/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c [2019-10-22 11:25:42,558 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3871428b-4374-4c42-96c8-4035d6ea5b9e/bin/utaipan/data/9a35a60e9/595e72a17ee945fda8cff22c6dfaeacc/FLAG6542b124a [2019-10-22 11:25:42,567 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3871428b-4374-4c42-96c8-4035d6ea5b9e/bin/utaipan/data/9a35a60e9/595e72a17ee945fda8cff22c6dfaeacc [2019-10-22 11:25:42,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:42,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:42,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:42,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:42,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:42,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:42" (1/1) ... [2019-10-22 11:25:42,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27d067a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:42, skipping insertion in model container [2019-10-22 11:25:42,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:42" (1/1) ... [2019-10-22 11:25:42,585 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:42,600 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:42,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:42,759 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:42,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:42,883 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:42,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:42 WrapperNode [2019-10-22 11:25:42,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:42,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:42,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:42,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:42,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:42" (1/1) ... [2019-10-22 11:25:42,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:42" (1/1) ... [2019-10-22 11:25:42,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:42,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:42,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:42,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:42,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:42" (1/1) ... [2019-10-22 11:25:42,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:42" (1/1) ... [2019-10-22 11:25:42,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:42" (1/1) ... [2019-10-22 11:25:42,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:42" (1/1) ... [2019-10-22 11:25:42,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:42" (1/1) ... [2019-10-22 11:25:42,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:42" (1/1) ... [2019-10-22 11:25:42,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:42" (1/1) ... [2019-10-22 11:25:42,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:42,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:42,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:42,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:42,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3871428b-4374-4c42-96c8-4035d6ea5b9e/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 11:25:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:42,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:43,164 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:43,164 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 11:25:43,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:43 BoogieIcfgContainer [2019-10-22 11:25:43,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:43,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:43,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:43,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:43,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:42" (1/3) ... [2019-10-22 11:25:43,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdd6b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:43, skipping insertion in model container [2019-10-22 11:25:43,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:42" (2/3) ... [2019-10-22 11:25:43,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdd6b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:43, skipping insertion in model container [2019-10-22 11:25:43,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:43" (3/3) ... [2019-10-22 11:25:43,176 INFO L109 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c [2019-10-22 11:25:43,184 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:43,189 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-10-22 11:25:43,198 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-10-22 11:25:43,220 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:43,221 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:43,221 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:43,221 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:43,221 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:43,221 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:43,221 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:43,221 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:43,237 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-10-22 11:25:43,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:25:43,242 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:43,243 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:25:43,244 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:25:43,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:43,250 INFO L82 PathProgramCache]: Analyzing trace with hash 959367, now seen corresponding path program 1 times [2019-10-22 11:25:43,258 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:43,258 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216432531] [2019-10-22 11:25:43,258 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:43,258 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:43,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:25:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:25:43,378 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:25:43,379 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:25:43,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:25:43 BoogieIcfgContainer [2019-10-22 11:25:43,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:25:43,398 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:25:43,398 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:25:43,398 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:25:43,399 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:43" (3/4) ... [2019-10-22 11:25:43,401 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:25:43,440 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3871428b-4374-4c42-96c8-4035d6ea5b9e/bin/utaipan/witness.graphml [2019-10-22 11:25:43,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:25:43,444 INFO L168 Benchmark]: Toolchain (without parser) took 872.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:43,444 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 11:25:43,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -214.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:43,445 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:43,445 INFO L168 Benchmark]: Boogie Preprocessor took 18.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:43,446 INFO L168 Benchmark]: RCFGBuilder took 226.69 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:43,446 INFO L168 Benchmark]: TraceAbstraction took 231.39 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:43,447 INFO L168 Benchmark]: Witness Printer took 44.06 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 11:25:43,451 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 312.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -214.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 226.69 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: 23.9 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 231.39 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * Witness Printer took 44.06 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 21]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int i, j, k, an, bn, tk; [L15] i = __VERIFIER_nondet_int() [L16] j = __VERIFIER_nondet_int() [L17] k = __VERIFIER_nondet_int() [L18] an = __VERIFIER_nondet_int() [L19] bn = __VERIFIER_nondet_int() [L20] tk = __VERIFIER_nondet_int() [L21] ((an >= i && bn >= j) || (an >= i && bn <= j) || (an <= i && bn >= j)) && k >= tk + 1 [L21] tk + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 10 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...