./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9.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_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/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 8c261c4c4bb9c8a95f9cb14c668da53a89a0d0c6 ...................................................................................................................................................................................................................................................................... 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 11:27:07,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:07,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:07,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:07,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:07,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:07,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:07,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:07,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:07,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:07,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:07,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:07,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:07,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:07,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:07,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:07,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:07,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:07,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:07,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:07,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:07,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:07,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:07,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:07,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:07,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:07,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:07,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:07,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:07,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:07,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:07,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:07,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:07,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:07,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:07,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:07,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:07,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:07,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:07,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:07,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:07,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-10-22 11:27:07,124 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:07,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:07,135 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:07,135 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:07,135 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:07,135 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:07,136 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:27:07,136 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:07,136 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:07,136 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:27:07,136 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:27:07,136 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:07,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:07,137 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:27:07,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:27:07,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:07,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:27:07,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:07,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:27:07,138 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 11:27:07,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:27:07,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:27:07,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:07,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:07,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:07,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:07,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:07,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:07,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:07,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:27:07,141 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:27:07,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:27:07,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:27:07,141 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:07,141 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_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/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 -> 8c261c4c4bb9c8a95f9cb14c668da53a89a0d0c6 [2019-10-22 11:27:07,174 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:07,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:07,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:07,189 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:07,190 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:07,190 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9.c [2019-10-22 11:27:07,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/bin/utaipan/data/98bc1336b/c7d5bcb32d4b46328730c39e8162e91a/FLAGb61688b8d [2019-10-22 11:27:07,605 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:07,606 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9.c [2019-10-22 11:27:07,610 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/bin/utaipan/data/98bc1336b/c7d5bcb32d4b46328730c39e8162e91a/FLAGb61688b8d [2019-10-22 11:27:07,619 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/bin/utaipan/data/98bc1336b/c7d5bcb32d4b46328730c39e8162e91a [2019-10-22 11:27:07,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:07,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:07,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:07,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:07,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:07,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:07" (1/1) ... [2019-10-22 11:27:07,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40e35639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:07, skipping insertion in model container [2019-10-22 11:27:07,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:07" (1/1) ... [2019-10-22 11:27:07,636 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:07,646 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:07,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:07,790 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:07,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:07,871 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:07,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:07 WrapperNode [2019-10-22 11:27:07,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:07,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:07,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:07,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:07,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:07" (1/1) ... [2019-10-22 11:27:07,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:07" (1/1) ... [2019-10-22 11:27:07,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:07,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:07,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:07,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:07,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:07" (1/1) ... [2019-10-22 11:27:07,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:07" (1/1) ... [2019-10-22 11:27:07,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:07" (1/1) ... [2019-10-22 11:27:07,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:07" (1/1) ... [2019-10-22 11:27:07,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:07" (1/1) ... [2019-10-22 11:27:07,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:07" (1/1) ... [2019-10-22 11:27:07,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:07" (1/1) ... [2019-10-22 11:27:07,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:07,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:07,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:07,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:07,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/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 11:27:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:07,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:08,133 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:08,134 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 11:27:08,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:08 BoogieIcfgContainer [2019-10-22 11:27:08,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:08,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:08,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:08,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:08,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:07" (1/3) ... [2019-10-22 11:27:08,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81fd2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:08, skipping insertion in model container [2019-10-22 11:27:08,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:07" (2/3) ... [2019-10-22 11:27:08,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@81fd2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:08, skipping insertion in model container [2019-10-22 11:27:08,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:08" (3/3) ... [2019-10-22 11:27:08,142 INFO L109 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-WST2014-Ex9.c [2019-10-22 11:27:08,151 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:08,158 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-22 11:27:08,176 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-22 11:27:08,202 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:08,202 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:27:08,202 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:08,202 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:08,203 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:08,203 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:08,203 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:08,203 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:08,217 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-10-22 11:27:08,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:27:08,228 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:08,228 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:27:08,230 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:27:08,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:08,235 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-10-22 11:27:08,243 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:08,243 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528673150] [2019-10-22 11:27:08,244 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:08,244 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:08,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:08,454 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 11:27:08,455 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528673150] [2019-10-22 11:27:08,456 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:08,456 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:27:08,456 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223501288] [2019-10-22 11:27:08,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:08,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:08,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:08,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:08,477 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2019-10-22 11:27:08,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:08,507 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-10-22 11:27:08,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:27:08,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-10-22 11:27:08,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:08,516 INFO L225 Difference]: With dead ends: 14 [2019-10-22 11:27:08,516 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:27:08,519 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:08,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:27:08,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:27:08,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:27:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:27:08,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-10-22 11:27:08,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:08,538 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:27:08,538 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:08,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:27:08,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:27:08,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:27:08,555 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:27:08,555 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:27:08,555 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:27:08,555 INFO L439 ceAbstractionStarter]: At program point L16(lines 11 17) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-10-22 11:27:08,555 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-10-22 11:27:08,556 INFO L443 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2019-10-22 11:27:08,556 INFO L439 ceAbstractionStarter]: At program point L13-2(lines 13 15) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-10-22 11:27:08,556 INFO L443 ceAbstractionStarter]: For program point L13-3(lines 13 15) no Hoare annotation was computed. [2019-10-22 11:27:08,556 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-10-22 11:27:08,557 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-10-22 11:27:08,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:27:08 BoogieIcfgContainer [2019-10-22 11:27:08,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:27:08,568 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:27:08,568 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:27:08,569 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:27:08,569 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:08" (3/4) ... [2019-10-22 11:27:08,573 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:27:08,583 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:27:08,583 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:27:08,621 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e7ed5c21-7a95-4a6b-aa33-1dab2685e62f/bin/utaipan/witness.graphml [2019-10-22 11:27:08,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:27:08,623 INFO L168 Benchmark]: Toolchain (without parser) took 999.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -108.1 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:08,623 INFO L168 Benchmark]: CDTParser took 0.18 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 11:27:08,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -155.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:08,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:08,625 INFO L168 Benchmark]: Boogie Preprocessor took 23.94 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:08,626 INFO L168 Benchmark]: RCFGBuilder took 209.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:08,626 INFO L168 Benchmark]: TraceAbstraction took 432.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:08,627 INFO L168 Benchmark]: Witness Printer took 52.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:08,631 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -155.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.94 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 209.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 432.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Witness Printer took 52.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 2 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 6 SDslu, 3 SDs, 0 SdLazy, 7 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 correct! Received shutdown request...