./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/float_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/float_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/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 773baadb55b498633b84884838d360efb3aec808 .................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/float_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/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 773baadb55b498633b84884838d360efb3aec808 ............................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:52:11,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:52:11,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:52:11,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:52:11,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:52:11,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:52:11,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:52:11,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:52:11,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:52:11,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:52:11,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:52:11,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:52:11,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:52:11,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:52:11,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:52:11,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:52:11,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:52:11,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:52:11,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:52:11,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:52:11,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:52:11,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:52:11,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:52:11,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:52:11,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:52:11,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:52:11,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:52:11,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:52:11,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:52:11,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:52:11,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:52:11,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:52:11,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:52:11,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:52:11,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:52:11,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:52:11,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:52:11,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:52:11,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:52:11,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:52:11,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:52:11,152 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 10:52:11,163 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:52:11,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:52:11,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:52:11,164 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:52:11,164 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:52:11,164 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:52:11,164 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 10:52:11,164 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:52:11,164 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:52:11,164 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 10:52:11,165 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 10:52:11,165 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:52:11,165 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 10:52:11,165 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 10:52:11,165 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 10:52:11,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:52:11,166 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:52:11,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:52:11,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:52:11,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:52:11,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:52:11,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:52:11,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:52:11,167 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:52:11,167 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:52:11,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:52:11,167 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:52:11,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:52:11,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:52:11,168 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:52:11,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:52:11,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:52:11,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:52:11,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:52:11,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:52:11,168 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 10:52:11,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:52:11,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:52:11,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:52:11,169 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:52:11,169 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/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 -> 773baadb55b498633b84884838d360efb3aec808 [2019-12-07 10:52:11,268 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:52:11,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:52:11,279 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:52:11,280 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:52:11,280 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:52:11,281 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/../../sv-benchmarks/c/float-benchs/float_double.c [2019-12-07 10:52:11,323 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/data/c9bc60274/1fc2f1d712a14ee9be85dc540c2f4048/FLAG3a63037e2 [2019-12-07 10:52:11,643 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:52:11,644 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/sv-benchmarks/c/float-benchs/float_double.c [2019-12-07 10:52:11,647 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/data/c9bc60274/1fc2f1d712a14ee9be85dc540c2f4048/FLAG3a63037e2 [2019-12-07 10:52:12,087 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/data/c9bc60274/1fc2f1d712a14ee9be85dc540c2f4048 [2019-12-07 10:52:12,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:52:12,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:52:12,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:52:12,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:52:12,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:52:12,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:52:12" (1/1) ... [2019-12-07 10:52:12,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4de5e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:12, skipping insertion in model container [2019-12-07 10:52:12,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:52:12" (1/1) ... [2019-12-07 10:52:12,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:52:12,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:52:12,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:52:12,212 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:52:12,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:52:12,262 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:52:12,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:12 WrapperNode [2019-12-07 10:52:12,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:52:12,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:52:12,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:52:12,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:52:12,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:12" (1/1) ... [2019-12-07 10:52:12,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:12" (1/1) ... [2019-12-07 10:52:12,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:52:12,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:52:12,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:52:12,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:52:12,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:12" (1/1) ... [2019-12-07 10:52:12,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:12" (1/1) ... [2019-12-07 10:52:12,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:12" (1/1) ... [2019-12-07 10:52:12,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:12" (1/1) ... [2019-12-07 10:52:12,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:12" (1/1) ... [2019-12-07 10:52:12,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:12" (1/1) ... [2019-12-07 10:52:12,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:12" (1/1) ... [2019-12-07 10:52:12,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:52:12,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:52:12,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:52:12,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:52:12,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:52:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:52:12,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:52:12,421 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:52:12,421 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 10:52:12,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:52:12 BoogieIcfgContainer [2019-12-07 10:52:12,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:52:12,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:52:12,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:52:12,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:52:12,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:52:12" (1/3) ... [2019-12-07 10:52:12,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6ed84a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:52:12, skipping insertion in model container [2019-12-07 10:52:12,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:12" (2/3) ... [2019-12-07 10:52:12,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6ed84a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:52:12, skipping insertion in model container [2019-12-07 10:52:12,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:52:12" (3/3) ... [2019-12-07 10:52:12,427 INFO L109 eAbstractionObserver]: Analyzing ICFG float_double.c [2019-12-07 10:52:12,433 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:52:12,436 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 10:52:12,443 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 10:52:12,458 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:52:12,458 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:52:12,458 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:52:12,458 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:52:12,458 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:52:12,458 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:52:12,458 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:52:12,458 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:52:12,467 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-12-07 10:52:12,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 10:52:12,470 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:52:12,470 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 10:52:12,471 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:52:12,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:52:12,474 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-12-07 10:52:12,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 10:52:12,480 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69276031] [2019-12-07 10:52:12,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:52:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:52:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:52:12,549 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 10:52:12,549 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:52:12,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:52:12 BoogieIcfgContainer [2019-12-07 10:52:12,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:52:12,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:52:12,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:52:12,559 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:52:12,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:52:12" (3/4) ... [2019-12-07 10:52:12,561 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 10:52:12,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:52:12,563 INFO L168 Benchmark]: Toolchain (without parser) took 472.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -114.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:52:12,564 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:52:12,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:52:12,565 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.48 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. [2019-12-07 10:52:12,565 INFO L168 Benchmark]: Boogie Preprocessor took 10.84 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. [2019-12-07 10:52:12,565 INFO L168 Benchmark]: RCFGBuilder took 128.49 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:52:12,566 INFO L168 Benchmark]: TraceAbstraction took 135.93 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:52:12,566 INFO L168 Benchmark]: Witness Printer took 2.73 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. [2019-12-07 10:52:12,569 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.48 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 10.84 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 128.49 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 135.93 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.73 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 8. Possible FailurePath: [L8] double x = 1e20 + 1.; [L9] float y = x; [L4] COND TRUE !(cond) [L4] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.0s, 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=6occurred 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, 3 NumberOfCodeBlocks, 3 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 10:52:13,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:52:13,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:52:13,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:52:13,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:52:13,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:52:13,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:52:13,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:52:13,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:52:13,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:52:13,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:52:13,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:52:13,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:52:13,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:52:13,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:52:13,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:52:13,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:52:13,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:52:13,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:52:13,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:52:13,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:52:13,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:52:13,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:52:13,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:52:13,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:52:13,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:52:13,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:52:13,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:52:13,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:52:13,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:52:13,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:52:13,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:52:13,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:52:13,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:52:13,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:52:13,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:52:13,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:52:13,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:52:13,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:52:13,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:52:13,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:52:13,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 10:52:13,940 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:52:13,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:52:13,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 10:52:13,941 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 10:52:13,942 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 10:52:13,942 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 10:52:13,942 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 10:52:13,942 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 10:52:13,942 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 10:52:13,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:52:13,943 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:52:13,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:52:13,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:52:13,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:52:13,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:52:13,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:52:13,944 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 10:52:13,944 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 10:52:13,945 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 10:52:13,945 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:52:13,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:52:13,945 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:52:13,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:52:13,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:52:13,946 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:52:13,946 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:52:13,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:52:13,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:52:13,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:52:13,947 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:52:13,947 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:52:13,947 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 10:52:13,947 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 10:52:13,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:52:13,948 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:52:13,948 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:52:13,948 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/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 -> 773baadb55b498633b84884838d360efb3aec808 [2019-12-07 10:52:14,108 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:52:14,119 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:52:14,122 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:52:14,123 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:52:14,123 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:52:14,124 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/../../sv-benchmarks/c/float-benchs/float_double.c [2019-12-07 10:52:14,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/data/9f4e9c7e7/d4ff6fcc8cd349b887dfb58b851f5fbb/FLAGdd6ee5251 [2019-12-07 10:52:14,574 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:52:14,575 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/sv-benchmarks/c/float-benchs/float_double.c [2019-12-07 10:52:14,578 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/data/9f4e9c7e7/d4ff6fcc8cd349b887dfb58b851f5fbb/FLAGdd6ee5251 [2019-12-07 10:52:14,959 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/data/9f4e9c7e7/d4ff6fcc8cd349b887dfb58b851f5fbb [2019-12-07 10:52:14,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:52:14,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:52:14,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:52:14,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:52:14,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:52:14,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:52:14" (1/1) ... [2019-12-07 10:52:14,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a0f9973 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:14, skipping insertion in model container [2019-12-07 10:52:14,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:52:14" (1/1) ... [2019-12-07 10:52:14,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:52:14,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:52:15,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:52:15,084 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:52:15,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:52:15,102 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:52:15,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:15 WrapperNode [2019-12-07 10:52:15,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:52:15,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:52:15,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:52:15,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:52:15,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:15" (1/1) ... [2019-12-07 10:52:15,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:15" (1/1) ... [2019-12-07 10:52:15,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:52:15,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:52:15,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:52:15,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:52:15,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:15" (1/1) ... [2019-12-07 10:52:15,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:15" (1/1) ... [2019-12-07 10:52:15,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:15" (1/1) ... [2019-12-07 10:52:15,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:15" (1/1) ... [2019-12-07 10:52:15,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:15" (1/1) ... [2019-12-07 10:52:15,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:15" (1/1) ... [2019-12-07 10:52:15,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:15" (1/1) ... [2019-12-07 10:52:15,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:52:15,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:52:15,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:52:15,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:52:15,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:52:15,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:52:15,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:52:15,400 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:52:15,400 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 10:52:15,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:52:15 BoogieIcfgContainer [2019-12-07 10:52:15,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:52:15,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:52:15,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:52:15,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:52:15,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:52:14" (1/3) ... [2019-12-07 10:52:15,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401ffb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:52:15, skipping insertion in model container [2019-12-07 10:52:15,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:52:15" (2/3) ... [2019-12-07 10:52:15,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401ffb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:52:15, skipping insertion in model container [2019-12-07 10:52:15,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:52:15" (3/3) ... [2019-12-07 10:52:15,405 INFO L109 eAbstractionObserver]: Analyzing ICFG float_double.c [2019-12-07 10:52:15,412 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:52:15,416 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 10:52:15,423 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 10:52:15,439 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:52:15,439 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:52:15,439 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:52:15,439 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:52:15,439 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:52:15,439 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:52:15,439 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:52:15,439 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:52:15,449 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 10:52:15,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 10:52:15,453 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:52:15,453 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 10:52:15,454 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:52:15,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:52:15,457 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-12-07 10:52:15,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 10:52:15,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118564259] [2019-12-07 10:52:15,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 10:52:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:52:15,526 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:52:15,529 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:52:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:52:15,652 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 10:52:15,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:52:15,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118564259] [2019-12-07 10:52:15,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:52:15,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 10:52:15,679 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855902723] [2019-12-07 10:52:15,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 10:52:15,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 10:52:15,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 10:52:15,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:52:15,692 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-12-07 10:52:15,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:52:15,707 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-12-07 10:52:15,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 10:52:15,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-12-07 10:52:15,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 10:52:15,712 INFO L225 Difference]: With dead ends: 13 [2019-12-07 10:52:15,713 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 10:52:15,714 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 10:52:15,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 10:52:15,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 10:52:15,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 10:52:15,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 10:52:15,731 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-12-07 10:52:15,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 10:52:15,731 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:52:15,731 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 10:52:15,731 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:52:15,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 10:52:15,932 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 10:52:15,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 10:52:15,999 INFO L242 CegarLoopResult]: At program point L4-3(line 4) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-12-07 10:52:15,999 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 10:52:15,999 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 10:52:15,999 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 10:52:15,999 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 10:52:15,999 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-12-07 10:52:15,999 INFO L242 CegarLoopResult]: At program point L11(lines 6 12) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-12-07 10:52:15,999 INFO L246 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2019-12-07 10:52:15,999 INFO L246 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2019-12-07 10:52:16,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:52:16 BoogieIcfgContainer [2019-12-07 10:52:16,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:52:16,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:52:16,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:52:16,009 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:52:16,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:52:15" (3/4) ... [2019-12-07 10:52:16,012 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 10:52:16,018 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 10:52:16,018 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 10:52:16,018 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 10:52:16,044 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fcf244cc-65df-4bf7-881a-fbbaee9d88b4/bin/utaipan/witness.graphml [2019-12-07 10:52:16,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:52:16,045 INFO L168 Benchmark]: Toolchain (without parser) took 1082.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -102.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:52:16,046 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:52:16,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.41 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 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. [2019-12-07 10:52:16,046 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.56 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:52:16,047 INFO L168 Benchmark]: Boogie Preprocessor took 47.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:52:16,047 INFO L168 Benchmark]: RCFGBuilder took 229.25 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: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:52:16,047 INFO L168 Benchmark]: TraceAbstraction took 607.54 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: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. [2019-12-07 10:52:16,048 INFO L168 Benchmark]: Witness Printer took 34.94 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:52:16,050 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.41 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 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 20.56 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 229.25 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: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 607.54 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: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. * Witness Printer took 34.94 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 2 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 4 NumberOfFragments, 10 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 6 NumberOfNonLiveVariables, 9 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...