./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/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 cdec0b8c4f67592438879c69401fb208f793f01e ........................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/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 cdec0b8c4f67592438879c69401fb208f793f01e ............................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:24:46,121 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:24:46,124 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:24:46,134 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:24:46,135 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:24:46,137 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:24:46,139 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:24:46,141 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:24:46,144 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:24:46,145 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:24:46,147 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:24:46,148 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:24:46,149 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:24:46,151 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:24:46,158 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:24:46,158 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:24:46,159 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:24:46,160 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:24:46,161 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:24:46,165 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:24:46,166 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:24:46,167 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:24:46,168 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:24:46,168 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:24:46,169 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:24:46,169 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:24:46,170 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:24:46,173 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:24:46,175 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:24:46,176 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:24:46,178 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:24:46,178 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:24:46,180 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:24:46,180 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:24:46,181 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:24:46,181 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:24:46,182 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 21:24:46,199 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:24:46,204 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:24:46,205 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:24:46,205 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 21:24:46,205 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 21:24:46,205 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 21:24:46,205 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 21:24:46,205 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 21:24:46,205 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 21:24:46,206 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 21:24:46,206 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 21:24:46,206 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:24:46,207 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:24:46,207 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:24:46,207 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:24:46,207 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:24:46,207 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:24:46,207 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:24:46,207 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:24:46,208 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:24:46,208 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:24:46,208 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:24:46,208 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:24:46,208 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:24:46,208 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:24:46,208 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:24:46,209 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:24:46,209 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:24:46,209 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:24:46,209 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:24:46,209 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 21:24:46,209 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:24:46,209 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:24:46,210 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:24:46,210 INFO L133 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_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/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 -> cdec0b8c4f67592438879c69401fb208f793f01e [2018-10-26 21:24:46,246 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:24:46,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:24:46,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:24:46,262 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:24:46,263 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:24:46,263 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i [2018-10-26 21:24:46,317 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/data/695399862/aa29f069133e418fbf62b11e04f94c44/FLAG991d4a8d3 [2018-10-26 21:24:46,699 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:24:46,700 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i [2018-10-26 21:24:46,706 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/data/695399862/aa29f069133e418fbf62b11e04f94c44/FLAG991d4a8d3 [2018-10-26 21:24:46,719 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/data/695399862/aa29f069133e418fbf62b11e04f94c44 [2018-10-26 21:24:46,721 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:24:46,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:24:46,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:24:46,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:24:46,727 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:24:46,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:24:46" (1/1) ... [2018-10-26 21:24:46,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48d206d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:46, skipping insertion in model container [2018-10-26 21:24:46,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:24:46" (1/1) ... [2018-10-26 21:24:46,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:24:46,757 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:24:46,913 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:24:46,917 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:24:46,933 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:24:46,946 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:24:46,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:46 WrapperNode [2018-10-26 21:24:46,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:24:46,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:24:46,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:24:46,948 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:24:46,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:46" (1/1) ... [2018-10-26 21:24:46,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:46" (1/1) ... [2018-10-26 21:24:46,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:24:46,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:24:46,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:24:46,973 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:24:46,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:46" (1/1) ... [2018-10-26 21:24:46,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:46" (1/1) ... [2018-10-26 21:24:46,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:46" (1/1) ... [2018-10-26 21:24:46,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:46" (1/1) ... [2018-10-26 21:24:46,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:46" (1/1) ... [2018-10-26 21:24:46,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:46" (1/1) ... [2018-10-26 21:24:46,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:46" (1/1) ... [2018-10-26 21:24:46,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:24:46,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:24:46,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:24:46,995 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:24:46,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/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 [2018-10-26 21:24:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:24:47,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:24:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:24:47,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:24:47,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:24:47,132 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:24:47,415 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:24:47,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:24:47 BoogieIcfgContainer [2018-10-26 21:24:47,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:24:47,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:24:47,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:24:47,425 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:24:47,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:24:46" (1/3) ... [2018-10-26 21:24:47,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f88f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:24:47, skipping insertion in model container [2018-10-26 21:24:47,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:46" (2/3) ... [2018-10-26 21:24:47,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f88f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:24:47, skipping insertion in model container [2018-10-26 21:24:47,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:24:47" (3/3) ... [2018-10-26 21:24:47,433 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp7_true-unreach-call_true-termination.i [2018-10-26 21:24:47,459 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:24:47,470 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:24:47,489 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:24:47,533 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:24:47,533 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:24:47,533 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:24:47,533 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:24:47,534 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:24:47,534 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:24:47,534 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:24:47,535 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:24:47,557 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-10-26 21:24:47,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-26 21:24:47,570 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:24:47,572 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:24:47,577 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:24:47,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:24:47,588 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-10-26 21:24:47,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:24:47,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:24:47,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:24:47,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:24:47,648 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:24:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 21:24:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 21:24:47,713 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 21:24:47,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:24:47 BoogieIcfgContainer [2018-10-26 21:24:47,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:24:47,741 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:24:47,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:24:47,742 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:24:47,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:24:47" (3/4) ... [2018-10-26 21:24:47,748 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 21:24:47,748 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:24:47,749 INFO L168 Benchmark]: Toolchain (without parser) took 1027.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 958.5 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:24:47,752 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:24:47,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.62 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:24:47,754 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.72 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:24:47,754 INFO L168 Benchmark]: Boogie Preprocessor took 21.48 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:24:47,755 INFO L168 Benchmark]: RCFGBuilder took 423.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -195.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-10-26 21:24:47,756 INFO L168 Benchmark]: TraceAbstraction took 321.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-10-26 21:24:47,759 INFO L168 Benchmark]: Witness Printer took 6.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:24:47,763 INFO L336 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 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 223.62 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.72 ms. Allocated memory is still 1.0 GB. Free memory is still 947.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.48 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 423.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -195.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 321.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 6.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8, overapproximation of someUnaryFLOAToperation at line 5. Possible FailurePath: [L4] float f = 0x1.9e0c22p-101f; [L5] float g = -0x1.3c9014p-50f; [L6] float target = -0x1p-149f; [L8] float result = f * g; VAL [\old(argc)=2, argc=2, argv={1:0}, argv={1:0}, f=13567505/21267647932558653966460912964485513216] [L10] COND TRUE !(result == target) VAL [\old(argc)=2, argc=2, argv={1:0}, argv={1:0}, f=13567505/21267647932558653966460912964485513216] [L10] __VERIFIER_error() VAL [\old(argc)=2, argc=2, argv={1:0}, argv={1:0}, f=13567505/21267647932558653966460912964485513216] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-1dbac8b [2018-10-26 21:24:50,184 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:24:50,186 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:24:50,197 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:24:50,198 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:24:50,199 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:24:50,200 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:24:50,202 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:24:50,204 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:24:50,205 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:24:50,206 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:24:50,206 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:24:50,207 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:24:50,208 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:24:50,209 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:24:50,210 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:24:50,211 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:24:50,213 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:24:50,216 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:24:50,217 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:24:50,219 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:24:50,220 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:24:50,225 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:24:50,226 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:24:50,226 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:24:50,227 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:24:50,228 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:24:50,229 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:24:50,230 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:24:50,232 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:24:50,232 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:24:50,233 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:24:50,233 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:24:50,233 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:24:50,235 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:24:50,236 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:24:50,236 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 21:24:50,251 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:24:50,251 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:24:50,252 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:24:50,253 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 21:24:50,253 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 21:24:50,253 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 21:24:50,253 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 21:24:50,253 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 21:24:50,254 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:24:50,255 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:24:50,255 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:24:50,256 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:24:50,256 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:24:50,256 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:24:50,256 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:24:50,256 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 21:24:50,257 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 21:24:50,257 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:24:50,257 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:24:50,257 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:24:50,257 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:24:50,257 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:24:50,258 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:24:50,258 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:24:50,258 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:24:50,260 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:24:50,260 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:24:50,261 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:24:50,261 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 21:24:50,261 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:24:50,261 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 21:24:50,261 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 21:24:50,262 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/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 -> cdec0b8c4f67592438879c69401fb208f793f01e [2018-10-26 21:24:50,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:24:50,316 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:24:50,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:24:50,322 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:24:50,322 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:24:50,323 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i [2018-10-26 21:24:50,386 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/data/ae0349e23/d0da358518614721995ca3f756394148/FLAGe14ede967 [2018-10-26 21:24:50,821 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:24:50,822 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i [2018-10-26 21:24:50,829 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/data/ae0349e23/d0da358518614721995ca3f756394148/FLAGe14ede967 [2018-10-26 21:24:50,848 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/data/ae0349e23/d0da358518614721995ca3f756394148 [2018-10-26 21:24:50,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:24:50,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:24:50,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:24:50,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:24:50,858 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:24:50,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:24:50" (1/1) ... [2018-10-26 21:24:50,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e1b2c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:50, skipping insertion in model container [2018-10-26 21:24:50,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:24:50" (1/1) ... [2018-10-26 21:24:50,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:24:50,896 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:24:51,115 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:24:51,124 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:24:51,148 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:24:51,164 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:24:51,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:51 WrapperNode [2018-10-26 21:24:51,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:24:51,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:24:51,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:24:51,166 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:24:51,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:51" (1/1) ... [2018-10-26 21:24:51,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:51" (1/1) ... [2018-10-26 21:24:51,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:24:51,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:24:51,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:24:51,191 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:24:51,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:51" (1/1) ... [2018-10-26 21:24:51,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:51" (1/1) ... [2018-10-26 21:24:51,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:51" (1/1) ... [2018-10-26 21:24:51,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:51" (1/1) ... [2018-10-26 21:24:51,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:51" (1/1) ... [2018-10-26 21:24:51,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:51" (1/1) ... [2018-10-26 21:24:51,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:51" (1/1) ... [2018-10-26 21:24:51,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:24:51,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:24:51,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:24:51,214 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:24:51,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/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 [2018-10-26 21:24:51,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:24:51,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:24:51,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:24:51,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:24:51,269 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:24:51,269 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:24:51,497 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:24:51,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:24:51 BoogieIcfgContainer [2018-10-26 21:24:51,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:24:51,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:24:51,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:24:51,502 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:24:51,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:24:50" (1/3) ... [2018-10-26 21:24:51,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459d3c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:24:51, skipping insertion in model container [2018-10-26 21:24:51,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:24:51" (2/3) ... [2018-10-26 21:24:51,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459d3c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:24:51, skipping insertion in model container [2018-10-26 21:24:51,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:24:51" (3/3) ... [2018-10-26 21:24:51,506 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp7_true-unreach-call_true-termination.i [2018-10-26 21:24:51,515 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:24:51,522 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:24:51,538 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:24:51,569 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:24:51,570 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:24:51,570 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:24:51,570 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:24:51,570 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:24:51,571 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:24:51,571 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:24:51,571 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:24:51,571 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:24:51,588 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-10-26 21:24:51,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-26 21:24:51,592 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:24:51,593 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:24:51,596 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:24:51,602 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:24:51,603 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-10-26 21:24:51,606 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 21:24:51,607 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 21:24:51,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 21:24:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:24:51,721 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:24:51,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:24:51,841 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 21:24:51,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:24:51,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:24:51,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:24:51,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:24:51,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:24:51,880 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2018-10-26 21:24:51,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:24:51,915 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-10-26 21:24:51,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:24:51,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-10-26 21:24:51,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:24:51,927 INFO L225 Difference]: With dead ends: 18 [2018-10-26 21:24:51,927 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 21:24:51,930 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:24:51,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 21:24:51,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 21:24:51,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 21:24:51,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 21:24:51,954 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-10-26 21:24:51,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:24:51,955 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 21:24:51,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:24:51,955 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 21:24:51,955 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 21:24:51,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 21:24:52,053 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 21:24:52,053 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:24:52,053 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:24:52,053 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 21:24:52,054 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:24:52,054 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:24:52,054 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 3 13) the Hoare annotation is: true [2018-10-26 21:24:52,054 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 3 13) no Hoare annotation was computed. [2018-10-26 21:24:52,054 INFO L425 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-10-26 21:24:52,054 INFO L425 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-10-26 21:24:52,055 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-10-26 21:24:52,055 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 3 13) no Hoare annotation was computed. [2018-10-26 21:24:52,055 INFO L425 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2018-10-26 21:24:52,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:24:52 BoogieIcfgContainer [2018-10-26 21:24:52,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:24:52,058 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:24:52,058 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:24:52,059 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:24:52,059 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:24:51" (3/4) ... [2018-10-26 21:24:52,063 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 21:24:52,070 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 21:24:52,071 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 21:24:52,076 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-10-26 21:24:52,076 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 21:24:52,076 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 21:24:52,122 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b3612d3e-579c-4d16-b628-4047a4f440d7/bin-2019/utaipan/witness.graphml [2018-10-26 21:24:52,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:24:52,123 INFO L168 Benchmark]: Toolchain (without parser) took 1271.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2018-10-26 21:24:52,125 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:24:52,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.67 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:24:52,126 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.84 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:24:52,126 INFO L168 Benchmark]: Boogie Preprocessor took 22.06 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 21:24:52,129 INFO L168 Benchmark]: RCFGBuilder took 284.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 937.1 MB in the beginning and 1.2 GB in the end (delta: -215.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2018-10-26 21:24:52,129 INFO L168 Benchmark]: TraceAbstraction took 558.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-10-26 21:24:52,130 INFO L168 Benchmark]: Witness Printer took 64.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-10-26 21:24:52,134 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 311.67 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 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 24.84 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.06 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 284.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.3 MB). Free memory was 937.1 MB in the beginning and 1.2 GB in the end (delta: -215.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 558.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * Witness Printer took 64.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 3 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 SizeOfPredicates, 4 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...