./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/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 ca3708fe76c0d5fcf2081cc4044485827bf478fe .................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/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 ca3708fe76c0d5fcf2081cc4044485827bf478fe ..................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:36,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:36,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:36,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:36,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:36,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:36,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:36,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:36,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:36,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:36,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:36,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:36,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:36,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:36,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:36,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:36,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:36,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:36,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:36,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:36,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:36,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:36,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:36,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:36,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:36,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:36,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:36,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:36,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:36,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:36,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:36,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:36,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:36,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:36,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:36,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:36,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:36,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:36,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:36,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:36,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:36,190 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:25:36,202 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:36,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:36,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:36,210 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:36,210 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:36,210 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:36,210 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:25:36,210 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:36,211 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:36,211 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:25:36,211 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:25:36,211 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:36,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:36,212 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:36,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:25:36,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:36,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:36,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:36,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:36,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:36,213 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:36,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:36,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:36,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:36,214 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:36,214 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:36,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:36,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:36,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:36,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:36,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:36,216 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:25:36,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:25:36,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:36,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:36,216 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/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 -> ca3708fe76c0d5fcf2081cc4044485827bf478fe [2019-10-22 11:25:36,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:36,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:36,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:36,256 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:36,256 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:36,257 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-10-22 11:25:36,310 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/data/1b6bd04db/4d862e06ec4544788cae3dfa94b1c1b0/FLAGc8b8bec2c [2019-10-22 11:25:36,687 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:36,688 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-10-22 11:25:36,696 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/data/1b6bd04db/4d862e06ec4544788cae3dfa94b1c1b0/FLAGc8b8bec2c [2019-10-22 11:25:36,708 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/data/1b6bd04db/4d862e06ec4544788cae3dfa94b1c1b0 [2019-10-22 11:25:36,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:36,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:36,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:36,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:36,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:36,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:36" (1/1) ... [2019-10-22 11:25:36,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@437b683f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:36, skipping insertion in model container [2019-10-22 11:25:36,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:36" (1/1) ... [2019-10-22 11:25:36,726 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:36,741 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:36,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:36,923 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:37,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:37,021 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:37,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37 WrapperNode [2019-10-22 11:25:37,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:37,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:37,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:37,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:37,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:37,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:37,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:37,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:37,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:37,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:37,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:37,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:37,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:37,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:37,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:37,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:37,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... [2019-10-22 11:25:37,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:37,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:37,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:37,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:37,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:37,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:37,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:37,229 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:37,229 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:25:37,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:37 BoogieIcfgContainer [2019-10-22 11:25:37,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:37,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:37,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:37,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:37,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:36" (1/3) ... [2019-10-22 11:25:37,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7c771a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:37, skipping insertion in model container [2019-10-22 11:25:37,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:37" (2/3) ... [2019-10-22 11:25:37,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7c771a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:37, skipping insertion in model container [2019-10-22 11:25:37,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:37" (3/3) ... [2019-10-22 11:25:37,238 INFO L109 eAbstractionObserver]: Analyzing ICFG float12.c [2019-10-22 11:25:37,248 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:37,254 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:25:37,265 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:25:37,287 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:37,287 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:37,287 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:37,287 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:37,288 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:37,288 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:37,288 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:37,288 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:37,302 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-10-22 11:25:37,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:25:37,315 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:37,316 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:25:37,319 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:37,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:37,326 INFO L82 PathProgramCache]: Analyzing trace with hash 957381, now seen corresponding path program 1 times [2019-10-22 11:25:37,335 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:25:37,336 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674772010] [2019-10-22 11:25:37,336 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:37,337 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:25:37,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:25:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:25:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:25:37,430 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:25:37,431 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:25:37,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:25:37 BoogieIcfgContainer [2019-10-22 11:25:37,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:25:37,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:25:37,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:25:37,448 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:25:37,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:37" (3/4) ... [2019-10-22 11:25:37,451 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:25:37,451 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:25:37,455 INFO L168 Benchmark]: Toolchain (without parser) took 741.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -176.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:37,455 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:37,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -206.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:37,457 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:37,457 INFO L168 Benchmark]: Boogie Preprocessor took 15.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:37,458 INFO L168 Benchmark]: RCFGBuilder took 154.48 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:37,458 INFO L168 Benchmark]: TraceAbstraction took 215.59 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. [2019-10-22 11:25:37,459 INFO L168 Benchmark]: Witness Printer took 4.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:37,461 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 308.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 944.5 MB in the beginning and 1.2 GB in the end (delta: -206.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 154.48 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 215.59 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 4.52 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: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L6] float f = __VERIFIER_nondet_float(); [L7] double d; [L8] unsigned char x = __VERIFIER_nondet_uchar(); [L10] d=f [L12] COND TRUE f==x [L13] COND TRUE !(d==x) [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:25:39,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:25:39,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:25:39,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:25:39,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:25:39,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:25:39,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:25:39,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:25:39,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:25:39,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:25:39,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:25:39,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:25:39,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:25:39,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:25:39,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:25:39,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:25:39,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:25:39,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:25:39,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:25:39,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:25:39,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:25:39,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:25:39,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:25:39,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:25:39,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:25:39,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:25:39,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:25:39,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:25:39,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:25:39,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:25:39,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:25:39,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:25:39,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:25:39,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:25:39,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:25:39,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:25:39,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:25:39,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:25:39,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:25:39,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:25:39,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:25:39,548 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:25:39,564 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:25:39,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:25:39,565 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:25:39,565 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:25:39,565 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:25:39,566 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:25:39,566 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:25:39,566 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:25:39,566 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:25:39,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:25:39,567 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:25:39,567 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:25:39,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:25:39,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:25:39,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:25:39,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:25:39,568 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:25:39,568 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:25:39,568 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:25:39,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:25:39,568 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:25:39,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:25:39,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:25:39,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:25:39,570 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:25:39,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:25:39,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:39,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:25:39,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:25:39,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:25:39,571 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:25:39,571 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:25:39,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:25:39,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:25:39,572 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/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 -> ca3708fe76c0d5fcf2081cc4044485827bf478fe [2019-10-22 11:25:39,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:25:39,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:25:39,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:25:39,613 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:25:39,614 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:25:39,614 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-10-22 11:25:39,661 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/data/20ce7c666/d2e2abe60af240759717c29745dd499e/FLAGafe86b223 [2019-10-22 11:25:40,043 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:25:40,043 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/sv-benchmarks/c/floats-cbmc-regression/float12.c [2019-10-22 11:25:40,047 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/data/20ce7c666/d2e2abe60af240759717c29745dd499e/FLAGafe86b223 [2019-10-22 11:25:40,446 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/data/20ce7c666/d2e2abe60af240759717c29745dd499e [2019-10-22 11:25:40,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:25:40,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:25:40,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:40,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:25:40,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:25:40,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:40" (1/1) ... [2019-10-22 11:25:40,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f513c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:40, skipping insertion in model container [2019-10-22 11:25:40,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:25:40" (1/1) ... [2019-10-22 11:25:40,463 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:25:40,476 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:25:40,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:40,600 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:25:40,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:25:40,625 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:25:40,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:40 WrapperNode [2019-10-22 11:25:40,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:25:40,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:40,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:25:40,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:25:40,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:40" (1/1) ... [2019-10-22 11:25:40,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:40" (1/1) ... [2019-10-22 11:25:40,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:25:40,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:25:40,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:25:40,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:25:40,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:40" (1/1) ... [2019-10-22 11:25:40,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:40" (1/1) ... [2019-10-22 11:25:40,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:40" (1/1) ... [2019-10-22 11:25:40,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:40" (1/1) ... [2019-10-22 11:25:40,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:40" (1/1) ... [2019-10-22 11:25:40,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:40" (1/1) ... [2019-10-22 11:25:40,741 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:40" (1/1) ... [2019-10-22 11:25:40,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:25:40,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:25:40,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:25:40,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:25:40,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:25:40,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:25:40,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:25:41,000 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:25:41,000 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:25:41,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:41 BoogieIcfgContainer [2019-10-22 11:25:41,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:25:41,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:25:41,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:25:41,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:25:41,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:25:40" (1/3) ... [2019-10-22 11:25:41,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c97cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:41, skipping insertion in model container [2019-10-22 11:25:41,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:25:40" (2/3) ... [2019-10-22 11:25:41,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c97cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:25:41, skipping insertion in model container [2019-10-22 11:25:41,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:41" (3/3) ... [2019-10-22 11:25:41,010 INFO L109 eAbstractionObserver]: Analyzing ICFG float12.c [2019-10-22 11:25:41,020 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:25:41,025 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:25:41,034 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:25:41,056 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:25:41,056 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:25:41,056 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:25:41,056 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:25:41,056 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:25:41,057 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:25:41,057 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:25:41,057 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:25:41,070 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-10-22 11:25:41,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:25:41,075 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:25:41,076 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:25:41,077 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:25:41,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:25:41,085 INFO L82 PathProgramCache]: Analyzing trace with hash 957381, now seen corresponding path program 1 times [2019-10-22 11:25:41,095 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:25:41,096 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135478797] [2019-10-22 11:25:41,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/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 [2019-10-22 11:25:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:25:41,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 11:25:41,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:25:41,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:41,831 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:25:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:25:43,014 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135478797] [2019-10-22 11:25:43,015 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:25:43,015 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-10-22 11:25:43,015 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554697968] [2019-10-22 11:25:43,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:25:43,019 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:25:43,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:25:43,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:25:43,032 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 6 states. [2019-10-22 11:25:44,991 WARN L191 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2019-10-22 11:25:45,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:25:45,132 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2019-10-22 11:25:45,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:25:45,140 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-10-22 11:25:45,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:25:45,148 INFO L225 Difference]: With dead ends: 14 [2019-10-22 11:25:45,148 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:25:45,151 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:25:45,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:25:45,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:25:45,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:25:45,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:25:45,178 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-10-22 11:25:45,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:25:45,178 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:25:45,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:25:45,178 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:25:45,179 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:25:45,385 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:25:45,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:25:45,391 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:25:45,391 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:25:45,391 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:25:45,391 INFO L443 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2019-10-22 11:25:45,392 INFO L443 ceAbstractionStarter]: For program point L12(lines 12 13) no Hoare annotation was computed. [2019-10-22 11:25:45,392 INFO L443 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2019-10-22 11:25:45,392 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 14) no Hoare annotation was computed. [2019-10-22 11:25:45,392 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-10-22 11:25:45,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:25:45 BoogieIcfgContainer [2019-10-22 11:25:45,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:25:45,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:25:45,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:25:45,395 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:25:45,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:25:41" (3/4) ... [2019-10-22 11:25:45,398 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:25:45,407 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:25:45,408 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:25:45,440 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ea6856ac-b75e-4e4e-914c-dcadb76ad226/bin/utaipan/witness.graphml [2019-10-22 11:25:45,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:25:45,442 INFO L168 Benchmark]: Toolchain (without parser) took 4992.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -149.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:45,442 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:45,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.85 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:45,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.39 ms. Allocated memory is still 1.0 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:25:45,444 INFO L168 Benchmark]: Boogie Preprocessor took 90.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 940.2 MB in the beginning and 1.2 GB in the end (delta: -211.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:45,444 INFO L168 Benchmark]: RCFGBuilder took 253.92 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: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:45,445 INFO L168 Benchmark]: TraceAbstraction took 4392.37 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: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:25:45,445 INFO L168 Benchmark]: Witness Printer took 45.55 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. [2019-10-22 11:25:45,448 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.85 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 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 30.39 ms. Allocated memory is still 1.0 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 90.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 940.2 MB in the beginning and 1.2 GB in the end (delta: -211.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 253.92 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: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4392.37 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: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * Witness Printer took 45.55 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: 13]: 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 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 4.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 111 SizeOfPredicates, 4 NumberOfNonLiveVariables, 8 ConjunctsInSsa, 3 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...