./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ............................................................................................................................................................................................................................................................... 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_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 .................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 18:42:23,388 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 18:42:23,390 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 18:42:23,399 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 18:42:23,399 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 18:42:23,400 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 18:42:23,401 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 18:42:23,402 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 18:42:23,403 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 18:42:23,404 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 18:42:23,405 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 18:42:23,405 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 18:42:23,406 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 18:42:23,406 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 18:42:23,407 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 18:42:23,408 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 18:42:23,408 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 18:42:23,410 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 18:42:23,411 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 18:42:23,412 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 18:42:23,413 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 18:42:23,414 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 18:42:23,416 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 18:42:23,416 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 18:42:23,416 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 18:42:23,417 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 18:42:23,418 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 18:42:23,418 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 18:42:23,419 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 18:42:23,420 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 18:42:23,420 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 18:42:23,420 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 18:42:23,421 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 18:42:23,421 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 18:42:23,421 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 18:42:23,422 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 18:42:23,422 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 18:42:23,434 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 18:42:23,434 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 18:42:23,434 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 18:42:23,435 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 18:42:23,435 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 18:42:23,435 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 18:42:23,435 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 18:42:23,435 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 18:42:23,435 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 18:42:23,435 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 18:42:23,435 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 18:42:23,435 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 18:42:23,436 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 18:42:23,436 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 18:42:23,436 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 18:42:23,436 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 18:42:23,436 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 18:42:23,437 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 18:42:23,437 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 18:42:23,437 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 18:42:23,437 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 18:42:23,437 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 18:42:23,437 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 18:42:23,437 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 18:42:23,438 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 18:42:23,438 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 18:42:23,438 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 18:42:23,438 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 18:42:23,438 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 18:42:23,438 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 18:42:23,438 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 18:42:23,439 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 18:42:23,439 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 18:42:23,439 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 18:42:23,439 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 18:42:23,439 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 18:42:23,439 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_4dc1de54-456c-4383-bdb7-b57ff937c7b0/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2018-12-02 18:42:23,464 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 18:42:23,475 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 18:42:23,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 18:42:23,480 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 18:42:23,480 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 18:42:23,481 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-12-02 18:42:23,527 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/data/4a4c04d25/cb4461e49eac4b2388535b3bc888063c/FLAG9f4573b5b [2018-12-02 18:42:23,975 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 18:42:23,975 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-12-02 18:42:23,978 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/data/4a4c04d25/cb4461e49eac4b2388535b3bc888063c/FLAG9f4573b5b [2018-12-02 18:42:23,988 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/data/4a4c04d25/cb4461e49eac4b2388535b3bc888063c [2018-12-02 18:42:23,991 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 18:42:23,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 18:42:23,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 18:42:23,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 18:42:23,996 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 18:42:23,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:42:23" (1/1) ... [2018-12-02 18:42:23,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a3ab934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:23, skipping insertion in model container [2018-12-02 18:42:23,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:42:23" (1/1) ... [2018-12-02 18:42:24,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 18:42:24,016 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 18:42:24,097 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 18:42:24,099 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 18:42:24,107 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 18:42:24,115 INFO L195 MainTranslator]: Completed translation [2018-12-02 18:42:24,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:24 WrapperNode [2018-12-02 18:42:24,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 18:42:24,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 18:42:24,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 18:42:24,116 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 18:42:24,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:24" (1/1) ... [2018-12-02 18:42:24,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:24" (1/1) ... [2018-12-02 18:42:24,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 18:42:24,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 18:42:24,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 18:42:24,128 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 18:42:24,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:24" (1/1) ... [2018-12-02 18:42:24,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:24" (1/1) ... [2018-12-02 18:42:24,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:24" (1/1) ... [2018-12-02 18:42:24,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:24" (1/1) ... [2018-12-02 18:42:24,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:24" (1/1) ... [2018-12-02 18:42:24,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:24" (1/1) ... [2018-12-02 18:42:24,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:24" (1/1) ... [2018-12-02 18:42:24,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 18:42:24,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 18:42:24,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 18:42:24,139 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 18:42:24,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/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 [2018-12-02 18:42:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 18:42:24,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 18:42:24,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 18:42:24,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 18:42:24,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 18:42:24,202 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 18:42:24,202 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2018-12-02 18:42:24,202 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2018-12-02 18:42:24,289 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 18:42:24,289 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 18:42:24,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:42:24 BoogieIcfgContainer [2018-12-02 18:42:24,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 18:42:24,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 18:42:24,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 18:42:24,292 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 18:42:24,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:42:23" (1/3) ... [2018-12-02 18:42:24,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f529205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:42:24, skipping insertion in model container [2018-12-02 18:42:24,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:24" (2/3) ... [2018-12-02 18:42:24,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f529205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:42:24, skipping insertion in model container [2018-12-02 18:42:24,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:42:24" (3/3) ... [2018-12-02 18:42:24,294 INFO L112 eAbstractionObserver]: Analyzing ICFG float3_true-unreach-call_true-termination.i [2018-12-02 18:42:24,299 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 18:42:24,303 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 18:42:24,314 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 18:42:24,334 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 18:42:24,334 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 18:42:24,334 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 18:42:24,335 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 18:42:24,335 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 18:42:24,335 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 18:42:24,335 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 18:42:24,335 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 18:42:24,348 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-12-02 18:42:24,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 18:42:24,352 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:42:24,352 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:42:24,353 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:42:24,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:42:24,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1639801167, now seen corresponding path program 1 times [2018-12-02 18:42:24,358 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 18:42:24,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:42:24,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:42:24,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 18:42:24,395 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 18:42:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 18:42:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 18:42:24,435 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 18:42:24,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:42:24 BoogieIcfgContainer [2018-12-02 18:42:24,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 18:42:24,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 18:42:24,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 18:42:24,450 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 18:42:24,450 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:42:24" (3/4) ... [2018-12-02 18:42:24,453 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 18:42:24,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 18:42:24,453 INFO L168 Benchmark]: Toolchain (without parser) took 462.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 955.1 MB in the beginning and 1.1 GB in the end (delta: -131.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 18:42:24,454 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 18:42:24,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 122.86 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 18:42:24,455 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.18 ms. Allocated memory is still 1.0 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 18:42:24,455 INFO L168 Benchmark]: Boogie Preprocessor took 10.59 ms. Allocated memory is still 1.0 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 18:42:24,456 INFO L168 Benchmark]: RCFGBuilder took 150.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -155.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-12-02 18:42:24,456 INFO L168 Benchmark]: TraceAbstraction took 159.75 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: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2018-12-02 18:42:24,456 INFO L168 Benchmark]: Witness Printer took 2.87 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-02 18:42:24,458 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 122.86 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 944.3 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 12.18 ms. Allocated memory is still 1.0 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.59 ms. Allocated memory is still 1.0 GB. Free memory is still 944.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 150.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.2 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -155.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 159.75 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: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.87 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 24]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 24, overapproximation of someBinaryArithmeticDOUBLEoperation at line 20. Possible FailurePath: [L4] double d = 0.0; VAL [\old(d)=1, d=0] [L13] int x = 2; [L15] COND TRUE __VERIFIER_nondet_int() [L16] x = 4 VAL [\old(d)=0, d=0, x=4] [L18] CALL f1() VAL [\old(d)=0, d=0] [L8] d = 1.0 VAL [\old(d)=0, d=1] [L18] RET f1() VAL [\old(d)=0, d=1, x=4] [L20] d += (x == 2) [L22] d += (x > 3) VAL [\old(d)=0, x=4] [L24] COND TRUE !(d == 2.0) VAL [\old(d)=0, x=4] [L24] __VERIFIER_error() VAL [\old(d)=0, x=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. UNSAFE Result, 0.1s 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=19occurred 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, 14 NumberOfCodeBlocks, 14 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 0.1.23-635dfa2 [2018-12-02 18:42:25,711 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 18:42:25,712 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 18:42:25,720 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 18:42:25,720 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 18:42:25,720 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 18:42:25,721 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 18:42:25,722 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 18:42:25,723 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 18:42:25,724 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 18:42:25,724 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 18:42:25,725 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 18:42:25,725 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 18:42:25,726 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 18:42:25,727 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 18:42:25,727 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 18:42:25,728 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 18:42:25,729 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 18:42:25,730 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 18:42:25,731 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 18:42:25,732 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 18:42:25,733 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 18:42:25,734 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 18:42:25,735 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 18:42:25,735 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 18:42:25,735 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 18:42:25,736 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 18:42:25,737 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 18:42:25,737 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 18:42:25,738 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 18:42:25,738 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 18:42:25,739 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 18:42:25,739 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 18:42:25,739 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 18:42:25,739 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 18:42:25,740 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 18:42:25,740 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-02 18:42:25,750 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 18:42:25,751 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 18:42:25,751 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 18:42:25,751 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 18:42:25,751 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 18:42:25,751 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 18:42:25,751 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 18:42:25,752 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 18:42:25,752 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 18:42:25,752 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 18:42:25,752 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 18:42:25,752 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 18:42:25,752 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 18:42:25,753 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 18:42:25,753 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 18:42:25,753 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 18:42:25,753 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 18:42:25,753 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 18:42:25,753 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 18:42:25,753 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 18:42:25,753 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 18:42:25,754 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 18:42:25,754 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 18:42:25,754 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 18:42:25,754 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 18:42:25,754 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 18:42:25,754 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 18:42:25,754 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 18:42:25,754 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 18:42:25,754 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 18:42:25,755 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 18:42:25,755 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-02 18:42:25,755 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 18:42:25,755 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 18:42:25,755 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 18:42:25,755 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_4dc1de54-456c-4383-bdb7-b57ff937c7b0/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2018-12-02 18:42:25,778 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 18:42:25,785 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 18:42:25,786 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 18:42:25,787 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 18:42:25,788 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 18:42:25,788 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-12-02 18:42:25,824 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/data/ef974f11f/5a6314c603514330b9378bab57870810/FLAG09dc7dc78 [2018-12-02 18:42:26,304 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 18:42:26,304 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-12-02 18:42:26,309 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/data/ef974f11f/5a6314c603514330b9378bab57870810/FLAG09dc7dc78 [2018-12-02 18:42:26,318 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/data/ef974f11f/5a6314c603514330b9378bab57870810 [2018-12-02 18:42:26,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 18:42:26,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 18:42:26,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 18:42:26,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 18:42:26,324 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 18:42:26,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:42:26" (1/1) ... [2018-12-02 18:42:26,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f078546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:26, skipping insertion in model container [2018-12-02 18:42:26,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:42:26" (1/1) ... [2018-12-02 18:42:26,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 18:42:26,343 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 18:42:26,447 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 18:42:26,451 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 18:42:26,460 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 18:42:26,471 INFO L195 MainTranslator]: Completed translation [2018-12-02 18:42:26,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:26 WrapperNode [2018-12-02 18:42:26,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 18:42:26,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 18:42:26,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 18:42:26,472 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 18:42:26,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:26" (1/1) ... [2018-12-02 18:42:26,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:26" (1/1) ... [2018-12-02 18:42:26,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 18:42:26,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 18:42:26,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 18:42:26,490 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 18:42:26,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:26" (1/1) ... [2018-12-02 18:42:26,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:26" (1/1) ... [2018-12-02 18:42:26,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:26" (1/1) ... [2018-12-02 18:42:26,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:26" (1/1) ... [2018-12-02 18:42:26,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:26" (1/1) ... [2018-12-02 18:42:26,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:26" (1/1) ... [2018-12-02 18:42:26,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:26" (1/1) ... [2018-12-02 18:42:26,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 18:42:26,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 18:42:26,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 18:42:26,507 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 18:42:26,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/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 [2018-12-02 18:42:26,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 18:42:26,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 18:42:26,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 18:42:26,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 18:42:26,571 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 18:42:26,571 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 18:42:26,571 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2018-12-02 18:42:26,571 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2018-12-02 18:42:27,440 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 18:42:27,440 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 18:42:27,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:42:27 BoogieIcfgContainer [2018-12-02 18:42:27,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 18:42:27,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 18:42:27,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 18:42:27,443 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 18:42:27,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:42:26" (1/3) ... [2018-12-02 18:42:27,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6dc29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:42:27, skipping insertion in model container [2018-12-02 18:42:27,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:42:26" (2/3) ... [2018-12-02 18:42:27,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6dc29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:42:27, skipping insertion in model container [2018-12-02 18:42:27,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:42:27" (3/3) ... [2018-12-02 18:42:27,446 INFO L112 eAbstractionObserver]: Analyzing ICFG float3_true-unreach-call_true-termination.i [2018-12-02 18:42:27,452 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 18:42:27,456 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 18:42:27,466 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 18:42:27,483 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 18:42:27,484 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 18:42:27,484 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 18:42:27,484 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 18:42:27,484 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 18:42:27,484 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 18:42:27,484 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 18:42:27,484 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 18:42:27,484 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 18:42:27,494 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-12-02 18:42:27,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 18:42:27,497 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:42:27,498 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:42:27,499 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:42:27,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:42:27,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1639801167, now seen corresponding path program 1 times [2018-12-02 18:42:27,504 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 18:42:27,505 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/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 [2018-12-02 18:42:27,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:42:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:42:27,656 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 18:42:27,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:42:27,723 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 18:42:27,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 18:42:27,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 18:42:27,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 18:42:27,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 18:42:27,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 18:42:27,744 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 6 states. [2018-12-02 18:42:29,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:42:29,445 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2018-12-02 18:42:29,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 18:42:29,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-12-02 18:42:29,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:42:29,453 INFO L225 Difference]: With dead ends: 30 [2018-12-02 18:42:29,453 INFO L226 Difference]: Without dead ends: 15 [2018-12-02 18:42:29,456 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-02 18:42:29,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-02 18:42:29,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-02 18:42:29,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-02 18:42:29,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-12-02 18:42:29,478 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2018-12-02 18:42:29,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:42:29,478 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-12-02 18:42:29,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 18:42:29,478 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-12-02 18:42:29,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 18:42:29,479 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 18:42:29,479 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 18:42:29,479 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 18:42:29,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 18:42:29,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1845819503, now seen corresponding path program 1 times [2018-12-02 18:42:29,480 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 18:42:29,480 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-02 18:42:29,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 18:42:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 18:42:29,615 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 18:42:29,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 18:42:29,652 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 18:42:29,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 18:42:29,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 18:42:29,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 18:42:29,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 18:42:29,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-02 18:42:29,662 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 6 states. [2018-12-02 18:42:30,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 18:42:30,637 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2018-12-02 18:42:30,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 18:42:30,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-12-02 18:42:30,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 18:42:30,637 INFO L225 Difference]: With dead ends: 15 [2018-12-02 18:42:30,637 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 18:42:30,638 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-02 18:42:30,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 18:42:30,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 18:42:30,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 18:42:30,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 18:42:30,639 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-12-02 18:42:30,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 18:42:30,639 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 18:42:30,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 18:42:30,639 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 18:42:30,639 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 18:42:30,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 18:42:30,675 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 18:42:30,675 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 18:42:30,675 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 18:42:30,675 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 18:42:30,675 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 18:42:30,675 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 18:42:30,675 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 18:42:30,675 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 25) the Hoare annotation is: true [2018-12-02 18:42:30,676 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 25) no Hoare annotation was computed. [2018-12-02 18:42:30,676 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-12-02 18:42:30,676 INFO L448 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-12-02 18:42:30,676 INFO L448 ceAbstractionStarter]: For program point L24-3(lines 11 25) no Hoare annotation was computed. [2018-12-02 18:42:30,676 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-12-02 18:42:30,676 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 16) no Hoare annotation was computed. [2018-12-02 18:42:30,676 INFO L444 ceAbstractionStarter]: At program point L15-2(lines 15 16) the Hoare annotation is: (or (= (bvadd main_~x~0 (_ bv4294967292 32)) (_ bv0 32)) (= (bvadd main_~x~0 (_ bv4294967294 32)) (_ bv0 32))) [2018-12-02 18:42:30,676 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2018-12-02 18:42:30,676 INFO L448 ceAbstractionStarter]: For program point f1FINAL(lines 6 9) no Hoare annotation was computed. [2018-12-02 18:42:30,676 INFO L448 ceAbstractionStarter]: For program point f1EXIT(lines 6 9) no Hoare annotation was computed. [2018-12-02 18:42:30,676 INFO L451 ceAbstractionStarter]: At program point f1ENTRY(lines 6 9) the Hoare annotation is: true [2018-12-02 18:42:30,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:42:30 BoogieIcfgContainer [2018-12-02 18:42:30,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 18:42:30,679 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 18:42:30,679 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 18:42:30,679 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 18:42:30,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:42:27" (3/4) ... [2018-12-02 18:42:30,681 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 18:42:30,685 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 18:42:30,686 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 18:42:30,686 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2018-12-02 18:42:30,688 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-02 18:42:30,688 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 18:42:30,711 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4dc1de54-456c-4383-bdb7-b57ff937c7b0/bin-2019/utaipan/witness.graphml [2018-12-02 18:42:30,711 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 18:42:30,711 INFO L168 Benchmark]: Toolchain (without parser) took 4390.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -72.8 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2018-12-02 18:42:30,712 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 18:42:30,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.72 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 18:42:30,713 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.31 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 18:42:30,713 INFO L168 Benchmark]: Boogie Preprocessor took 16.87 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 18:42:30,713 INFO L168 Benchmark]: RCFGBuilder took 934.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -147.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-02 18:42:30,714 INFO L168 Benchmark]: TraceAbstraction took 3237.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 11.5 GB. [2018-12-02 18:42:30,714 INFO L168 Benchmark]: Witness Printer took 32.39 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 18:42:30,716 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 149.72 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.31 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.87 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 934.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -147.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3237.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 11.5 GB. * Witness Printer took 32.39 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: 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 4 procedures, 19 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 8 SDslu, 64 SDs, 0 SdLazy, 29 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 16 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1326 SizeOfPredicates, 4 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...