./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/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 ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b ...................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/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 ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b ................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 20:04:23,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:04:23,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:04:23,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:04:23,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:04:23,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:04:23,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:04:23,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:04:23,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:04:23,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:04:23,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:04:23,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:04:23,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:04:23,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:04:23,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:04:23,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:04:23,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:04:23,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:04:23,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:04:23,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:04:23,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:04:23,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:04:23,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:04:23,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:04:23,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:04:23,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:04:23,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:04:23,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:04:23,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:04:23,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:04:23,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:04:23,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:04:23,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:04:23,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:04:23,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:04:23,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:04:23,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:04:23,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:04:23,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:04:23,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:04:23,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:04:23,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:04:23,196 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:04:23,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:04:23,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:04:23,196 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:04:23,197 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:04:23,197 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:04:23,197 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:04:23,197 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:04:23,197 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:04:23,197 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:04:23,197 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:04:23,197 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:04:23,197 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:04:23,198 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:04:23,198 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:04:23,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:04:23,198 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:04:23,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:04:23,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:04:23,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:04:23,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:04:23,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:04:23,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:04:23,199 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:04:23,199 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:04:23,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:04:23,200 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:04:23,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:04:23,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:04:23,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:04:23,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:04:23,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:04:23,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:04:23,201 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:04:23,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:04:23,201 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:04:23,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:04:23,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:04:23,201 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:04:23,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:04:23,201 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/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 -> ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b [2019-12-07 20:04:23,305 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:04:23,315 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:04:23,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:04:23,319 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:04:23,319 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:04:23,320 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2019-12-07 20:04:23,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/data/58b5915c7/b28829a6701a4702bdf83fb84f29d6e0/FLAG9023b07bf [2019-12-07 20:04:23,728 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:04:23,728 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2019-12-07 20:04:23,733 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/data/58b5915c7/b28829a6701a4702bdf83fb84f29d6e0/FLAG9023b07bf [2019-12-07 20:04:23,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/data/58b5915c7/b28829a6701a4702bdf83fb84f29d6e0 [2019-12-07 20:04:23,745 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:04:23,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:04:23,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:04:23,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:04:23,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:04:23,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:04:23" (1/1) ... [2019-12-07 20:04:23,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dcd8b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:23, skipping insertion in model container [2019-12-07 20:04:23,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:04:23" (1/1) ... [2019-12-07 20:04:23,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:04:23,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:04:23,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:04:23,938 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:04:23,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:04:23,977 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:04:23,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:23 WrapperNode [2019-12-07 20:04:23,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:04:23,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:04:23,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:04:23,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:04:23,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:23" (1/1) ... [2019-12-07 20:04:23,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:23" (1/1) ... [2019-12-07 20:04:24,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:04:24,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:04:24,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:04:24,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:04:24,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:23" (1/1) ... [2019-12-07 20:04:24,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:23" (1/1) ... [2019-12-07 20:04:24,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:23" (1/1) ... [2019-12-07 20:04:24,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:23" (1/1) ... [2019-12-07 20:04:24,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:23" (1/1) ... [2019-12-07 20:04:24,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:23" (1/1) ... [2019-12-07 20:04:24,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:23" (1/1) ... [2019-12-07 20:04:24,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:04:24,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:04:24,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:04:24,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:04:24,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:04:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:04:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 20:04:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 20:04:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 20:04:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:04:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:04:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 20:04:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 20:04:24,365 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:04:24,365 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 20:04:24,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:04:24 BoogieIcfgContainer [2019-12-07 20:04:24,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:04:24,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:04:24,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:04:24,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:04:24,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:04:23" (1/3) ... [2019-12-07 20:04:24,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c408bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:04:24, skipping insertion in model container [2019-12-07 20:04:24,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:23" (2/3) ... [2019-12-07 20:04:24,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c408bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:04:24, skipping insertion in model container [2019-12-07 20:04:24,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:04:24" (3/3) ... [2019-12-07 20:04:24,371 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a.c [2019-12-07 20:04:24,377 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:04:24,382 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 20:04:24,389 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 20:04:24,404 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:04:24,404 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:04:24,404 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:04:24,404 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:04:24,405 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:04:24,405 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:04:24,405 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:04:24,405 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:04:24,414 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-12-07 20:04:24,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 20:04:24,418 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:04:24,418 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:04:24,419 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:04:24,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:04:24,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1740710163, now seen corresponding path program 1 times [2019-12-07 20:04:24,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:04:24,428 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293910732] [2019-12-07 20:04:24,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:04:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:04:24,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:04:24,509 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293910732] [2019-12-07 20:04:24,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:04:24,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 20:04:24,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493024654] [2019-12-07 20:04:24,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:04:24,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:04:24,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:04:24,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:04:24,524 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-12-07 20:04:24,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:04:24,536 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2019-12-07 20:04:24,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:04:24,537 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 20:04:24,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:04:24,544 INFO L225 Difference]: With dead ends: 43 [2019-12-07 20:04:24,544 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 20:04:24,546 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:04:24,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 20:04:24,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 20:04:24,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 20:04:24,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2019-12-07 20:04:24,568 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 10 [2019-12-07 20:04:24,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:04:24,568 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-12-07 20:04:24,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:04:24,568 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2019-12-07 20:04:24,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 20:04:24,568 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:04:24,569 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:04:24,569 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:04:24,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:04:24,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1299276117, now seen corresponding path program 1 times [2019-12-07 20:04:24,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:04:24,569 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189088923] [2019-12-07 20:04:24,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:04:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:04:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:04:24,702 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 20:04:24,702 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:04:24,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:04:24 BoogieIcfgContainer [2019-12-07 20:04:24,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:04:24,733 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:04:24,734 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:04:24,734 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:04:24,734 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:04:24" (3/4) ... [2019-12-07 20:04:24,737 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 20:04:24,737 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:04:24,738 INFO L168 Benchmark]: Toolchain (without parser) took 991.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -62.7 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:04:24,739 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:04:24,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -145.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:04:24,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:04:24,740 INFO L168 Benchmark]: Boogie Preprocessor took 23.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:04:24,740 INFO L168 Benchmark]: RCFGBuilder took 331.72 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: 44.1 MB). Peak memory consumption was 44.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:04:24,741 INFO L168 Benchmark]: TraceAbstraction took 366.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:04:24,741 INFO L168 Benchmark]: Witness Printer took 3.45 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. [2019-12-07 20:04:24,743 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 230.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -145.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 331.72 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: 44.1 MB). Peak memory consumption was 44.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 366.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.45 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: - UnprovableResult [Line: 137]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; [L132] double x = 0.0; [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L58] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L133] double res = __ieee754_log(x); [L19] __int32_t hx, lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L136] COND TRUE !isinf_double(res) [L137] __VERIFIER_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 20:04:26,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:04:26,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:04:26,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:04:26,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:04:26,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:04:26,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:04:26,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:04:26,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:04:26,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:04:26,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:04:26,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:04:26,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:04:26,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:04:26,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:04:26,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:04:26,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:04:26,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:04:26,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:04:26,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:04:26,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:04:26,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:04:26,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:04:26,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:04:26,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:04:26,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:04:26,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:04:26,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:04:26,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:04:26,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:04:26,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:04:26,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:04:26,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:04:26,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:04:26,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:04:26,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:04:26,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:04:26,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:04:26,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:04:26,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:04:26,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:04:26,085 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:04:26,095 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:04:26,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:04:26,095 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:04:26,095 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:04:26,096 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:04:26,096 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:04:26,096 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:04:26,096 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:04:26,096 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:04:26,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:04:26,097 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:04:26,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:04:26,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:04:26,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:04:26,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:04:26,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:04:26,097 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:04:26,097 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:04:26,098 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:04:26,098 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:04:26,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:04:26,098 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:04:26,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:04:26,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:04:26,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:04:26,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:04:26,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:04:26,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:04:26,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:04:26,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:04:26,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:04:26,099 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:04:26,099 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:04:26,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:04:26,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:04:26,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:04:26,100 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/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 -> ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b [2019-12-07 20:04:26,261 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:04:26,272 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:04:26,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:04:26,276 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:04:26,276 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:04:26,277 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2019-12-07 20:04:26,326 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/data/d52479b34/bdc058dd4b1a40f8871e0d7ed47f2c1d/FLAGaa7e6b6e9 [2019-12-07 20:04:26,670 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:04:26,671 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2019-12-07 20:04:26,676 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/data/d52479b34/bdc058dd4b1a40f8871e0d7ed47f2c1d/FLAGaa7e6b6e9 [2019-12-07 20:04:26,686 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/data/d52479b34/bdc058dd4b1a40f8871e0d7ed47f2c1d [2019-12-07 20:04:26,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:04:26,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:04:26,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:04:26,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:04:26,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:04:26,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:04:26" (1/1) ... [2019-12-07 20:04:26,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357db60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:26, skipping insertion in model container [2019-12-07 20:04:26,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:04:26" (1/1) ... [2019-12-07 20:04:26,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:04:26,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:04:26,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:04:26,867 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:04:26,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:04:26,948 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:04:26,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:26 WrapperNode [2019-12-07 20:04:26,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:04:26,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:04:26,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:04:26,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:04:26,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:26" (1/1) ... [2019-12-07 20:04:26,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:26" (1/1) ... [2019-12-07 20:04:26,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:04:26,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:04:26,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:04:26,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:04:26,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:26" (1/1) ... [2019-12-07 20:04:26,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:26" (1/1) ... [2019-12-07 20:04:26,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:26" (1/1) ... [2019-12-07 20:04:26,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:26" (1/1) ... [2019-12-07 20:04:27,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:26" (1/1) ... [2019-12-07 20:04:27,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:26" (1/1) ... [2019-12-07 20:04:27,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:26" (1/1) ... [2019-12-07 20:04:27,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:04:27,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:04:27,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:04:27,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:04:27,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:04:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 20:04:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 20:04:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:04:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 20:04:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:04:27,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:04:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 20:04:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 20:04:49,772 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:04:49,773 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 20:04:49,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:04:49 BoogieIcfgContainer [2019-12-07 20:04:49,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:04:49,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:04:49,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:04:49,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:04:49,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:04:26" (1/3) ... [2019-12-07 20:04:49,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751be2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:04:49, skipping insertion in model container [2019-12-07 20:04:49,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:04:26" (2/3) ... [2019-12-07 20:04:49,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751be2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:04:49, skipping insertion in model container [2019-12-07 20:04:49,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:04:49" (3/3) ... [2019-12-07 20:04:49,779 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a.c [2019-12-07 20:04:49,786 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:04:49,791 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 20:04:49,798 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 20:04:49,812 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:04:49,812 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:04:49,813 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:04:49,813 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:04:49,813 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:04:49,813 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:04:49,813 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:04:49,813 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:04:49,822 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-12-07 20:04:49,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 20:04:49,826 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:04:49,827 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:04:49,827 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:04:49,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:04:49,830 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2019-12-07 20:04:49,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:04:49,838 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315191425] [2019-12-07 20:04:49,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 20:04:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:04:50,663 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:04:50,668 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:04:50,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:04:50,681 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:04:50,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:04:50,685 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315191425] [2019-12-07 20:04:50,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:04:50,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:04:50,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786582664] [2019-12-07 20:04:50,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:04:50,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:04:50,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:04:50,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:04:50,701 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-12-07 20:04:50,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:04:50,718 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2019-12-07 20:04:50,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:04:50,719 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-12-07 20:04:50,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:04:50,729 INFO L225 Difference]: With dead ends: 62 [2019-12-07 20:04:50,730 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 20:04:50,733 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:04:50,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 20:04:50,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 20:04:50,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 20:04:50,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2019-12-07 20:04:50,756 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2019-12-07 20:04:50,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:04:50,757 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2019-12-07 20:04:50,757 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:04:50,757 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2019-12-07 20:04:50,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 20:04:50,757 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:04:50,757 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:04:50,958 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:04:50,959 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:04:50,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:04:50,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2019-12-07 20:04:50,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:04:50,964 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807684640] [2019-12-07 20:04:50,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/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 [2019-12-07 20:04:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:04:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:04:52,978 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:04:52,978 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:04:53,179 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:04:53,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:04:53 BoogieIcfgContainer [2019-12-07 20:04:53,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:04:53,244 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:04:53,244 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:04:53,244 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:04:53,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:04:49" (3/4) ... [2019-12-07 20:04:53,246 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:04:53,292 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6926f723-6bcc-4cd2-b8f6-6b4889c10e97/bin/utaipan/witness.graphml [2019-12-07 20:04:53,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:04:53,293 INFO L168 Benchmark]: Toolchain (without parser) took 26604.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -64.0 MB). Peak memory consumption was 70.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:04:53,293 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:04:53,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:04:53,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.01 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. [2019-12-07 20:04:53,294 INFO L168 Benchmark]: Boogie Preprocessor took 28.17 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. [2019-12-07 20:04:53,295 INFO L168 Benchmark]: RCFGBuilder took 22760.83 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: 42.2 MB). Peak memory consumption was 42.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:04:53,295 INFO L168 Benchmark]: TraceAbstraction took 3469.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.0 MB). Peak memory consumption was 58.0 MB. Max. memory is 11.5 GB. [2019-12-07 20:04:53,295 INFO L168 Benchmark]: Witness Printer took 47.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:04:53,297 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 259.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -171.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.01 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. * Boogie Preprocessor took 28.17 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. * RCFGBuilder took 22760.83 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: 42.2 MB). Peak memory consumption was 42.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3469.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.0 MB). Peak memory consumption was 58.0 MB. Max. memory is 11.5 GB. * Witness Printer took 47.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 137]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L132] double x = 0.0; [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L58] COND TRUE hx < 0x00100000 VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] return -two54_log / zero; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L133] double res = __ieee754_log(x); [L19] __int32_t hx, lx; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L136] COND TRUE !isinf_double(res) [L137] __VERIFIER_error() VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 35 ConjunctsInSsa, 1 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 incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...