./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/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 681fb6d62502cf59ef295360f3a46fc8f0826056 ................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/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 681fb6d62502cf59ef295360f3a46fc8f0826056 .................................................................................................................................................................................................................................. 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 0.1.24-cad4683 [2019-10-22 11:23:45,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:45,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:45,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:45,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:45,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:45,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:45,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:45,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:45,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:45,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:45,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:45,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:45,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:45,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:45,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:45,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:45,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:45,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:45,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:45,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:45,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:45,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:45,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:45,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:45,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:45,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:45,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:45,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:45,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:45,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:45,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:45,957 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:45,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:45,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:45,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:45,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:45,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:45,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:45,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:45,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:45,962 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:23:45,975 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:45,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:45,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:45,985 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:45,985 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:45,985 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:45,985 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:23:45,985 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:45,985 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:45,986 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:23:45,986 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:23:45,986 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:45,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:45,987 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:45,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:23:45,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:45,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:45,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:45,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:45,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:45,989 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:45,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:45,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:45,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:45,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:45,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:45,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:45,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:45,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:45,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:45,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:45,991 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:23:45,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:23:45,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:45,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:45,992 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/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 -> 681fb6d62502cf59ef295360f3a46fc8f0826056 [2019-10-22 11:23:46,026 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:46,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:46,037 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:46,038 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:46,038 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:46,038 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-10-22 11:23:46,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/data/ac8067faa/a5b8c686814948489aca9c5568d57bdb/FLAGc75911379 [2019-10-22 11:23:46,438 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:46,439 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-10-22 11:23:46,443 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/data/ac8067faa/a5b8c686814948489aca9c5568d57bdb/FLAGc75911379 [2019-10-22 11:23:46,858 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/data/ac8067faa/a5b8c686814948489aca9c5568d57bdb [2019-10-22 11:23:46,861 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:46,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:46,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:46,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:46,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:46,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:46" (1/1) ... [2019-10-22 11:23:46,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f2d2514 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:46, skipping insertion in model container [2019-10-22 11:23:46,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:46" (1/1) ... [2019-10-22 11:23:46,877 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:46,891 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:47,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:47,074 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:47,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:47,176 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:47,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:47 WrapperNode [2019-10-22 11:23:47,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:47,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:47,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:47,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:47,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:47" (1/1) ... [2019-10-22 11:23:47,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:47" (1/1) ... [2019-10-22 11:23:47,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:47,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:47,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:47,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:47,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:47" (1/1) ... [2019-10-22 11:23:47,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:47" (1/1) ... [2019-10-22 11:23:47,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:47" (1/1) ... [2019-10-22 11:23:47,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:47" (1/1) ... [2019-10-22 11:23:47,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:47" (1/1) ... [2019-10-22 11:23:47,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:47" (1/1) ... [2019-10-22 11:23:47,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:47" (1/1) ... [2019-10-22 11:23:47,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:47,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:47,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:47,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:47,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:47,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:47,367 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:47,367 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 11:23:47,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:47 BoogieIcfgContainer [2019-10-22 11:23:47,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:47,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:47,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:47,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:47,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:46" (1/3) ... [2019-10-22 11:23:47,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1487e0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:47, skipping insertion in model container [2019-10-22 11:23:47,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:47" (2/3) ... [2019-10-22 11:23:47,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1487e0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:47, skipping insertion in model container [2019-10-22 11:23:47,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:47" (3/3) ... [2019-10-22 11:23:47,375 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2019-10-22 11:23:47,383 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:47,390 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:23:47,400 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:23:47,422 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:47,422 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:23:47,422 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:47,422 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:47,423 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:47,423 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:47,423 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:47,423 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:47,441 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-10-22 11:23:47,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 11:23:47,446 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:47,447 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 11:23:47,449 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:47,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:47,456 INFO L82 PathProgramCache]: Analyzing trace with hash 29647107, now seen corresponding path program 1 times [2019-10-22 11:23:47,465 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:47,465 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720343805] [2019-10-22 11:23:47,465 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:47,466 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:47,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:23:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:23:47,586 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:23:47,587 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:23:47,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:23:47 BoogieIcfgContainer [2019-10-22 11:23:47,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:23:47,605 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:23:47,605 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:23:47,605 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:23:47,606 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:47" (3/4) ... [2019-10-22 11:23:47,609 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:23:47,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:23:47,611 INFO L168 Benchmark]: Toolchain (without parser) took 748.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 949.9 MB in the beginning and 1.2 GB in the end (delta: -204.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:47,612 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:47,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 949.9 MB in the beginning and 1.2 GB in the end (delta: -235.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:47,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:47,613 INFO L168 Benchmark]: Boogie Preprocessor took 20.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:47,613 INFO L168 Benchmark]: RCFGBuilder took 136.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:47,617 INFO L168 Benchmark]: TraceAbstraction took 235.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:47,617 INFO L168 Benchmark]: Witness Printer took 4.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:47,620 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 314.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 949.9 MB in the beginning and 1.2 GB in the end (delta: -235.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 136.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 235.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 19. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:23:49,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:49,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:49,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:49,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:49,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:49,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:49,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:49,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:49,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:49,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:49,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:49,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:49,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:49,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:49,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:49,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:49,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:49,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:49,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:49,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:49,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:49,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:49,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:49,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:49,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:49,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:49,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:49,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:49,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:49,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:49,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:49,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:49,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:49,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:49,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:49,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:49,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:49,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:49,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:49,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:49,677 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:23:49,690 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:49,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:49,691 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:49,691 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:49,691 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:49,701 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:49,701 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:49,701 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:49,702 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:49,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:49,706 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:49,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:49,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:49,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:49,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:49,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:49,707 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:23:49,707 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:23:49,707 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:49,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:49,707 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:23:49,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:49,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:49,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:49,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:49,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:49,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:49,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:49,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:49,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:49,709 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:23:49,709 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:23:49,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:49,709 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:49,709 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/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 -> 681fb6d62502cf59ef295360f3a46fc8f0826056 [2019-10-22 11:23:49,747 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:49,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:49,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:49,761 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:49,761 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:49,762 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-10-22 11:23:49,810 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/data/129a72adb/4e5b2b00435748c0b24829b704ca7e1a/FLAGf4604a0ba [2019-10-22 11:23:50,226 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:50,227 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-10-22 11:23:50,233 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/data/129a72adb/4e5b2b00435748c0b24829b704ca7e1a/FLAGf4604a0ba [2019-10-22 11:23:50,250 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/data/129a72adb/4e5b2b00435748c0b24829b704ca7e1a [2019-10-22 11:23:50,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:50,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:50,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:50,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:50,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:50,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@558317ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50, skipping insertion in model container [2019-10-22 11:23:50,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,274 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:50,290 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:50,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:50,482 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:50,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:50,522 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:50,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50 WrapperNode [2019-10-22 11:23:50,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:50,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:50,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:50,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:50,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:50,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:50,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:50,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:50,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:50,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:50,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:50,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:50,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:56,204 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:56,204 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 11:23:56,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:56 BoogieIcfgContainer [2019-10-22 11:23:56,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:56,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:56,207 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:56,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:56,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:50" (1/3) ... [2019-10-22 11:23:56,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c5c947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:56, skipping insertion in model container [2019-10-22 11:23:56,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (2/3) ... [2019-10-22 11:23:56,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c5c947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:56, skipping insertion in model container [2019-10-22 11:23:56,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:56" (3/3) ... [2019-10-22 11:23:56,213 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2019-10-22 11:23:56,224 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:56,231 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:23:56,241 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:23:56,269 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:56,270 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:23:56,270 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:56,270 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:56,270 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:56,270 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:56,270 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:56,271 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:56,283 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-10-22 11:23:56,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 11:23:56,288 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:56,289 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 11:23:56,290 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:56,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:56,295 INFO L82 PathProgramCache]: Analyzing trace with hash 29647107, now seen corresponding path program 1 times [2019-10-22 11:23:56,304 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:23:56,305 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691753570] [2019-10-22 11:23:56,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-10-22 11:24:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:24:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:24:20,445 INFO L168 tionRefinementEngine]: Strategy WALRUS found a feasible trace [2019-10-22 11:24:20,446 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:24:20,647 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:24:20,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:24:20 BoogieIcfgContainer [2019-10-22 11:24:20,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:24:20,666 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:24:20,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:24:20,666 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:24:20,667 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:56" (3/4) ... [2019-10-22 11:24:20,669 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:24:20,708 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cf95034f-cf6b-4dd0-a586-b280ff027acc/bin/utaipan/witness.graphml [2019-10-22 11:24:20,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:24:20,710 INFO L168 Benchmark]: Toolchain (without parser) took 30455.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:20,711 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:20,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.89 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:20,713 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -199.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:20,713 INFO L168 Benchmark]: Boogie Preprocessor took 32.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:20,714 INFO L168 Benchmark]: RCFGBuilder took 5554.20 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: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:20,714 INFO L168 Benchmark]: TraceAbstraction took 24458.77 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:20,715 INFO L168 Benchmark]: Witness Printer took 42.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:20,717 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.89 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 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 94.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -199.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5554.20 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: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24458.77 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * Witness Printer took 42.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 24.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 10.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...