./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/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/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/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 0.1.25-f470102 [2019-12-07 19:11:46,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:11:46,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:11:46,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:11:46,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:11:46,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:11:46,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:11:46,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:11:46,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:11:46,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:11:46,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:11:46,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:11:46,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:11:46,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:11:46,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:11:46,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:11:46,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:11:46,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:11:46,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:11:46,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:11:46,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:11:46,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:11:46,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:11:46,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:11:46,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:11:46,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:11:46,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:11:46,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:11:46,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:11:46,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:11:46,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:11:46,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:11:46,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:11:46,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:11:46,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:11:46,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:11:46,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:11:46,596 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:11:46,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:11:46,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:11:46,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:11:46,598 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 19:11:46,608 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:11:46,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:11:46,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:11:46,609 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:11:46,609 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:11:46,609 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:11:46,610 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 19:11:46,610 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:11:46,610 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:11:46,610 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 19:11:46,610 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 19:11:46,610 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:11:46,610 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 19:11:46,611 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 19:11:46,611 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 19:11:46,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:11:46,611 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:11:46,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 19:11:46,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:11:46,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:11:46,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:11:46,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:11:46,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:11:46,612 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:11:46,612 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:11:46,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:11:46,612 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:11:46,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:11:46,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:11:46,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:11:46,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:11:46,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:11:46,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:11:46,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:11:46,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:11:46,613 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 19:11:46,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 19:11:46,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:11:46,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:11:46,614 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:11:46,614 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_ec183f09-ae80-4158-9f7f-32d9d316e4eb/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 [2019-12-07 19:11:46,718 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:11:46,728 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:11:46,731 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:11:46,732 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:11:46,733 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:11:46,733 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-12-07 19:11:46,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/data/933a8a891/a94775521d4f4645b3db46426f1e409a/FLAG36b575ae9 [2019-12-07 19:11:47,245 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:11:47,246 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-12-07 19:11:47,249 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/data/933a8a891/a94775521d4f4645b3db46426f1e409a/FLAG36b575ae9 [2019-12-07 19:11:47,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/data/933a8a891/a94775521d4f4645b3db46426f1e409a [2019-12-07 19:11:47,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:11:47,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:11:47,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:11:47,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:11:47,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:11:47,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:11:47" (1/1) ... [2019-12-07 19:11:47,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc16ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:47, skipping insertion in model container [2019-12-07 19:11:47,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:11:47" (1/1) ... [2019-12-07 19:11:47,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:11:47,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:11:47,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:11:47,894 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:11:47,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:11:47,952 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:11:47,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:47 WrapperNode [2019-12-07 19:11:47,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:11:47,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:11:47,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:11:47,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:11:47,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:47" (1/1) ... [2019-12-07 19:11:47,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:47" (1/1) ... [2019-12-07 19:11:47,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:11:47,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:11:47,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:11:47,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:11:47,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:47" (1/1) ... [2019-12-07 19:11:47,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:47" (1/1) ... [2019-12-07 19:11:47,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:47" (1/1) ... [2019-12-07 19:11:47,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:47" (1/1) ... [2019-12-07 19:11:47,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:47" (1/1) ... [2019-12-07 19:11:47,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:47" (1/1) ... [2019-12-07 19:11:47,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:47" (1/1) ... [2019-12-07 19:11:47,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:11:47,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:11:47,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:11:47,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:11:47,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/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 19:11:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:11:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:11:48,134 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:11:48,134 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 19:11:48,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:11:48 BoogieIcfgContainer [2019-12-07 19:11:48,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:11:48,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:11:48,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:11:48,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:11:48,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:11:47" (1/3) ... [2019-12-07 19:11:48,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535068ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:11:48, skipping insertion in model container [2019-12-07 19:11:48,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:47" (2/3) ... [2019-12-07 19:11:48,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535068ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:11:48, skipping insertion in model container [2019-12-07 19:11:48,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:11:48" (3/3) ... [2019-12-07 19:11:48,140 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2019-12-07 19:11:48,146 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:11:48,150 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 19:11:48,157 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 19:11:48,171 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:11:48,171 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:11:48,171 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:11:48,171 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:11:48,171 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:11:48,171 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:11:48,171 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:11:48,171 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:11:48,180 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-12-07 19:11:48,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 19:11:48,183 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:11:48,183 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 19:11:48,184 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:11:48,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:11:48,187 INFO L82 PathProgramCache]: Analyzing trace with hash 48307, now seen corresponding path program 1 times [2019-12-07 19:11:48,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:11:48,193 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140984622] [2019-12-07 19:11:48,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:11:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:11:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:11:48,264 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 19:11:48,264 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 19:11:48,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:11:48 BoogieIcfgContainer [2019-12-07 19:11:48,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:11:48,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:11:48,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:11:48,275 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:11:48,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:11:48" (3/4) ... [2019-12-07 19:11:48,277 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 19:11:48,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:11:48,279 INFO L168 Benchmark]: Toolchain (without parser) took 521.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -136.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:11:48,279 INFO L168 Benchmark]: CDTParser took 0.16 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 19:11:48,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:11:48,280 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.27 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 19:11:48,280 INFO L168 Benchmark]: Boogie Preprocessor took 15.51 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 19:11:48,281 INFO L168 Benchmark]: RCFGBuilder took 137.28 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 19:11:48,281 INFO L168 Benchmark]: TraceAbstraction took 138.46 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 19:11:48,282 INFO L168 Benchmark]: Witness Printer took 2.84 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 19:11:48,284 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 195.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.27 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. * Boogie Preprocessor took 15.51 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 137.28 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 138.46 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.84 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. * 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 6. 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, 6 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.0s, 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=6occurred 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, 3 NumberOfCodeBlocks, 3 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 0.1.25-f470102 [2019-12-07 19:11:49,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:11:49,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:11:49,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:11:49,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:11:49,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:11:49,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:11:49,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:11:49,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:11:49,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:11:49,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:11:49,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:11:49,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:11:49,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:11:49,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:11:49,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:11:49,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:11:49,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:11:49,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:11:49,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:11:49,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:11:49,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:11:49,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:11:49,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:11:49,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:11:49,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:11:49,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:11:49,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:11:49,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:11:49,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:11:49,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:11:49,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:11:49,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:11:49,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:11:49,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:11:49,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:11:49,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:11:49,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:11:49,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:11:49,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:11:49,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:11:49,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 19:11:49,667 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:11:49,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:11:49,668 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:11:49,668 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:11:49,669 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:11:49,669 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:11:49,669 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:11:49,669 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:11:49,669 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:11:49,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:11:49,670 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:11:49,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:11:49,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:11:49,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:11:49,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:11:49,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:11:49,670 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:11:49,671 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 19:11:49,671 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 19:11:49,671 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:11:49,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:11:49,671 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:11:49,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:11:49,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:11:49,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 19:11:49,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:11:49,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:11:49,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:11:49,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:11:49,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:11:49,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:11:49,672 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 19:11:49,673 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 19:11:49,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:11:49,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:11:49,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:11:49,673 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_ec183f09-ae80-4158-9f7f-32d9d316e4eb/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 [2019-12-07 19:11:49,832 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:11:49,841 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:11:49,843 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:11:49,844 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:11:49,845 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:11:49,845 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-12-07 19:11:49,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/data/cad1027aa/e1f1aac19dac4904babceb11e689c24e/FLAG5fef71655 [2019-12-07 19:11:50,297 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:11:50,298 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-12-07 19:11:50,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/data/cad1027aa/e1f1aac19dac4904babceb11e689c24e/FLAG5fef71655 [2019-12-07 19:11:50,676 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/data/cad1027aa/e1f1aac19dac4904babceb11e689c24e [2019-12-07 19:11:50,682 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:11:50,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:11:50,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:11:50,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:11:50,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:11:50,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:11:50" (1/1) ... [2019-12-07 19:11:50,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b973ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:50, skipping insertion in model container [2019-12-07 19:11:50,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:11:50" (1/1) ... [2019-12-07 19:11:50,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:11:50,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:11:50,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:11:50,821 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:11:50,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:11:50,843 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:11:50,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:50 WrapperNode [2019-12-07 19:11:50,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:11:50,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:11:50,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:11:50,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:11:50,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:50" (1/1) ... [2019-12-07 19:11:50,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:50" (1/1) ... [2019-12-07 19:11:50,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:11:50,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:11:50,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:11:50,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:11:50,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:50" (1/1) ... [2019-12-07 19:11:50,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:50" (1/1) ... [2019-12-07 19:11:50,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:50" (1/1) ... [2019-12-07 19:11:50,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:50" (1/1) ... [2019-12-07 19:11:50,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:50" (1/1) ... [2019-12-07 19:11:50,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:50" (1/1) ... [2019-12-07 19:11:50,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:50" (1/1) ... [2019-12-07 19:11:50,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:11:50,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:11:50,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:11:50,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:11:50,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/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 19:11:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:11:50,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:11:56,987 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:11:56,987 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 19:11:56,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:11:56 BoogieIcfgContainer [2019-12-07 19:11:56,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:11:56,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:11:56,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:11:56,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:11:56,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:11:50" (1/3) ... [2019-12-07 19:11:56,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b7389f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:11:56, skipping insertion in model container [2019-12-07 19:11:56,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:11:50" (2/3) ... [2019-12-07 19:11:56,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b7389f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:11:56, skipping insertion in model container [2019-12-07 19:11:56,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:11:56" (3/3) ... [2019-12-07 19:11:56,994 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2019-12-07 19:11:57,002 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:11:57,007 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 19:11:57,015 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 19:11:57,030 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:11:57,030 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:11:57,030 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:11:57,030 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:11:57,031 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:11:57,031 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:11:57,031 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:11:57,031 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:11:57,040 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-12-07 19:11:57,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 19:11:57,043 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:11:57,044 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 19:11:57,044 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:11:57,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:11:57,048 INFO L82 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2019-12-07 19:11:57,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:11:57,055 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981971531] [2019-12-07 19:11:57,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/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 19:13:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:17:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:17:29,012 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 19:17:29,012 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 19:17:29,213 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 19:17:29,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:17:29 BoogieIcfgContainer [2019-12-07 19:17:29,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:17:29,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:17:29,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:17:29,242 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:17:29,243 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:11:56" (3/4) ... [2019-12-07 19:17:29,245 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 19:17:29,276 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ec183f09-ae80-4158-9f7f-32d9d316e4eb/bin/utaipan/witness.graphml [2019-12-07 19:17:29,277 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:17:29,278 INFO L168 Benchmark]: Toolchain (without parser) took 338594.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -96.2 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2019-12-07 19:17:29,278 INFO L168 Benchmark]: CDTParser took 0.13 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 19:17:29,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.08 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. [2019-12-07 19:17:29,279 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.33 ms. Allocated memory is still 1.0 GB. Free memory was 940.3 MB in the beginning and 934.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 19:17:29,280 INFO L168 Benchmark]: Boogie Preprocessor took 43.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:17:29,280 INFO L168 Benchmark]: RCFGBuilder took 6076.58 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:17:29,280 INFO L168 Benchmark]: TraceAbstraction took 332252.68 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:17:29,281 INFO L168 Benchmark]: Witness Printer took 35.22 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 19:17:29,283 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 158.08 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 23.33 ms. Allocated memory is still 1.0 GB. Free memory was 940.3 MB in the beginning and 934.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -151.2 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 6076.58 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 332252.68 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Witness Printer took 35.22 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: - 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, 11 locations, 1 error locations. Result: UNSAFE, OverallTime: 332.1s, 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=11occurred 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, 100.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 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...