./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_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i -s /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer --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 Automizer --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_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i -s /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer --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 Automizer --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 08:54:44,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:44,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:44,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:44,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:44,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:44,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:44,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:44,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:44,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:44,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:44,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:44,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:44,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:44,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:44,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:44,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:44,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:44,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:44,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:44,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:44,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:44,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:44,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:44,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:44,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:44,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:44,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:44,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:44,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:44,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:44,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:44,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:44,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:44,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:44,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:44,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:44,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:44,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:44,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:44,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:44,627 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:54:44,641 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:44,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:44,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:44,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:44,646 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:44,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:44,647 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:44,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:44,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:44,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:44,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:44,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:44,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:44,648 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:44,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:44,648 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:44,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:44,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:44,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:44,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:44,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:44,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:44,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:44,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:44,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:44,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:44,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:44,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:44,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer 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 -> Automizer 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 08:54:44,679 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:44,695 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:44,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:44,699 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:44,699 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:44,700 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-10-22 08:54:44,758 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/data/56f8418bf/c50c1c9a693841e29200e5c5877e60f3/FLAG08011e773 [2019-10-22 08:54:45,150 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:45,151 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-10-22 08:54:45,156 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/data/56f8418bf/c50c1c9a693841e29200e5c5877e60f3/FLAG08011e773 [2019-10-22 08:54:45,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/data/56f8418bf/c50c1c9a693841e29200e5c5877e60f3 [2019-10-22 08:54:45,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:45,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:45,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:45,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:45,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:45,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:45" (1/1) ... [2019-10-22 08:54:45,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1495bb2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:45, skipping insertion in model container [2019-10-22 08:54:45,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:45" (1/1) ... [2019-10-22 08:54:45,189 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:45,207 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:45,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:45,351 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:45,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:45,442 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:45,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:45 WrapperNode [2019-10-22 08:54:45,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:45,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:45,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:45,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:45,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:45" (1/1) ... [2019-10-22 08:54:45,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:45" (1/1) ... [2019-10-22 08:54:45,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:45,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:45,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:45,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:45,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:45" (1/1) ... [2019-10-22 08:54:45,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:45" (1/1) ... [2019-10-22 08:54:45,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:45" (1/1) ... [2019-10-22 08:54:45,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:45" (1/1) ... [2019-10-22 08:54:45,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:45" (1/1) ... [2019-10-22 08:54:45,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:45" (1/1) ... [2019-10-22 08:54:45,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:45" (1/1) ... [2019-10-22 08:54:45,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:45,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:45,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:45,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:45,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/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 08:54:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:45,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:45,714 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:45,714 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 08:54:45,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:45 BoogieIcfgContainer [2019-10-22 08:54:45,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:45,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:45,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:45,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:45,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:45" (1/3) ... [2019-10-22 08:54:45,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375ce3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:45, skipping insertion in model container [2019-10-22 08:54:45,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:45" (2/3) ... [2019-10-22 08:54:45,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375ce3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:45, skipping insertion in model container [2019-10-22 08:54:45,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:45" (3/3) ... [2019-10-22 08:54:45,726 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2019-10-22 08:54:45,736 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:45,743 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:54:45,753 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:54:45,777 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:45,777 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:45,778 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:45,778 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:45,778 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:45,778 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:45,778 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:45,778 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:45,794 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-10-22 08:54:45,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 08:54:45,801 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:45,802 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 08:54:45,804 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:45,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:45,810 INFO L82 PathProgramCache]: Analyzing trace with hash 29647107, now seen corresponding path program 1 times [2019-10-22 08:54:45,818 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:45,820 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121564394] [2019-10-22 08:54:45,820 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:45,821 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:45,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:45,928 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:45,929 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:54:45,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:45 BoogieIcfgContainer [2019-10-22 08:54:45,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:45,948 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:45,948 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:45,948 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:45,949 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:45" (3/4) ... [2019-10-22 08:54:45,951 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:54:45,951 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:45,953 INFO L168 Benchmark]: Toolchain (without parser) took 781.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:45,953 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:45,954 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -198.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:45,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.39 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 08:54:45,955 INFO L168 Benchmark]: Boogie Preprocessor took 20.77 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 08:54:45,955 INFO L168 Benchmark]: RCFGBuilder took 218.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:45,956 INFO L168 Benchmark]: TraceAbstraction took 231.16 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:45,958 INFO L168 Benchmark]: Witness Printer took 3.80 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 08:54:45,962 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 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -198.5 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.77 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 218.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 231.16 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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 08:54:48,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:48,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:48,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:48,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:48,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:48,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:48,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:48,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:48,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:48,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:48,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:48,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:48,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:48,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:48,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:48,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:48,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:48,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:48,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:48,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:48,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:48,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:48,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:48,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:48,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:48,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:48,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:48,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:48,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:48,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:48,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:48,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:48,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:48,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:48,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:48,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:48,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:48,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:48,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:48,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:48,224 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:54:48,240 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:48,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:48,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:48,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:48,243 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:48,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:48,244 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:48,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:48,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:48,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:48,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:48,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:48,245 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:54:48,245 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:54:48,245 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:48,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:48,245 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:48,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:48,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:48,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:48,246 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:48,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:48,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:48,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:48,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:48,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:48,249 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:54:48,249 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:54:48,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:48,249 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:54:48,249 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_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer 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 -> Automizer 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 08:54:48,295 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:48,308 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:48,313 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:48,315 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:48,316 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:48,317 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-10-22 08:54:48,377 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/data/3a74388dc/ed44ef414721448a85c57e036a209687/FLAGda5402fb0 [2019-10-22 08:54:48,781 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:48,782 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-10-22 08:54:48,789 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/data/3a74388dc/ed44ef414721448a85c57e036a209687/FLAGda5402fb0 [2019-10-22 08:54:49,169 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/data/3a74388dc/ed44ef414721448a85c57e036a209687 [2019-10-22 08:54:49,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:49,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:49,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:49,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:49,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:49,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:49" (1/1) ... [2019-10-22 08:54:49,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4adb7815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:49, skipping insertion in model container [2019-10-22 08:54:49,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:49" (1/1) ... [2019-10-22 08:54:49,191 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:49,205 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:49,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:49,392 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:49,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:49,428 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:49,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:49 WrapperNode [2019-10-22 08:54:49,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:49,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:49,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:49,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:49,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:49" (1/1) ... [2019-10-22 08:54:49,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:49" (1/1) ... [2019-10-22 08:54:49,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:49,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:49,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:49,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:49,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:49" (1/1) ... [2019-10-22 08:54:49,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:49" (1/1) ... [2019-10-22 08:54:49,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:49" (1/1) ... [2019-10-22 08:54:49,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:49" (1/1) ... [2019-10-22 08:54:49,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:49" (1/1) ... [2019-10-22 08:54:49,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:49" (1/1) ... [2019-10-22 08:54:49,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:49" (1/1) ... [2019-10-22 08:54:49,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:49,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:49,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:49,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:49,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/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 08:54:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:55,227 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:55,228 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 08:54:55,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:55 BoogieIcfgContainer [2019-10-22 08:54:55,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:55,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:55,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:55,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:55,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:49" (1/3) ... [2019-10-22 08:54:55,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736f5d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:55, skipping insertion in model container [2019-10-22 08:54:55,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:49" (2/3) ... [2019-10-22 08:54:55,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736f5d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:55, skipping insertion in model container [2019-10-22 08:54:55,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:55" (3/3) ... [2019-10-22 08:54:55,237 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2019-10-22 08:54:55,245 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:55,251 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:54:55,258 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:54:55,286 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:55,287 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:55,287 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:55,287 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:55,288 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:55,290 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:55,290 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:55,290 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:55,306 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-10-22 08:54:55,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 08:54:55,312 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:55,313 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 08:54:55,315 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:55,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:55,321 INFO L82 PathProgramCache]: Analyzing trace with hash 29647107, now seen corresponding path program 1 times [2019-10-22 08:54:55,330 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:54:55,331 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12988504] [2019-10-22 08:54:55,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/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 08:55:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:18,368 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-10-22 08:55:18,369 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:55:18,575 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:55:18,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:18 BoogieIcfgContainer [2019-10-22 08:55:18,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:18,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:18,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:18,594 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:18,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:55" (3/4) ... [2019-10-22 08:55:18,598 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:55:18,629 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_272adfa9-2951-4f0e-9b80-f5783b908e1d/bin/uautomizer/witness.graphml [2019-10-22 08:55:18,629 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:18,631 INFO L168 Benchmark]: Toolchain (without parser) took 29456.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:18,632 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:18,632 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.75 ms. Allocated memory is still 1.0 GB. Free memory was 945.6 MB in the beginning and 934.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:18,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 934.9 MB in the beginning and 1.2 GB in the end (delta: -236.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:18,633 INFO L168 Benchmark]: Boogie Preprocessor took 39.07 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:18,635 INFO L168 Benchmark]: RCFGBuilder took 5628.96 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: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:18,635 INFO L168 Benchmark]: TraceAbstraction took 23361.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:18,635 INFO L168 Benchmark]: Witness Printer took 35.95 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 08:55:18,638 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 253.75 ms. Allocated memory is still 1.0 GB. Free memory was 945.6 MB in the beginning and 934.9 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 132.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.2 MB). Free memory was 934.9 MB in the beginning and 1.2 GB in the end (delta: -236.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.07 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5628.96 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: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 23361.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Witness Printer took 35.95 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: 23.3s, 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, 10.5s 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...