./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/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 80e6cba3a638c96413a46f146860cf66cd7d52ab ................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/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 80e6cba3a638c96413a46f146860cf66cd7d52ab ................................................................................................................................................................................................................................................ 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 0.1.23-5842f4b [2018-11-18 16:32:58,447 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:32:58,449 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:32:58,457 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:32:58,458 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:32:58,458 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:32:58,459 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:32:58,461 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:32:58,462 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:32:58,463 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:32:58,464 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:32:58,464 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:32:58,465 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:32:58,466 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:32:58,467 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:32:58,468 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:32:58,468 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:32:58,470 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:32:58,472 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:32:58,474 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:32:58,475 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:32:58,476 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:32:58,479 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:32:58,479 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:32:58,479 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:32:58,480 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:32:58,481 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:32:58,482 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:32:58,483 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:32:58,483 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:32:58,484 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:32:58,484 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:32:58,484 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:32:58,485 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:32:58,486 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:32:58,487 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:32:58,487 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 16:32:58,499 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:32:58,499 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:32:58,500 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:32:58,500 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 16:32:58,501 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:32:58,501 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:32:58,501 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:32:58,501 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:32:58,502 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:32:58,502 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:32:58,502 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:32:58,503 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:32:58,503 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:32:58,503 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:32:58,503 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:32:58,503 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:32:58,503 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:32:58,504 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:32:58,504 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:32:58,504 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:32:58,504 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:32:58,504 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:32:58,504 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:32:58,504 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:32:58,505 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:32:58,505 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:32:58,505 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:32:58,505 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:32:58,505 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:32:58,505 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:32:58,505 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/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 -> 80e6cba3a638c96413a46f146860cf66cd7d52ab [2018-11-18 16:32:58,533 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:32:58,541 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:32:58,544 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:32:58,545 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:32:58,545 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:32:58,546 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i [2018-11-18 16:32:58,585 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/data/6e0a34492/9ec7b50e686d48f0aebe04e4e59ff72d/FLAG6ff4fda13 [2018-11-18 16:32:58,915 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:32:58,915 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/sv-benchmarks/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i [2018-11-18 16:32:58,920 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/data/6e0a34492/9ec7b50e686d48f0aebe04e4e59ff72d/FLAG6ff4fda13 [2018-11-18 16:32:59,350 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/data/6e0a34492/9ec7b50e686d48f0aebe04e4e59ff72d [2018-11-18 16:32:59,353 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:32:59,354 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 16:32:59,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:32:59,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:32:59,358 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:32:59,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:32:59" (1/1) ... [2018-11-18 16:32:59,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48449c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:32:59, skipping insertion in model container [2018-11-18 16:32:59,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:32:59" (1/1) ... [2018-11-18 16:32:59,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:32:59,385 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:32:59,523 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:32:59,526 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:32:59,539 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:32:59,547 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:32:59,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:32:59 WrapperNode [2018-11-18 16:32:59,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:32:59,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:32:59,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:32:59,548 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:32:59,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:32:59" (1/1) ... [2018-11-18 16:32:59,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:32:59" (1/1) ... [2018-11-18 16:32:59,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:32:59" (1/1) ... [2018-11-18 16:32:59,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:32:59" (1/1) ... [2018-11-18 16:32:59,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:32:59" (1/1) ... [2018-11-18 16:32:59,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:32:59" (1/1) ... [2018-11-18 16:32:59,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:32:59" (1/1) ... [2018-11-18 16:32:59,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:32:59,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:32:59,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:32:59,572 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:32:59,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:32:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/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 [2018-11-18 16:32:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:32:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:32:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-18 16:32:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-11-18 16:32:59,678 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:32:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 16:32:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 16:32:59,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 16:32:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-18 16:32:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-11-18 16:32:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:32:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:32:59,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:32:59,855 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:32:59,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:32:59 BoogieIcfgContainer [2018-11-18 16:32:59,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:32:59,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:32:59,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:32:59,859 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:32:59,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:32:59" (1/3) ... [2018-11-18 16:32:59,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e240107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:32:59, skipping insertion in model container [2018-11-18 16:32:59,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:32:59" (2/3) ... [2018-11-18 16:32:59,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e240107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:32:59, skipping insertion in model container [2018-11-18 16:32:59,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:32:59" (3/3) ... [2018-11-18 16:32:59,862 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_4_false-unreach-call_true-termination.i [2018-11-18 16:32:59,868 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:32:59,874 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:32:59,885 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:32:59,905 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:32:59,905 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:32:59,905 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:32:59,905 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:32:59,905 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:32:59,905 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:32:59,906 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:32:59,906 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:32:59,906 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:32:59,921 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-18 16:32:59,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 16:32:59,926 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:32:59,927 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:32:59,930 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:32:59,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:32:59,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-11-18 16:32:59,937 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:32:59,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:32:59,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:32:59,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:32:59,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:32:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:00,021 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 16:33:00,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:33:00 BoogieIcfgContainer [2018-11-18 16:33:00,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:33:00,039 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:33:00,039 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:33:00,040 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:33:00,040 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:32:59" (3/4) ... [2018-11-18 16:33:00,044 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:33:00,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:33:00,045 INFO L168 Benchmark]: Toolchain (without parser) took 691.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 958.5 MB in the beginning and 1.1 GB in the end (delta: -169.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:33:00,046 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:33:00,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 193.03 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:33:00,047 INFO L168 Benchmark]: Boogie Preprocessor took 23.54 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:33:00,048 INFO L168 Benchmark]: RCFGBuilder took 284.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:33:00,049 INFO L168 Benchmark]: TraceAbstraction took 182.85 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:33:00,050 INFO L168 Benchmark]: Witness Printer took 4.65 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. [2018-11-18 16:33:00,053 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 193.03 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.54 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 284.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 182.85 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.65 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(); [L19] CALL, EXPR f(IN) VAL [\old(x)=2] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=2, x=2] [L19] EXPR f(IN) VAL [f(IN)=1, IN=2] [L19] CALL, EXPR fp(IN) VAL [\old(x)=2] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=2, x=2] [L19] EXPR fp(IN) VAL [f(IN)=1, fp(IN)=0, IN=2] [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) VAL [IN=2] [L28] __VERIFIER_error() VAL [IN=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 16:33:01,728 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:33:01,729 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:33:01,738 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:33:01,738 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:33:01,739 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:33:01,740 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:33:01,741 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:33:01,742 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:33:01,743 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:33:01,744 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:33:01,744 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:33:01,745 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:33:01,746 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:33:01,747 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:33:01,748 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:33:01,748 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:33:01,754 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:33:01,755 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:33:01,757 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:33:01,757 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:33:01,758 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:33:01,760 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:33:01,760 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:33:01,760 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:33:01,761 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:33:01,762 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:33:01,762 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:33:01,763 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:33:01,764 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:33:01,764 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:33:01,764 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:33:01,765 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:33:01,765 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:33:01,766 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:33:01,766 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:33:01,766 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 16:33:01,783 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:33:01,783 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:33:01,784 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:33:01,784 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 16:33:01,784 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:33:01,784 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:33:01,784 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:33:01,785 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:33:01,785 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:33:01,789 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:33:01,789 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:33:01,789 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:33:01,789 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:33:01,790 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:33:01,790 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 16:33:01,790 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 16:33:01,790 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:33:01,790 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:33:01,791 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:33:01,791 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:33:01,791 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:33:01,791 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:33:01,791 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:33:01,791 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:33:01,791 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:33:01,792 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:33:01,792 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:33:01,792 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:33:01,792 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 16:33:01,792 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:33:01,792 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 16:33:01,792 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 16:33:01,792 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/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 -> 80e6cba3a638c96413a46f146860cf66cd7d52ab [2018-11-18 16:33:01,842 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:33:01,850 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:33:01,853 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:33:01,854 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:33:01,855 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:33:01,855 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i [2018-11-18 16:33:01,903 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/data/fa53f7fa6/52fd7f733e3d47d7a53af07856091f53/FLAG025263d23 [2018-11-18 16:33:02,255 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:33:02,255 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/sv-benchmarks/c/floats-cdfpl/newton_1_4_false-unreach-call_true-termination.i [2018-11-18 16:33:02,260 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/data/fa53f7fa6/52fd7f733e3d47d7a53af07856091f53/FLAG025263d23 [2018-11-18 16:33:02,271 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/data/fa53f7fa6/52fd7f733e3d47d7a53af07856091f53 [2018-11-18 16:33:02,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:33:02,275 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 16:33:02,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:33:02,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:33:02,279 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:33:02,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:33:02" (1/1) ... [2018-11-18 16:33:02,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4952199b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:02, skipping insertion in model container [2018-11-18 16:33:02,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:33:02" (1/1) ... [2018-11-18 16:33:02,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:33:02,305 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:33:02,454 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:33:02,459 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:33:02,476 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:33:02,488 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:33:02,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:02 WrapperNode [2018-11-18 16:33:02,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:33:02,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:33:02,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:33:02,489 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:33:02,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:02" (1/1) ... [2018-11-18 16:33:02,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:02" (1/1) ... [2018-11-18 16:33:02,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:02" (1/1) ... [2018-11-18 16:33:02,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:02" (1/1) ... [2018-11-18 16:33:02,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:02" (1/1) ... [2018-11-18 16:33:02,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:02" (1/1) ... [2018-11-18 16:33:02,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:02" (1/1) ... [2018-11-18 16:33:02,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:33:02,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:33:02,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:33:02,522 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:33:02,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/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 [2018-11-18 16:33:02,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:33:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:33:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-18 16:33:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-11-18 16:33:02,574 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:33:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 16:33:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 16:33:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 16:33:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-18 16:33:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-11-18 16:33:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:33:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:33:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:33:07,978 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:33:07,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:33:07 BoogieIcfgContainer [2018-11-18 16:33:07,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:33:07,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:33:07,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:33:07,983 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:33:07,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:33:02" (1/3) ... [2018-11-18 16:33:07,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f32f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:33:07, skipping insertion in model container [2018-11-18 16:33:07,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:33:02" (2/3) ... [2018-11-18 16:33:07,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f32f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:33:07, skipping insertion in model container [2018-11-18 16:33:07,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:33:07" (3/3) ... [2018-11-18 16:33:07,987 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_4_false-unreach-call_true-termination.i [2018-11-18 16:33:07,996 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:33:08,004 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:33:08,013 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:33:08,035 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:33:08,036 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:33:08,036 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:33:08,036 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:33:08,036 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:33:08,036 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:33:08,036 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:33:08,037 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:33:08,037 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:33:08,051 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-18 16:33:08,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 16:33:08,059 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:33:08,060 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:33:08,063 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:33:08,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:33:08,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-11-18 16:33:08,071 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:33:08,072 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/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 [2018-11-18 16:33:08,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:33:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:33:21,395 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 16:33:21,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:33:21 BoogieIcfgContainer [2018-11-18 16:33:21,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:33:21,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:33:21,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:33:21,420 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:33:21,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:33:07" (3/4) ... [2018-11-18 16:33:21,422 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 16:33:21,453 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4ff71830-2a01-413e-abd4-413635b5dac6/bin-2019/uautomizer/witness.graphml [2018-11-18 16:33:21,453 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:33:21,454 INFO L168 Benchmark]: Toolchain (without parser) took 19179.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -128.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:33:21,455 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:33:21,456 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.81 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:33:21,457 INFO L168 Benchmark]: Boogie Preprocessor took 32.31 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:33:21,457 INFO L168 Benchmark]: RCFGBuilder took 5457.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -177.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:33:21,458 INFO L168 Benchmark]: TraceAbstraction took 13438.45 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:33:21,458 INFO L168 Benchmark]: Witness Printer took 34.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:33:21,461 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 212.81 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.31 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5457.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -177.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13438.45 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. * Witness Printer took 34.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 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(); [L19] CALL, EXPR f(IN) VAL [\old(x)=-0.6982148289680481] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.6982148289680481, \result=-0.64288330078125, x=-0.6982148289680481] [L19] EXPR f(IN) VAL [f(IN)=-0.64288330078125, IN=-0.6982148289680481] [L19] CALL, EXPR fp(IN) VAL [\old(x)=-0.6982148289680481] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.6982148289680481, \result=0.7663114070892334, x=-0.6982148289680481] [L19] EXPR fp(IN) VAL [f(IN)=-0.64288330078125, fp(IN)=0.7663114070892334, IN=-0.6982148289680481] [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) VAL [IN=-0.6982148289680481, x=0.14071732759475708] [L28] __VERIFIER_error() VAL [IN=-0.6982148289680481, x=0.14071732759475708] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. UNSAFE Result, 13.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 8.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...