./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_5_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_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/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 e4382b57b29a0b5934fceb56c089bfd5b9abbe48 ...................................................................................................................................................................................................................................................... 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_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/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 e4382b57b29a0b5934fceb56c089bfd5b9abbe48 ........................................................................................................................................................................................................................................ 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 12:58:39,540 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:58:39,541 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:58:39,547 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:58:39,547 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:58:39,548 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:58:39,548 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:58:39,550 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:58:39,551 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:58:39,551 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:58:39,552 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:58:39,552 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:58:39,553 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:58:39,553 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:58:39,555 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:58:39,555 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:58:39,556 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:58:39,557 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:58:39,559 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:58:39,560 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:58:39,560 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:58:39,561 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:58:39,563 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:58:39,563 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:58:39,563 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:58:39,564 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:58:39,564 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:58:39,565 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:58:39,565 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:58:39,566 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:58:39,567 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:58:39,567 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:58:39,567 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:58:39,567 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:58:39,568 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:58:39,568 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:58:39,569 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 12:58:39,575 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:58:39,576 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:58:39,576 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:58:39,576 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 12:58:39,577 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:58:39,577 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:58:39,577 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:58:39,577 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:58:39,577 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:58:39,577 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:58:39,577 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:58:39,578 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:58:39,578 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:58:39,578 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:58:39,578 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:58:39,578 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:58:39,578 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:58:39,578 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:58:39,578 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:58:39,578 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:58:39,579 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:58:39,579 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:58:39,579 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:58:39,579 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:58:39,579 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:58:39,579 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:58:39,579 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:58:39,579 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:58:39,579 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:58:39,580 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:58:39,580 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_8982cb9a-597b-42e8-a29d-0c43edc43b16/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 -> e4382b57b29a0b5934fceb56c089bfd5b9abbe48 [2018-11-18 12:58:39,602 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:58:39,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:58:39,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:58:39,613 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:58:39,613 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:58:39,614 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2018-11-18 12:58:39,656 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/data/b7543628f/d0f83fa1b7a94a699e2ecc89fb27fc26/FLAG4807ae137 [2018-11-18 12:58:40,043 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:58:40,044 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/sv-benchmarks/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2018-11-18 12:58:40,047 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/data/b7543628f/d0f83fa1b7a94a699e2ecc89fb27fc26/FLAG4807ae137 [2018-11-18 12:58:40,059 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/data/b7543628f/d0f83fa1b7a94a699e2ecc89fb27fc26 [2018-11-18 12:58:40,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:58:40,061 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:58:40,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:58:40,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:58:40,064 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:58:40,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:58:40" (1/1) ... [2018-11-18 12:58:40,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b7a4c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:40, skipping insertion in model container [2018-11-18 12:58:40,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:58:40" (1/1) ... [2018-11-18 12:58:40,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:58:40,084 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:58:40,189 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:58:40,191 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:58:40,203 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:58:40,211 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:58:40,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:40 WrapperNode [2018-11-18 12:58:40,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:58:40,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:58:40,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:58:40,212 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:58:40,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:40" (1/1) ... [2018-11-18 12:58:40,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:40" (1/1) ... [2018-11-18 12:58:40,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:40" (1/1) ... [2018-11-18 12:58:40,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:40" (1/1) ... [2018-11-18 12:58:40,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:40" (1/1) ... [2018-11-18 12:58:40,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:40" (1/1) ... [2018-11-18 12:58:40,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:40" (1/1) ... [2018-11-18 12:58:40,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:58:40,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:58:40,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:58:40,229 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:58:40,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/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 12:58:40,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:58:40,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:58:40,303 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-18 12:58:40,303 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-11-18 12:58:40,303 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:58:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:58:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 12:58:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 12:58:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-18 12:58:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-11-18 12:58:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:58:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:58:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:58:40,393 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:58:40,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:58:40 BoogieIcfgContainer [2018-11-18 12:58:40,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:58:40,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:58:40,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:58:40,396 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:58:40,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:58:40" (1/3) ... [2018-11-18 12:58:40,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322d32d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:58:40, skipping insertion in model container [2018-11-18 12:58:40,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:40" (2/3) ... [2018-11-18 12:58:40,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322d32d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:58:40, skipping insertion in model container [2018-11-18 12:58:40,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:58:40" (3/3) ... [2018-11-18 12:58:40,398 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_5_false-unreach-call_true-termination.i [2018-11-18 12:58:40,405 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:58:40,411 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:58:40,421 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:58:40,443 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:58:40,444 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:58:40,444 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:58:40,444 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:58:40,444 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:58:40,444 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:58:40,445 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:58:40,445 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:58:40,445 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:58:40,459 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-18 12:58:40,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 12:58:40,464 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:58:40,465 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:58:40,466 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:58:40,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:58:40,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-11-18 12:58:40,473 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:58:40,473 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:58:40,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:58:40,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:58:40,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:58:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:58:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:58:40,551 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:58:40,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:58:40 BoogieIcfgContainer [2018-11-18 12:58:40,564 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:58:40,564 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:58:40,564 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:58:40,564 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:58:40,565 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:58:40" (3/4) ... [2018-11-18 12:58:40,567 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:58:40,567 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:58:40,567 INFO L168 Benchmark]: Toolchain (without parser) took 506.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -143.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:58:40,569 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:58:40,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.38 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:58:40,569 INFO L168 Benchmark]: Boogie Preprocessor took 17.49 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:58:40,570 INFO L168 Benchmark]: RCFGBuilder took 164.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -170.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:58:40,570 INFO L168 Benchmark]: TraceAbstraction took 169.90 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:58:40,571 INFO L168 Benchmark]: Witness Printer took 2.88 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 12:58:40,573 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 149.38 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.49 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 164.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -170.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 169.90 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.88 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 12:58:41,938 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:58:41,939 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:58:41,946 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:58:41,946 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:58:41,947 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:58:41,948 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:58:41,949 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:58:41,950 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:58:41,950 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:58:41,951 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:58:41,951 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:58:41,952 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:58:41,953 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:58:41,953 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:58:41,954 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:58:41,955 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:58:41,956 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:58:41,957 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:58:41,959 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:58:41,960 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:58:41,960 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:58:41,962 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:58:41,963 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:58:41,963 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:58:41,963 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:58:41,964 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:58:41,965 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:58:41,965 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:58:41,966 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:58:41,967 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:58:41,967 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:58:41,967 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:58:41,967 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:58:41,968 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:58:41,968 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:58:41,969 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 12:58:41,979 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:58:41,980 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:58:41,980 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:58:41,980 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:58:41,981 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:58:41,981 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:58:41,981 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:58:41,981 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:58:41,981 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:58:41,981 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:58:41,981 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:58:41,982 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:58:41,982 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:58:41,982 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:58:41,983 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:58:41,983 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:58:41,983 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:58:41,983 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:58:41,983 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:58:41,983 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:58:41,983 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:58:41,984 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:58:41,984 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:58:41,984 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:58:41,984 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:58:41,984 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:58:41,984 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:58:41,984 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:58:41,984 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 12:58:41,984 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:58:41,984 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:58:41,984 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:58:41,985 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_8982cb9a-597b-42e8-a29d-0c43edc43b16/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 -> e4382b57b29a0b5934fceb56c089bfd5b9abbe48 [2018-11-18 12:58:42,013 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:58:42,021 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:58:42,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:58:42,024 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:58:42,024 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:58:42,025 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2018-11-18 12:58:42,058 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/data/c43e5c2bd/8ef6cb05e4b841429c36c1766ac81d88/FLAG569a4a3af [2018-11-18 12:58:42,348 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:58:42,348 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/sv-benchmarks/c/floats-cdfpl/newton_1_5_false-unreach-call_true-termination.i [2018-11-18 12:58:42,352 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/data/c43e5c2bd/8ef6cb05e4b841429c36c1766ac81d88/FLAG569a4a3af [2018-11-18 12:58:42,361 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/data/c43e5c2bd/8ef6cb05e4b841429c36c1766ac81d88 [2018-11-18 12:58:42,363 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:58:42,364 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:58:42,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:58:42,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:58:42,367 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:58:42,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:58:42" (1/1) ... [2018-11-18 12:58:42,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407382b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:42, skipping insertion in model container [2018-11-18 12:58:42,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:58:42" (1/1) ... [2018-11-18 12:58:42,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:58:42,387 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:58:42,506 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:58:42,510 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:58:42,525 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:58:42,537 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:58:42,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:42 WrapperNode [2018-11-18 12:58:42,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:58:42,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:58:42,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:58:42,538 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:58:42,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:42" (1/1) ... [2018-11-18 12:58:42,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:42" (1/1) ... [2018-11-18 12:58:42,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:42" (1/1) ... [2018-11-18 12:58:42,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:42" (1/1) ... [2018-11-18 12:58:42,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:42" (1/1) ... [2018-11-18 12:58:42,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:42" (1/1) ... [2018-11-18 12:58:42,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:42" (1/1) ... [2018-11-18 12:58:42,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:58:42,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:58:42,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:58:42,565 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:58:42,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/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 12:58:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:58:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:58:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-18 12:58:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-11-18 12:58:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:58:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:58:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 12:58:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 12:58:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-18 12:58:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-11-18 12:58:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:58:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:58:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:58:47,780 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:58:47,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:58:47 BoogieIcfgContainer [2018-11-18 12:58:47,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:58:47,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:58:47,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:58:47,784 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:58:47,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:58:42" (1/3) ... [2018-11-18 12:58:47,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a454cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:58:47, skipping insertion in model container [2018-11-18 12:58:47,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:58:42" (2/3) ... [2018-11-18 12:58:47,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a454cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:58:47, skipping insertion in model container [2018-11-18 12:58:47,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:58:47" (3/3) ... [2018-11-18 12:58:47,786 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_1_5_false-unreach-call_true-termination.i [2018-11-18 12:58:47,792 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:58:47,797 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:58:47,805 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:58:47,823 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:58:47,823 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:58:47,823 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:58:47,823 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:58:47,823 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:58:47,824 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:58:47,824 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:58:47,824 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:58:47,824 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:58:47,836 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-18 12:58:47,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 12:58:47,840 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:58:47,840 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:58:47,842 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:58:47,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:58:47,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2018-11-18 12:58:47,848 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:58:47,848 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/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 12:58:47,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:58:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:00:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:00:02,166 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 13:00:02,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:00:02 BoogieIcfgContainer [2018-11-18 13:00:02,185 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:00:02,185 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:00:02,185 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:00:02,186 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:00:02,186 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:58:47" (3/4) ... [2018-11-18 13:00:02,188 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 13:00:02,217 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8982cb9a-597b-42e8-a29d-0c43edc43b16/bin-2019/uautomizer/witness.graphml [2018-11-18 13:00:02,217 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:00:02,218 INFO L168 Benchmark]: Toolchain (without parser) took 79854.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -137.9 MB). Peak memory consumption was 5.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:00:02,219 INFO L168 Benchmark]: CDTParser took 0.13 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 13:00:02,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.93 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:00:02,220 INFO L168 Benchmark]: Boogie Preprocessor took 26.67 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:00:02,221 INFO L168 Benchmark]: RCFGBuilder took 5215.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:00:02,221 INFO L168 Benchmark]: TraceAbstraction took 74403.92 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:00:02,221 INFO L168 Benchmark]: Witness Printer took 32.22 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 13:00:02,223 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 172.93 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.67 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5215.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 74403.92 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Witness Printer took 32.22 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)=-0.9821161031723022] [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)=-0.9821161031723022, \result=-0.8320216536521912, x=-0.9821161031723022] [L19] EXPR f(IN) VAL [f(IN)=-0.8320216536521912, IN=-0.9821161031723022] [L19] CALL, EXPR fp(IN) VAL [\old(x)=-0.9821161031723022] [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)=-0.9821161031723022, \result=0.5577353239059448, x=-0.9821161031723022] [L19] EXPR fp(IN) VAL [f(IN)=-0.8320216536521912, fp(IN)=0.5577353239059448, IN=-0.9821161031723022] [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) VAL [IN=-0.9821161031723022, x=0.5096697807312012] [L28] __VERIFIER_error() VAL [IN=-0.9821161031723022, x=0.5096697807312012] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. UNSAFE Result, 74.3s 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, 2.9s 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...