./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d89a0564bbb0fd26a33f9c676f8f302637a0505 ............................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d89a0564bbb0fd26a33f9c676f8f302637a0505 ................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:54:55,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:55,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:55,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:55,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:55,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:55,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:55,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:55,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:55,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:55,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:55,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:55,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:55,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:55,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:55,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:55,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:55,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:55,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:55,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:55,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:55,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:55,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:55,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:55,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:55,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:55,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:55,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:55,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:55,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:55,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:55,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:55,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:55,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:55,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:55,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:55,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:55,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:55,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:55,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:55,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:55,556 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:54:55,567 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:55,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:55,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:55,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:55,569 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:55,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:55,569 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:55,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:54:55,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:55,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:55,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:55,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:55,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:55,570 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:55,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:55,571 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:55,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:55,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:55,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:55,571 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:55,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:55,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:55,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:55,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:55,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:55,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:54:55,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:54:55,573 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:55,573 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d89a0564bbb0fd26a33f9c676f8f302637a0505 [2019-10-22 08:54:55,610 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:55,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:55,624 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:55,625 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:55,626 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:55,626 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-10-22 08:54:55,687 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/data/4b880d259/1f9fbd27b9634d8a8528e3928c648bd3/FLAGccceff8e7 [2019-10-22 08:54:56,071 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:56,071 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-10-22 08:54:56,076 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/data/4b880d259/1f9fbd27b9634d8a8528e3928c648bd3/FLAGccceff8e7 [2019-10-22 08:54:56,088 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/data/4b880d259/1f9fbd27b9634d8a8528e3928c648bd3 [2019-10-22 08:54:56,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:56,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:56,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:56,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:56,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:56,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:56" (1/1) ... [2019-10-22 08:54:56,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425433a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:56, skipping insertion in model container [2019-10-22 08:54:56,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:56" (1/1) ... [2019-10-22 08:54:56,112 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:56,126 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:56,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:56,312 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:56,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:56,344 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:56,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:56 WrapperNode [2019-10-22 08:54:56,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:56,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:56,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:56,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:56,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:56" (1/1) ... [2019-10-22 08:54:56,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:56" (1/1) ... [2019-10-22 08:54:56,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:56,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:56,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:56,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:56,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:56" (1/1) ... [2019-10-22 08:54:56,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:56" (1/1) ... [2019-10-22 08:54:56,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:56" (1/1) ... [2019-10-22 08:54:56,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:56" (1/1) ... [2019-10-22 08:54:56,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:56" (1/1) ... [2019-10-22 08:54:56,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:56" (1/1) ... [2019-10-22 08:54:56,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:56" (1/1) ... [2019-10-22 08:54:56,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:56,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:56,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:56,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:56,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:56,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:54:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:54:56,621 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:54:56,621 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-10-22 08:54:56,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:56 BoogieIcfgContainer [2019-10-22 08:54:56,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:54:56,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:54:56,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:54:56,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:54:56,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:56" (1/3) ... [2019-10-22 08:54:56,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82ef0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:56, skipping insertion in model container [2019-10-22 08:54:56,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:56" (2/3) ... [2019-10-22 08:54:56,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82ef0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:54:56, skipping insertion in model container [2019-10-22 08:54:56,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:56" (3/3) ... [2019-10-22 08:54:56,634 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2019-10-22 08:54:56,644 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:54:56,652 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:54:56,663 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:54:56,686 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:54:56,687 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:54:56,687 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:54:56,687 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:54:56,687 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:54:56,687 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:54:56,687 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:54:56,688 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:54:56,703 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-10-22 08:54:56,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:54:56,709 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:54:56,710 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:54:56,714 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:54:56,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:54:56,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1573930651, now seen corresponding path program 1 times [2019-10-22 08:54:56,727 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:54:56,727 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420223995] [2019-10-22 08:54:56,728 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:56,728 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:54:56,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:54:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:54:56,818 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:54:56,819 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:54:56,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:54:56 BoogieIcfgContainer [2019-10-22 08:54:56,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:54:56,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:54:56,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:54:56,833 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:54:56,833 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:54:56" (3/4) ... [2019-10-22 08:54:56,837 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:54:56,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:54:56,839 INFO L168 Benchmark]: Toolchain (without parser) took 746.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:56,840 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:56,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -192.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:56,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:56,841 INFO L168 Benchmark]: Boogie Preprocessor took 17.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:56,842 INFO L168 Benchmark]: RCFGBuilder took 225.62 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:56,843 INFO L168 Benchmark]: TraceAbstraction took 208.86 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:54:56,843 INFO L168 Benchmark]: Witness Printer took 4.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:54:56,846 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 251.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -192.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 225.62 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: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 208.86 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 21. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 08:54:58,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:54:58,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:54:58,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:54:58,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:54:58,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:54:58,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:54:58,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:54:58,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:54:58,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:54:58,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:54:58,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:54:58,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:54:58,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:54:58,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:54:58,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:54:58,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:54:58,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:54:58,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:54:58,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:54:58,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:54:58,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:54:58,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:54:58,922 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:54:58,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:54:58,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:54:58,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:54:58,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:54:58,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:54:58,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:54:58,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:54:58,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:54:58,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:54:58,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:54:58,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:54:58,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:54:58,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:54:58,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:54:58,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:54:58,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:54:58,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:54:58,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:54:58,964 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:54:58,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:54:58,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:54:58,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:54:58,968 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:54:58,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:54:58,969 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:54:58,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:54:58,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:54:58,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:54:58,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:54:58,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:54:58,970 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:54:58,970 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:54:58,970 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:54:58,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:54:58,971 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:54:58,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:54:58,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:54:58,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:54:58,971 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:54:58,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:54:58,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:54:58,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:54:58,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:54:58,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:54:58,972 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:54:58,972 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:54:58,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:54:58,973 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:54:58,973 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d89a0564bbb0fd26a33f9c676f8f302637a0505 [2019-10-22 08:54:59,016 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:54:59,033 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:54:59,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:54:59,039 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:54:59,040 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:54:59,040 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-10-22 08:54:59,095 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/data/e66bb52d9/0426868990d64d1bb25ed456156d1041/FLAG62277097c [2019-10-22 08:54:59,472 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:54:59,473 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-10-22 08:54:59,478 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/data/e66bb52d9/0426868990d64d1bb25ed456156d1041/FLAG62277097c [2019-10-22 08:54:59,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/data/e66bb52d9/0426868990d64d1bb25ed456156d1041 [2019-10-22 08:54:59,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:54:59,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:54:59,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:59,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:54:59,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:54:59,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be24212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59, skipping insertion in model container [2019-10-22 08:54:59,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,514 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:54:59,531 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:54:59,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:59,741 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:54:59,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:54:59,788 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:54:59,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59 WrapperNode [2019-10-22 08:54:59,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:54:59,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:59,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:54:59,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:54:59,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:54:59,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:54:59,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:54:59,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:54:59,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... [2019-10-22 08:54:59,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:54:59,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:54:59,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:54:59,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:54:59,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:00,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:00,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:11,655 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:11,656 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-10-22 08:55:11,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:11 BoogieIcfgContainer [2019-10-22 08:55:11,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:11,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:11,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:11,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:11,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:54:59" (1/3) ... [2019-10-22 08:55:11,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b987acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:11, skipping insertion in model container [2019-10-22 08:55:11,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:54:59" (2/3) ... [2019-10-22 08:55:11,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b987acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:11, skipping insertion in model container [2019-10-22 08:55:11,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:11" (3/3) ... [2019-10-22 08:55:11,674 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2019-10-22 08:55:11,684 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:11,691 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:55:11,702 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:55:11,731 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:11,731 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:11,731 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:11,732 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:11,742 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:11,742 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:11,742 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:11,743 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:11,757 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-10-22 08:55:11,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:55:11,769 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:11,770 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:55:11,772 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:11,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:11,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1573930651, now seen corresponding path program 1 times [2019-10-22 08:55:11,789 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:55:11,790 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616127974] [2019-10-22 08:55:11,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-10-22 08:55:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:55:34,302 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-10-22 08:55:34,302 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:55:34,503 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:55:34,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:55:34 BoogieIcfgContainer [2019-10-22 08:55:34,523 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:55:34,524 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:55:34,524 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:55:34,524 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:55:34,525 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:11" (3/4) ... [2019-10-22 08:55:34,527 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:55:34,582 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7ae7eb01-69ec-46c2-8a9d-111da12d4375/bin/uautomizer/witness.graphml [2019-10-22 08:55:34,583 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:55:34,586 INFO L168 Benchmark]: Toolchain (without parser) took 35086.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -119.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:34,586 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:34,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.26 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:34,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 129.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -179.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:34,591 INFO L168 Benchmark]: Boogie Preprocessor took 31.54 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:34,592 INFO L168 Benchmark]: RCFGBuilder took 11706.23 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:34,593 INFO L168 Benchmark]: TraceAbstraction took 22865.35 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: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:55:34,597 INFO L168 Benchmark]: Witness Printer took 59.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:55:34,600 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.26 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 129.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -179.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.54 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11706.23 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 22865.35 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: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Witness Printer took 59.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Result: UNSAFE, OverallTime: 22.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 13.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...