./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/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 aa8c67e8913fc2cd1e62a9cfd95ae3f25cd4036f ........................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/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 aa8c67e8913fc2cd1e62a9cfd95ae3f25cd4036f ................................................................................................................................................................................................................................. 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 0.1.24-678e011 [2019-11-19 23:25:04,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:25:04,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:25:04,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:25:04,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:25:04,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:25:04,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:25:04,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:25:04,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:25:04,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:25:04,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:25:04,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:25:04,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:25:04,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:25:04,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:25:04,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:25:04,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:25:04,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:25:04,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:25:04,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:25:04,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:25:04,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:25:04,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:25:04,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:25:04,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:25:04,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:25:04,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:25:04,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:25:04,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:25:04,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:25:04,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:25:04,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:25:04,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:25:04,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:25:04,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:25:04,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:25:04,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:25:04,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:25:04,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:25:04,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:25:04,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:25:04,249 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 23:25:04,280 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:25:04,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:25:04,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:25:04,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:25:04,282 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:25:04,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:25:04,282 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:25:04,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:25:04,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:25:04,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:25:04,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:25:04,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:25:04,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:25:04,284 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:25:04,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:25:04,284 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:25:04,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:25:04,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:25:04,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:25:04,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:25:04,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:25:04,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:25:04,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:25:04,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:25:04,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:25:04,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:25:04,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:25:04,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:25:04,287 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/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/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 -> aa8c67e8913fc2cd1e62a9cfd95ae3f25cd4036f [2019-11-19 23:25:04,496 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:25:04,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:25:04,511 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:25:04,512 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:25:04,513 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:25:04,514 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2019-11-19 23:25:04,587 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/data/28b0e4f2a/9c29a67137144ef99f97fc65d195f578/FLAG134fcebf8 [2019-11-19 23:25:04,967 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:25:04,967 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2019-11-19 23:25:04,975 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/data/28b0e4f2a/9c29a67137144ef99f97fc65d195f578/FLAG134fcebf8 [2019-11-19 23:25:04,989 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/data/28b0e4f2a/9c29a67137144ef99f97fc65d195f578 [2019-11-19 23:25:04,993 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:25:04,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:25:04,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:25:04,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:25:04,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:25:05,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:25:04" (1/1) ... [2019-11-19 23:25:05,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38372a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:05, skipping insertion in model container [2019-11-19 23:25:05,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:25:04" (1/1) ... [2019-11-19 23:25:05,011 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:25:05,034 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:25:05,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:25:05,270 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:25:05,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:25:05,405 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:25:05,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:05 WrapperNode [2019-11-19 23:25:05,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:25:05,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:25:05,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:25:05,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:25:05,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:05" (1/1) ... [2019-11-19 23:25:05,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:05" (1/1) ... [2019-11-19 23:25:05,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:25:05,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:25:05,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:25:05,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:25:05,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:05" (1/1) ... [2019-11-19 23:25:05,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:05" (1/1) ... [2019-11-19 23:25:05,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:05" (1/1) ... [2019-11-19 23:25:05,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:05" (1/1) ... [2019-11-19 23:25:05,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:05" (1/1) ... [2019-11-19 23:25:05,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:05" (1/1) ... [2019-11-19 23:25:05,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:05" (1/1) ... [2019-11-19 23:25:05,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:25:05,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:25:05,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:25:05,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:25:05,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/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 [2019-11-19 23:25:05,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:25:05,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:25:05,747 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:25:05,748 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-19 23:25:05,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:05 BoogieIcfgContainer [2019-11-19 23:25:05,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:25:05,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:25:05,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:25:05,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:25:05,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:25:04" (1/3) ... [2019-11-19 23:25:05,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fc27e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:25:05, skipping insertion in model container [2019-11-19 23:25:05,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:05" (2/3) ... [2019-11-19 23:25:05,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fc27e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:25:05, skipping insertion in model container [2019-11-19 23:25:05,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:05" (3/3) ... [2019-11-19 23:25:05,762 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_7.i [2019-11-19 23:25:05,771 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:25:05,777 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:25:05,786 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:25:05,806 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:25:05,807 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:25:05,807 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:25:05,807 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:25:05,807 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:25:05,807 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:25:05,807 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:25:05,808 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:25:05,821 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-19 23:25:05,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 23:25:05,826 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:25:05,827 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:25:05,827 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:25:05,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:25:05,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1573930651, now seen corresponding path program 1 times [2019-11-19 23:25:05,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:25:05,838 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851741399] [2019-11-19 23:25:05,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:25:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:25:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:25:05,953 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:25:05,954 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 23:25:05,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:25:05 BoogieIcfgContainer [2019-11-19 23:25:05,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:25:05,972 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:25:05,972 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:25:05,972 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:25:05,973 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:05" (3/4) ... [2019-11-19 23:25:05,976 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 23:25:05,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:25:05,978 INFO L168 Benchmark]: Toolchain (without parser) took 983.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -130.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:25:05,979 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:25:05,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -162.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:05,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:05,982 INFO L168 Benchmark]: Boogie Preprocessor took 51.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:05,983 INFO L168 Benchmark]: RCFGBuilder took 243.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:05,984 INFO L168 Benchmark]: TraceAbstraction took 221.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:05,985 INFO L168 Benchmark]: Witness Printer took 4.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:25:05,990 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 411.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -162.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 243.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 221.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. 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 0.1.24-678e011 [2019-11-19 23:25:08,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:25:08,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:25:08,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:25:08,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:25:08,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:25:08,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:25:08,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:25:08,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:25:08,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:25:08,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:25:08,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:25:08,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:25:08,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:25:08,087 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:25:08,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:25:08,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:25:08,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:25:08,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:25:08,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:25:08,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:25:08,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:25:08,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:25:08,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:25:08,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:25:08,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:25:08,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:25:08,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:25:08,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:25:08,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:25:08,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:25:08,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:25:08,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:25:08,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:25:08,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:25:08,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:25:08,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:25:08,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:25:08,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:25:08,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:25:08,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:25:08,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 23:25:08,158 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:25:08,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:25:08,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:25:08,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:25:08,161 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:25:08,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:25:08,162 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:25:08,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:25:08,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:25:08,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:25:08,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:25:08,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:25:08,164 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 23:25:08,164 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 23:25:08,164 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:25:08,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:25:08,165 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:25:08,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:25:08,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:25:08,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:25:08,166 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:25:08,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:25:08,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:25:08,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:25:08,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:25:08,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:25:08,168 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 23:25:08,168 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 23:25:08,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:25:08,169 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 23:25:08,169 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/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 -> aa8c67e8913fc2cd1e62a9cfd95ae3f25cd4036f [2019-11-19 23:25:08,477 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:25:08,488 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:25:08,491 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:25:08,492 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:25:08,493 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:25:08,493 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2019-11-19 23:25:08,559 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/data/3f54886e4/a961e47e590d493e98c63ecfd3ad962a/FLAG953d49c19 [2019-11-19 23:25:09,015 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:25:09,015 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2019-11-19 23:25:09,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/data/3f54886e4/a961e47e590d493e98c63ecfd3ad962a/FLAG953d49c19 [2019-11-19 23:25:09,427 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/data/3f54886e4/a961e47e590d493e98c63ecfd3ad962a [2019-11-19 23:25:09,429 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:25:09,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:25:09,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:25:09,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:25:09,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:25:09,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:25:09" (1/1) ... [2019-11-19 23:25:09,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e350cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:09, skipping insertion in model container [2019-11-19 23:25:09,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:25:09" (1/1) ... [2019-11-19 23:25:09,446 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:25:09,461 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:25:09,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:25:09,687 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:25:09,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:25:09,722 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:25:09,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:09 WrapperNode [2019-11-19 23:25:09,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:25:09,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:25:09,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:25:09,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:25:09,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:09" (1/1) ... [2019-11-19 23:25:09,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:09" (1/1) ... [2019-11-19 23:25:09,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:25:09,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:25:09,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:25:09,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:25:09,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:09" (1/1) ... [2019-11-19 23:25:09,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:09" (1/1) ... [2019-11-19 23:25:09,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:09" (1/1) ... [2019-11-19 23:25:09,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:09" (1/1) ... [2019-11-19 23:25:09,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:09" (1/1) ... [2019-11-19 23:25:09,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:09" (1/1) ... [2019-11-19 23:25:09,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:09" (1/1) ... [2019-11-19 23:25:09,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:25:09,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:25:09,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:25:09,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:25:09,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/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 [2019-11-19 23:25:09,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:25:09,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:25:20,637 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:25:20,637 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-19 23:25:20,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:20 BoogieIcfgContainer [2019-11-19 23:25:20,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:25:20,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:25:20,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:25:20,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:25:20,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:25:09" (1/3) ... [2019-11-19 23:25:20,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b37e4ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:25:20, skipping insertion in model container [2019-11-19 23:25:20,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:25:09" (2/3) ... [2019-11-19 23:25:20,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b37e4ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:25:20, skipping insertion in model container [2019-11-19 23:25:20,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:20" (3/3) ... [2019-11-19 23:25:20,659 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_7.i [2019-11-19 23:25:20,681 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:25:20,688 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 23:25:20,699 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 23:25:20,741 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:25:20,742 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:25:20,742 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:25:20,742 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:25:20,742 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:25:20,743 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:25:20,743 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:25:20,743 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:25:20,756 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-19 23:25:20,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 23:25:20,762 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:25:20,763 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:25:20,764 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:25:20,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:25:20,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1573930651, now seen corresponding path program 1 times [2019-11-19 23:25:20,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 23:25:20,808 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914837083] [2019-11-19 23:25:20,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/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 [2019-11-19 23:26:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:27:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:27:34,183 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-19 23:27:34,184 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 23:27:34,384 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 23:27:34,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:27:34 BoogieIcfgContainer [2019-11-19 23:27:34,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:27:34,414 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:27:34,414 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:27:34,414 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:27:34,415 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:25:20" (3/4) ... [2019-11-19 23:27:34,417 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 23:27:34,461 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5eb701fe-364b-4733-a30f-174bfdd32f0b/bin/uautomizer/witness.graphml [2019-11-19 23:27:34,462 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:27:34,463 INFO L168 Benchmark]: Toolchain (without parser) took 145032.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 963.1 MB in the beginning and 1.1 GB in the end (delta: -135.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:27:34,464 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:27:34,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.63 ms. Allocated memory is still 1.0 GB. Free memory was 963.1 MB in the beginning and 952.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:27:34,466 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -193.6 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:27:34,466 INFO L168 Benchmark]: Boogie Preprocessor took 30.33 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-19 23:27:34,467 INFO L168 Benchmark]: RCFGBuilder took 10789.77 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2019-11-19 23:27:34,468 INFO L168 Benchmark]: TraceAbstraction took 133773.66 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: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-11-19 23:27:34,469 INFO L168 Benchmark]: Witness Printer took 47.82 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-19 23:27:34,473 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 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 290.63 ms. Allocated memory is still 1.0 GB. Free memory was 963.1 MB in the beginning and 952.4 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 95.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -193.6 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.33 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10789.77 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 133773.66 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: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * Witness Printer took 47.82 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: 6.5 MB). Peak memory consumption was 6.5 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(); [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: 133.6s, 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, 88.4s 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...