./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 681fb6d62502cf59ef295360f3a46fc8f0826056 .......................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 681fb6d62502cf59ef295360f3a46fc8f0826056 .............................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:34:40,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:34:40,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:34:40,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:34:40,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:34:40,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:34:40,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:34:40,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:34:40,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:34:40,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:34:40,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:34:40,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:34:40,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:34:40,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:34:40,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:34:40,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:34:40,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:34:40,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:34:40,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:34:40,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:34:40,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:34:40,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:34:40,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:34:40,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:34:40,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:34:40,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:34:40,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:34:40,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:34:40,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:34:40,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:34:40,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:34:40,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:34:40,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:34:40,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:34:40,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:34:40,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:34:40,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:34:40,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:34:40,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:34:40,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:34:40,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:34:40,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:34:40,498 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:34:40,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:34:40,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:34:40,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:34:40,500 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:34:40,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:34:40,501 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:34:40,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:34:40,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:34:40,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:34:40,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:34:40,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:34:40,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:34:40,504 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:34:40,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:34:40,504 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:34:40,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:34:40,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:34:40,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:34:40,505 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:34:40,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:34:40,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:34:40,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:34:40,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:34:40,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:34:40,507 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:34:40,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:34:40,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:34:40,507 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_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 681fb6d62502cf59ef295360f3a46fc8f0826056 [2019-11-16 00:34:40,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:34:40,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:34:40,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:34:40,585 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:34:40,585 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:34:40,586 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-11-16 00:34:40,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/data/b457d7756/c6d07c7065a9429d8772ae16ccfcfb2b/FLAG6ea0e47f4 [2019-11-16 00:34:41,045 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:34:41,046 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-11-16 00:34:41,051 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/data/b457d7756/c6d07c7065a9429d8772ae16ccfcfb2b/FLAG6ea0e47f4 [2019-11-16 00:34:41,492 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/data/b457d7756/c6d07c7065a9429d8772ae16ccfcfb2b [2019-11-16 00:34:41,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:34:41,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:34:41,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:34:41,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:34:41,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:34:41,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:34:41" (1/1) ... [2019-11-16 00:34:41,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd041c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:41, skipping insertion in model container [2019-11-16 00:34:41,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:34:41" (1/1) ... [2019-11-16 00:34:41,510 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:34:41,524 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:34:41,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:34:41,744 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:34:41,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:34:41,780 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:34:41,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:41 WrapperNode [2019-11-16 00:34:41,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:34:41,782 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:34:41,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:34:41,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:34:41,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:41" (1/1) ... [2019-11-16 00:34:41,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:41" (1/1) ... [2019-11-16 00:34:41,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:34:41,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:34:41,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:34:41,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:34:41,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:41" (1/1) ... [2019-11-16 00:34:41,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:41" (1/1) ... [2019-11-16 00:34:41,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:41" (1/1) ... [2019-11-16 00:34:41,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:41" (1/1) ... [2019-11-16 00:34:41,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:41" (1/1) ... [2019-11-16 00:34:41,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:41" (1/1) ... [2019-11-16 00:34:41,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:41" (1/1) ... [2019-11-16 00:34:41,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:34:41,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:34:41,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:34:41,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:34:41,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/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 [2019-11-16 00:34:41,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:34:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:34:42,015 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:34:42,015 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-16 00:34:42,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:34:42 BoogieIcfgContainer [2019-11-16 00:34:42,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:34:42,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:34:42,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:34:42,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:34:42,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:34:41" (1/3) ... [2019-11-16 00:34:42,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515a0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:34:42, skipping insertion in model container [2019-11-16 00:34:42,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:41" (2/3) ... [2019-11-16 00:34:42,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515a0b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:34:42, skipping insertion in model container [2019-11-16 00:34:42,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:34:42" (3/3) ... [2019-11-16 00:34:42,024 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2019-11-16 00:34:42,032 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:34:42,038 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:34:42,047 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:34:42,065 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:34:42,066 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:34:42,066 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:34:42,066 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:34:42,066 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:34:42,066 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:34:42,066 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:34:42,066 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:34:42,077 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-16 00:34:42,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-16 00:34:42,081 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:34:42,082 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-16 00:34:42,083 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:34:42,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:34:42,087 INFO L82 PathProgramCache]: Analyzing trace with hash 29647107, now seen corresponding path program 1 times [2019-11-16 00:34:42,093 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:34:42,094 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381019873] [2019-11-16 00:34:42,094 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:34:42,094 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:34:42,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:34:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:34:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:34:42,178 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:34:42,179 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:34:42,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:34:42 BoogieIcfgContainer [2019-11-16 00:34:42,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:34:42,193 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:34:42,193 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:34:42,193 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:34:42,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:34:42" (3/4) ... [2019-11-16 00:34:42,196 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:34:42,196 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:34:42,199 INFO L168 Benchmark]: Toolchain (without parser) took 702.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -143.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:34:42,199 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:34:42,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:34:42,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.63 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. [2019-11-16 00:34:42,201 INFO L168 Benchmark]: Boogie Preprocessor took 16.61 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:34:42,202 INFO L168 Benchmark]: RCFGBuilder took 182.26 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: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:34:42,202 INFO L168 Benchmark]: TraceAbstraction took 174.96 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. [2019-11-16 00:34:42,203 INFO L168 Benchmark]: Witness Printer took 3.76 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. [2019-11-16 00:34:42,206 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 285.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.63 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 16.61 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 182.26 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: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 174.96 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 3.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 19. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-16 00:34:44,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:34:44,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:34:44,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:34:44,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:34:44,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:34:44,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:34:44,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:34:44,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:34:44,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:34:44,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:34:44,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:34:44,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:34:44,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:34:44,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:34:44,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:34:44,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:34:44,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:34:44,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:34:44,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:34:44,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:34:44,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:34:44,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:34:44,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:34:44,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:34:44,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:34:44,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:34:44,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:34:44,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:34:44,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:34:44,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:34:44,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:34:44,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:34:44,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:34:44,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:34:44,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:34:44,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:34:44,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:34:44,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:34:44,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:34:44,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:34:44,365 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:34:44,383 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:34:44,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:34:44,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:34:44,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:34:44,385 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:34:44,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:34:44,385 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:34:44,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:34:44,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:34:44,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:34:44,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:34:44,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:34:44,387 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:34:44,387 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:34:44,387 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:34:44,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:34:44,387 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:34:44,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:34:44,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:34:44,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:34:44,388 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:34:44,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:34:44,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:34:44,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:34:44,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:34:44,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:34:44,389 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:34:44,389 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:34:44,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:34:44,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:34:44,390 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_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 681fb6d62502cf59ef295360f3a46fc8f0826056 [2019-11-16 00:34:44,438 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:34:44,448 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:34:44,451 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:34:44,453 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:34:44,453 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:34:44,454 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-11-16 00:34:44,507 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/data/16eadecff/8719d7f44b2b490ab9fc2def51e8faab/FLAG212f5d4f8 [2019-11-16 00:34:44,912 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:34:44,913 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/sv-benchmarks/c/floats-cdfpl/newton_1_6.i [2019-11-16 00:34:44,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/data/16eadecff/8719d7f44b2b490ab9fc2def51e8faab/FLAG212f5d4f8 [2019-11-16 00:34:45,339 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/data/16eadecff/8719d7f44b2b490ab9fc2def51e8faab [2019-11-16 00:34:45,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:34:45,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:34:45,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:34:45,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:34:45,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:34:45,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:34:45" (1/1) ... [2019-11-16 00:34:45,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f60fce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:45, skipping insertion in model container [2019-11-16 00:34:45,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:34:45" (1/1) ... [2019-11-16 00:34:45,365 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:34:45,385 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:34:45,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:34:45,548 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:34:45,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:34:45,578 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:34:45,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:45 WrapperNode [2019-11-16 00:34:45,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:34:45,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:34:45,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:34:45,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:34:45,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:45" (1/1) ... [2019-11-16 00:34:45,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:45" (1/1) ... [2019-11-16 00:34:45,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:34:45,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:34:45,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:34:45,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:34:45,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:45" (1/1) ... [2019-11-16 00:34:45,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:45" (1/1) ... [2019-11-16 00:34:45,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:45" (1/1) ... [2019-11-16 00:34:45,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:45" (1/1) ... [2019-11-16 00:34:45,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:45" (1/1) ... [2019-11-16 00:34:45,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:45" (1/1) ... [2019-11-16 00:34:45,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:45" (1/1) ... [2019-11-16 00:34:45,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:34:45,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:34:45,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:34:45,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:34:45,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/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 [2019-11-16 00:34:45,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:34:45,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:34:51,276 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:34:51,277 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-16 00:34:51,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:34:51 BoogieIcfgContainer [2019-11-16 00:34:51,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:34:51,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:34:51,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:34:51,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:34:51,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:34:45" (1/3) ... [2019-11-16 00:34:51,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752e95b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:34:51, skipping insertion in model container [2019-11-16 00:34:51,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:34:45" (2/3) ... [2019-11-16 00:34:51,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752e95b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:34:51, skipping insertion in model container [2019-11-16 00:34:51,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:34:51" (3/3) ... [2019-11-16 00:34:51,284 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_6.i [2019-11-16 00:34:51,293 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:34:51,298 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:34:51,307 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:34:51,325 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:34:51,326 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:34:51,326 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:34:51,326 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:34:51,327 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:34:51,327 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:34:51,327 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:34:51,327 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:34:51,340 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-16 00:34:51,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-16 00:34:51,346 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:34:51,347 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-16 00:34:51,349 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:34:51,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:34:51,353 INFO L82 PathProgramCache]: Analyzing trace with hash 29647107, now seen corresponding path program 1 times [2019-11-16 00:34:51,360 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:34:51,361 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264392246] [2019-11-16 00:34:51,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/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 [2019-11-16 00:35:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:35:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:35:19,960 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-16 00:35:19,961 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:35:20,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:35:20,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:35:20 BoogieIcfgContainer [2019-11-16 00:35:20,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:35:20,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:35:20,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:35:20,180 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:35:20,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:34:51" (3/4) ... [2019-11-16 00:35:20,182 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-16 00:35:20,216 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d1b5888d-24d7-4e58-bfc0-91852bc28a89/bin/uautomizer/witness.graphml [2019-11-16 00:35:20,216 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:35:20,219 INFO L168 Benchmark]: Toolchain (without parser) took 34872.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -152.4 MB). Peak memory consumption was 687.7 kB. Max. memory is 11.5 GB. [2019-11-16 00:35:20,219 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:35:20,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.08 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:35:20,221 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -208.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:35:20,221 INFO L168 Benchmark]: Boogie Preprocessor took 54.33 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. [2019-11-16 00:35:20,222 INFO L168 Benchmark]: RCFGBuilder took 5540.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:35:20,223 INFO L168 Benchmark]: TraceAbstraction took 28900.82 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:35:20,223 INFO L168 Benchmark]: Witness Printer took 36.78 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. [2019-11-16 00:35:20,227 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 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 231.08 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 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 103.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -208.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.33 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 5540.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 28900.82 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Witness Printer took 36.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 28.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 13.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...