./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i -s /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/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 2602ec85874add80e06b2692c2aa37caac725410 ................................................................................................................................................................................................................................ 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_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i -s /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/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 2602ec85874add80e06b2692c2aa37caac725410 .................................................................................................................................................................................................................................... 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 [2019-11-15 23:07:10,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:07:10,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:07:10,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:07:10,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:07:10,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:07:10,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:07:10,067 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:07:10,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:07:10,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:07:10,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:07:10,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:07:10,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:07:10,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:07:10,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:07:10,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:07:10,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:07:10,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:07:10,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:07:10,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:07:10,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:07:10,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:07:10,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:07:10,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:07:10,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:07:10,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:07:10,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:07:10,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:07:10,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:07:10,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:07:10,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:07:10,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:07:10,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:07:10,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:07:10,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:07:10,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:07:10,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:07:10,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:07:10,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:07:10,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:07:10,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:07:10,096 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:07:10,109 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:07:10,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:07:10,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:07:10,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:07:10,111 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:07:10,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:07:10,112 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:07:10,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:07:10,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:07:10,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:07:10,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:07:10,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:07:10,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:07:10,113 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:07:10,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:07:10,114 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:07:10,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:07:10,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:07:10,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:07:10,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:07:10,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:07:10,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:07:10,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:07:10,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:07:10,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:07:10,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:07:10,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:07:10,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:07:10,117 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_69754ac1-bdd2-475a-ba03-93f22a9b392d/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 -> 2602ec85874add80e06b2692c2aa37caac725410 [2019-11-15 23:07:10,143 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:07:10,153 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:07:10,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:07:10,158 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:07:10,158 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:07:10,159 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2019-11-15 23:07:10,209 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/data/5323fa97b/f21ea9e86c794eb4be2456be2b7125a2/FLAG3191e9034 [2019-11-15 23:07:10,604 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:07:10,605 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2019-11-15 23:07:10,611 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/data/5323fa97b/f21ea9e86c794eb4be2456be2b7125a2/FLAG3191e9034 [2019-11-15 23:07:10,626 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/data/5323fa97b/f21ea9e86c794eb4be2456be2b7125a2 [2019-11-15 23:07:10,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:07:10,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:07:10,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:07:10,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:07:10,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:07:10,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:07:10" (1/1) ... [2019-11-15 23:07:10,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eed659a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:10, skipping insertion in model container [2019-11-15 23:07:10,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:07:10" (1/1) ... [2019-11-15 23:07:10,646 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:07:10,663 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:07:10,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:07:10,904 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:07:10,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:07:10,934 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:07:10,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:10 WrapperNode [2019-11-15 23:07:10,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:07:10,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:07:10,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:07:10,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:07:10,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:10" (1/1) ... [2019-11-15 23:07:10,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:10" (1/1) ... [2019-11-15 23:07:10,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:07:10,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:07:10,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:07:10,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:07:10,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:10" (1/1) ... [2019-11-15 23:07:10,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:10" (1/1) ... [2019-11-15 23:07:10,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:10" (1/1) ... [2019-11-15 23:07:10,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:10" (1/1) ... [2019-11-15 23:07:10,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:10" (1/1) ... [2019-11-15 23:07:11,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:10" (1/1) ... [2019-11-15 23:07:11,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:10" (1/1) ... [2019-11-15 23:07:11,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:07:11,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:07:11,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:07:11,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:07:11,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/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 [2019-11-15 23:07:11,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:07:11,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:07:11,279 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:07:11,279 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-15 23:07:11,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:07:11 BoogieIcfgContainer [2019-11-15 23:07:11,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:07:11,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:07:11,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:07:11,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:07:11,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:07:10" (1/3) ... [2019-11-15 23:07:11,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b43451b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:07:11, skipping insertion in model container [2019-11-15 23:07:11,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:10" (2/3) ... [2019-11-15 23:07:11,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b43451b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:07:11, skipping insertion in model container [2019-11-15 23:07:11,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:07:11" (3/3) ... [2019-11-15 23:07:11,287 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_3_8.i [2019-11-15 23:07:11,304 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:07:11,310 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:07:11,334 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:07:11,376 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:07:11,383 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:07:11,383 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:07:11,383 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:07:11,384 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:07:11,384 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:07:11,384 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:07:11,384 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:07:11,397 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-15 23:07:11,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 23:07:11,402 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:07:11,403 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:07:11,405 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:07:11,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:07:11,410 INFO L82 PathProgramCache]: Analyzing trace with hash -718896697, now seen corresponding path program 1 times [2019-11-15 23:07:11,418 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:07:11,418 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948377259] [2019-11-15 23:07:11,419 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:07:11,419 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:07:11,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:07:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:07:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:07:11,520 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:07:11,521 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:07:11,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:07:11 BoogieIcfgContainer [2019-11-15 23:07:11,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:07:11,537 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:07:11,537 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:07:11,537 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:07:11,537 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:07:11" (3/4) ... [2019-11-15 23:07:11,540 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:07:11,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:07:11,543 INFO L168 Benchmark]: Toolchain (without parser) took 911.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -119.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:07:11,543 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:07:11,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -154.3 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:07:11,545 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:07:11,545 INFO L168 Benchmark]: Boogie Preprocessor took 28.72 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:07:11,546 INFO L168 Benchmark]: RCFGBuilder took 271.16 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:07:11,547 INFO L168 Benchmark]: TraceAbstraction took 255.38 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:07:11,547 INFO L168 Benchmark]: Witness Printer took 3.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:07:11,550 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 302.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -154.3 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.30 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.72 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 271.16 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 255.38 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.98 ms. Allocated memory is still 1.1 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 23. 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) [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; [L23] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 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=14occurred 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, 9 NumberOfCodeBlocks, 9 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 [2019-11-15 23:07:13,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:07:13,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:07:13,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:07:13,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:07:13,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:07:13,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:07:13,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:07:13,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:07:13,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:07:13,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:07:13,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:07:13,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:07:13,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:07:13,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:07:13,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:07:13,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:07:13,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:07:13,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:07:13,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:07:13,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:07:13,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:07:13,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:07:13,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:07:13,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:07:13,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:07:13,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:07:13,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:07:13,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:07:13,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:07:13,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:07:13,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:07:13,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:07:13,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:07:13,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:07:13,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:07:13,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:07:13,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:07:13,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:07:13,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:07:13,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:07:13,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:07:13,751 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:07:13,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:07:13,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:07:13,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:07:13,762 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:07:13,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:07:13,763 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:07:13,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:07:13,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:07:13,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:07:13,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:07:13,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:07:13,764 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:07:13,764 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:07:13,764 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:07:13,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:07:13,764 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:07:13,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:07:13,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:07:13,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:07:13,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:07:13,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:07:13,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:07:13,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:07:13,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:07:13,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:07:13,766 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:07:13,767 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:07:13,767 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:07:13,767 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:07:13,767 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_69754ac1-bdd2-475a-ba03-93f22a9b392d/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 -> 2602ec85874add80e06b2692c2aa37caac725410 [2019-11-15 23:07:13,799 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:07:13,809 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:07:13,814 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:07:13,815 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:07:13,816 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:07:13,817 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2019-11-15 23:07:13,873 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/data/e7d6961b2/27fb2f6afef246d08d8518b168a567aa/FLAG18b6d7562 [2019-11-15 23:07:14,248 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:07:14,249 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/sv-benchmarks/c/floats-cdfpl/newton_3_8.i [2019-11-15 23:07:14,255 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/data/e7d6961b2/27fb2f6afef246d08d8518b168a567aa/FLAG18b6d7562 [2019-11-15 23:07:14,698 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/data/e7d6961b2/27fb2f6afef246d08d8518b168a567aa [2019-11-15 23:07:14,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:07:14,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:07:14,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:07:14,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:07:14,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:07:14,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:07:14" (1/1) ... [2019-11-15 23:07:14,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38646550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:14, skipping insertion in model container [2019-11-15 23:07:14,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:07:14" (1/1) ... [2019-11-15 23:07:14,715 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:07:14,733 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:07:14,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:07:14,922 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:07:14,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:07:14,952 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:07:14,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:14 WrapperNode [2019-11-15 23:07:14,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:07:14,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:07:14,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:07:14,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:07:15,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:14" (1/1) ... [2019-11-15 23:07:15,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:14" (1/1) ... [2019-11-15 23:07:15,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:07:15,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:07:15,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:07:15,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:07:15,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:14" (1/1) ... [2019-11-15 23:07:15,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:14" (1/1) ... [2019-11-15 23:07:15,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:14" (1/1) ... [2019-11-15 23:07:15,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:14" (1/1) ... [2019-11-15 23:07:15,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:14" (1/1) ... [2019-11-15 23:07:15,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:14" (1/1) ... [2019-11-15 23:07:15,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:14" (1/1) ... [2019-11-15 23:07:15,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:07:15,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:07:15,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:07:15,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:07:15,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/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 [2019-11-15 23:07:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:07:15,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:07:30,887 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:07:30,887 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-15 23:07:30,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:07:30 BoogieIcfgContainer [2019-11-15 23:07:30,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:07:30,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:07:30,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:07:30,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:07:30,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:07:14" (1/3) ... [2019-11-15 23:07:30,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d28e39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:07:30, skipping insertion in model container [2019-11-15 23:07:30,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:07:14" (2/3) ... [2019-11-15 23:07:30,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d28e39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:07:30, skipping insertion in model container [2019-11-15 23:07:30,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:07:30" (3/3) ... [2019-11-15 23:07:30,897 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_3_8.i [2019-11-15 23:07:30,906 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:07:30,912 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:07:30,922 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:07:30,943 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:07:30,943 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:07:30,943 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:07:30,944 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:07:30,944 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:07:30,944 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:07:30,944 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:07:30,945 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:07:30,957 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-15 23:07:30,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 23:07:30,963 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:07:30,963 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:07:30,965 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:07:30,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:07:30,969 INFO L82 PathProgramCache]: Analyzing trace with hash -718896697, now seen corresponding path program 1 times [2019-11-15 23:07:30,977 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:07:30,977 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828710458] [2019-11-15 23:07:30,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/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 [2019-11-15 23:07:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:07:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:07:48,317 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-15 23:07:48,318 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:07:48,518 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:07:48,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:07:48 BoogieIcfgContainer [2019-11-15 23:07:48,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:07:48,548 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:07:48,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:07:48,549 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:07:48,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:07:30" (3/4) ... [2019-11-15 23:07:48,551 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 23:07:48,592 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_69754ac1-bdd2-475a-ba03-93f22a9b392d/bin/uautomizer/witness.graphml [2019-11-15 23:07:48,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:07:48,595 INFO L168 Benchmark]: Toolchain (without parser) took 33893.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:07:48,595 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:07:48,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.29 ms. Allocated memory is still 1.0 GB. Free memory was 945.6 MB in the beginning and 934.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:07:48,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -208.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:07:48,597 INFO L168 Benchmark]: Boogie Preprocessor took 35.52 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. [2019-11-15 23:07:48,598 INFO L168 Benchmark]: RCFGBuilder took 15808.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:07:48,598 INFO L168 Benchmark]: TraceAbstraction took 17658.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:07:48,599 INFO L168 Benchmark]: Witness Printer took 45.10 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. [2019-11-15 23:07:48,602 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 251.29 ms. Allocated memory is still 1.0 GB. Free memory was 945.6 MB in the beginning and 934.9 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 90.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -208.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 15808.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17658.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Witness Printer took 45.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L21] x = x - f(x)/fp(x) [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; [L23] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Result: UNSAFE, OverallTime: 17.5s, 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=14occurred 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, 9.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 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...