./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i -s /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d89a0564bbb0fd26a33f9c676f8f302637a0505 ........................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i -s /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d89a0564bbb0fd26a33f9c676f8f302637a0505 ................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:23:13,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:23:13,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:23:13,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:23:13,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:23:13,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:23:13,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:23:13,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:23:13,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:23:13,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:23:13,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:23:13,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:23:13,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:23:13,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:23:13,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:23:13,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:23:13,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:23:13,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:23:13,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:23:13,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:23:13,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:23:13,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:23:13,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:23:13,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:23:13,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:23:13,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:23:13,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:23:13,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:23:13,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:23:13,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:23:13,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:23:13,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:23:13,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:23:13,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:23:13,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:23:13,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:23:13,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:23:13,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:23:13,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:23:13,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:23:13,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:23:13,689 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 10:23:13,706 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:23:13,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:23:13,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:23:13,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:23:13,709 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:23:13,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:23:13,709 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:23:13,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:23:13,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:23:13,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:23:13,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:23:13,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:23:13,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:23:13,712 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:23:13,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:23:13,712 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:23:13,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:23:13,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:23:13,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:23:13,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:23:13,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:23:13,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:23:13,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:23:13,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:23:13,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:23:13,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:23:13,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:23:13,715 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:23:13,716 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_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d89a0564bbb0fd26a33f9c676f8f302637a0505 [2019-11-20 10:23:13,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:23:13,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:23:13,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:23:13,932 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:23:13,932 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:23:13,933 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-11-20 10:23:13,998 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/data/c13423e66/fe91d9d3bbe14d2bb29010df3fa03cbd/FLAG5231dd861 [2019-11-20 10:23:14,426 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:23:14,427 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-11-20 10:23:14,434 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/data/c13423e66/fe91d9d3bbe14d2bb29010df3fa03cbd/FLAG5231dd861 [2019-11-20 10:23:14,851 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/data/c13423e66/fe91d9d3bbe14d2bb29010df3fa03cbd [2019-11-20 10:23:14,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:23:14,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:23:14,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:23:14,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:23:14,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:23:14,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:23:14" (1/1) ... [2019-11-20 10:23:14,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e3e7417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:14, skipping insertion in model container [2019-11-20 10:23:14,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:23:14" (1/1) ... [2019-11-20 10:23:14,881 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:23:14,903 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:23:15,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:23:15,242 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:23:15,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:23:15,287 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:23:15,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:15 WrapperNode [2019-11-20 10:23:15,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:23:15,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:23:15,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:23:15,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:23:15,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:15" (1/1) ... [2019-11-20 10:23:15,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:15" (1/1) ... [2019-11-20 10:23:15,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:23:15,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:23:15,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:23:15,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:23:15,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:15" (1/1) ... [2019-11-20 10:23:15,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:15" (1/1) ... [2019-11-20 10:23:15,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:15" (1/1) ... [2019-11-20 10:23:15,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:15" (1/1) ... [2019-11-20 10:23:15,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:15" (1/1) ... [2019-11-20 10:23:15,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:15" (1/1) ... [2019-11-20 10:23:15,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:15" (1/1) ... [2019-11-20 10:23:15,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:23:15,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:23:15,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:23:15,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:23:15,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/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 [2019-11-20 10:23:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:23:15,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:23:15,570 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:23:15,571 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 10:23:15,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:23:15 BoogieIcfgContainer [2019-11-20 10:23:15,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:23:15,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:23:15,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:23:15,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:23:15,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:23:14" (1/3) ... [2019-11-20 10:23:15,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697ad52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:23:15, skipping insertion in model container [2019-11-20 10:23:15,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:15" (2/3) ... [2019-11-20 10:23:15,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@697ad52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:23:15, skipping insertion in model container [2019-11-20 10:23:15,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:23:15" (3/3) ... [2019-11-20 10:23:15,580 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2019-11-20 10:23:15,590 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:23:15,597 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:23:15,609 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:23:15,634 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:23:15,635 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:23:15,635 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:23:15,635 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:23:15,635 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:23:15,635 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:23:15,636 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:23:15,636 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:23:15,651 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-20 10:23:15,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 10:23:15,657 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:23:15,658 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:23:15,658 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:23:15,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:23:15,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1573930651, now seen corresponding path program 1 times [2019-11-20 10:23:15,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:23:15,674 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443358658] [2019-11-20 10:23:15,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:23:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:23:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:23:15,797 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:23:15,798 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:23:15,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:23:15 BoogieIcfgContainer [2019-11-20 10:23:15,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:23:15,818 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:23:15,819 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:23:15,819 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:23:15,819 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:23:15" (3/4) ... [2019-11-20 10:23:15,823 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:23:15,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:23:15,826 INFO L168 Benchmark]: Toolchain (without parser) took 967.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:23:15,827 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:23:15,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -201.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:15,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:23:15,829 INFO L168 Benchmark]: Boogie Preprocessor took 24.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:15,830 INFO L168 Benchmark]: RCFGBuilder took 217.42 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: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:15,831 INFO L168 Benchmark]: TraceAbstraction took 244.99 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:15,831 INFO L168 Benchmark]: Witness Printer took 5.10 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. [2019-11-20 10:23:15,835 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 430.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -201.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 217.42 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: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 244.99 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Witness Printer took 5.10 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: - UnprovableResult [Line: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 21. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 10:23:18,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:23:18,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:23:18,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:23:18,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:23:18,033 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:23:18,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:23:18,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:23:18,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:23:18,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:23:18,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:23:18,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:23:18,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:23:18,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:23:18,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:23:18,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:23:18,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:23:18,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:23:18,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:23:18,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:23:18,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:23:18,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:23:18,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:23:18,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:23:18,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:23:18,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:23:18,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:23:18,072 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:23:18,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:23:18,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:23:18,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:23:18,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:23:18,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:23:18,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:23:18,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:23:18,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:23:18,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:23:18,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:23:18,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:23:18,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:23:18,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:23:18,080 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 10:23:18,095 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:23:18,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:23:18,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:23:18,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:23:18,097 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:23:18,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:23:18,100 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:23:18,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:23:18,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:23:18,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:23:18,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:23:18,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:23:18,101 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 10:23:18,102 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 10:23:18,102 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:23:18,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:23:18,102 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:23:18,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:23:18,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:23:18,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:23:18,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:23:18,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:23:18,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:23:18,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:23:18,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:23:18,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:23:18,104 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 10:23:18,104 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 10:23:18,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:23:18,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 10:23:18,105 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_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d89a0564bbb0fd26a33f9c676f8f302637a0505 [2019-11-20 10:23:18,376 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:23:18,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:23:18,395 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:23:18,397 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:23:18,397 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:23:18,398 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-11-20 10:23:18,459 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/data/d75c82129/3381564116a74aec946b4515196d38cf/FLAGf8009ca35 [2019-11-20 10:23:18,913 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:23:18,914 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-11-20 10:23:18,920 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/data/d75c82129/3381564116a74aec946b4515196d38cf/FLAGf8009ca35 [2019-11-20 10:23:19,337 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/data/d75c82129/3381564116a74aec946b4515196d38cf [2019-11-20 10:23:19,340 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:23:19,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:23:19,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:23:19,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:23:19,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:23:19,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:23:19" (1/1) ... [2019-11-20 10:23:19,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533d549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:19, skipping insertion in model container [2019-11-20 10:23:19,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:23:19" (1/1) ... [2019-11-20 10:23:19,361 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:23:19,379 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:23:19,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:23:19,561 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:23:19,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:23:19,597 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:23:19,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:19 WrapperNode [2019-11-20 10:23:19,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:23:19,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:23:19,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:23:19,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:23:19,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:19" (1/1) ... [2019-11-20 10:23:19,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:19" (1/1) ... [2019-11-20 10:23:19,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:23:19,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:23:19,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:23:19,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:23:19,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:19" (1/1) ... [2019-11-20 10:23:19,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:19" (1/1) ... [2019-11-20 10:23:19,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:19" (1/1) ... [2019-11-20 10:23:19,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:19" (1/1) ... [2019-11-20 10:23:19,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:19" (1/1) ... [2019-11-20 10:23:19,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:19" (1/1) ... [2019-11-20 10:23:19,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:19" (1/1) ... [2019-11-20 10:23:19,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:23:19,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:23:19,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:23:19,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:23:19,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/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 [2019-11-20 10:23:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:23:19,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:23:30,878 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:23:30,879 INFO L285 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-20 10:23:30,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:23:30 BoogieIcfgContainer [2019-11-20 10:23:30,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:23:30,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:23:30,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:23:30,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:23:30,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:23:19" (1/3) ... [2019-11-20 10:23:30,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a791c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:23:30, skipping insertion in model container [2019-11-20 10:23:30,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:23:19" (2/3) ... [2019-11-20 10:23:30,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a791c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:23:30, skipping insertion in model container [2019-11-20 10:23:30,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:23:30" (3/3) ... [2019-11-20 10:23:30,902 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2019-11-20 10:23:30,923 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:23:30,930 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:23:30,954 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:23:30,976 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:23:30,977 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:23:30,977 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:23:30,977 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:23:30,978 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:23:30,978 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:23:30,978 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:23:30,978 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:23:30,991 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-20 10:23:30,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 10:23:30,997 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:23:30,998 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:23:30,998 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:23:31,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:23:31,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1573930651, now seen corresponding path program 1 times [2019-11-20 10:23:31,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:23:31,016 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279019988] [2019-11-20 10:23:31,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/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 [2019-11-20 10:23:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:23:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:23:59,036 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-20 10:23:59,037 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:23:59,237 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 10:23:59,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:23:59 BoogieIcfgContainer [2019-11-20 10:23:59,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:23:59,269 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:23:59,269 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:23:59,269 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:23:59,270 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:23:30" (3/4) ... [2019-11-20 10:23:59,272 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 10:23:59,321 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_eff8da9d-907b-4b45-86b8-61532cf55c6b/bin/uautomizer/witness.graphml [2019-11-20 10:23:59,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:23:59,324 INFO L168 Benchmark]: Toolchain (without parser) took 39980.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -129.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:59,324 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:23:59,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.76 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:59,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:59,327 INFO L168 Benchmark]: Boogie Preprocessor took 26.81 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. [2019-11-20 10:23:59,328 INFO L168 Benchmark]: RCFGBuilder took 11165.96 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: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:59,328 INFO L168 Benchmark]: TraceAbstraction took 28386.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:59,330 INFO L168 Benchmark]: Witness Printer took 52.79 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. [2019-11-20 10:23:59,333 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 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 253.76 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.0 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 89.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.81 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 11165.96 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: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 28386.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * Witness Printer took 52.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Result: UNSAFE, OverallTime: 28.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 17.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...