./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/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_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d89a0564bbb0fd26a33f9c676f8f302637a0505 ................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-16 00:24:20,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:24:20,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:24:21,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:24:21,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:24:21,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:24:21,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:24:21,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:24:21,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:24:21,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:24:21,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:24:21,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:24:21,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:24:21,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:24:21,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:24:21,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:24:21,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:24:21,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:24:21,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:24:21,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:24:21,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:24:21,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:24:21,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:24:21,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:24:21,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:24:21,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:24:21,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:24:21,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:24:21,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:24:21,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:24:21,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:24:21,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:24:21,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:24:21,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:24:21,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:24:21,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:24:21,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:24:21,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:24:21,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:24:21,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:24:21,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:24:21,060 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:24:21,085 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:24:21,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:24:21,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:24:21,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:24:21,088 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:24:21,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:24:21,089 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:24:21,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:24:21,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:24:21,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:24:21,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:24:21,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:24:21,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:24:21,091 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:24:21,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:24:21,092 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:24:21,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:24:21,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:24:21,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:24:21,093 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:24:21,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:24:21,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:24:21,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:24:21,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:24:21,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:24:21,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:24:21,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:24:21,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:24:21,095 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_c1f53a57-cf9a-48f5-bf58-aa7751f28183/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 [2019-11-16 00:24:21,135 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:24:21,149 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:24:21,152 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:24:21,154 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:24:21,154 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:24:21,155 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-11-16 00:24:21,214 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/data/72a96bd24/3239456428d74fa997d4eba5e79b11f3/FLAG64a2bfe7e [2019-11-16 00:24:21,618 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:24:21,618 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-11-16 00:24:21,624 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/data/72a96bd24/3239456428d74fa997d4eba5e79b11f3/FLAG64a2bfe7e [2019-11-16 00:24:22,043 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/data/72a96bd24/3239456428d74fa997d4eba5e79b11f3 [2019-11-16 00:24:22,045 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:24:22,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:24:22,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:24:22,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:24:22,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:24:22,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:24:22" (1/1) ... [2019-11-16 00:24:22,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20a2c6ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:22, skipping insertion in model container [2019-11-16 00:24:22,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:24:22" (1/1) ... [2019-11-16 00:24:22,062 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:24:22,085 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:24:22,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:24:22,341 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:24:22,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:24:22,378 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:24:22,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:22 WrapperNode [2019-11-16 00:24:22,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:24:22,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:24:22,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:24:22,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:24:22,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:22" (1/1) ... [2019-11-16 00:24:22,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:22" (1/1) ... [2019-11-16 00:24:22,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:24:22,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:24:22,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:24:22,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:24:22,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:22" (1/1) ... [2019-11-16 00:24:22,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:22" (1/1) ... [2019-11-16 00:24:22,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:22" (1/1) ... [2019-11-16 00:24:22,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:22" (1/1) ... [2019-11-16 00:24:22,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:22" (1/1) ... [2019-11-16 00:24:22,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:22" (1/1) ... [2019-11-16 00:24:22,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:22" (1/1) ... [2019-11-16 00:24:22,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:24:22,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:24:22,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:24:22,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:24:22,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:24:22,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:24:22,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:24:22,651 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:24:22,652 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-16 00:24:22,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:24:22 BoogieIcfgContainer [2019-11-16 00:24:22,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:24:22,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:24:22,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:24:22,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:24:22,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:24:22" (1/3) ... [2019-11-16 00:24:22,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cad36ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:24:22, skipping insertion in model container [2019-11-16 00:24:22,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:22" (2/3) ... [2019-11-16 00:24:22,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cad36ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:24:22, skipping insertion in model container [2019-11-16 00:24:22,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:24:22" (3/3) ... [2019-11-16 00:24:22,660 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2019-11-16 00:24:22,668 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:24:22,674 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:24:22,683 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:24:22,703 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:24:22,703 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:24:22,703 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:24:22,703 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:24:22,703 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:24:22,704 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:24:22,704 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:24:22,704 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:24:22,716 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-16 00:24:22,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-16 00:24:22,721 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:24:22,722 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:24:22,723 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:24:22,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:24:22,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1573930651, now seen corresponding path program 1 times [2019-11-16 00:24:22,733 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:24:22,734 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104250700] [2019-11-16 00:24:22,734 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:24:22,734 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:24:22,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:24:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:24:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:24:22,823 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:24:22,824 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:24:22,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:24:22 BoogieIcfgContainer [2019-11-16 00:24:22,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:24:22,839 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:24:22,839 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:24:22,840 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:24:22,840 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:24:22" (3/4) ... [2019-11-16 00:24:22,843 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-16 00:24:22,843 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:24:22,845 INFO L168 Benchmark]: Toolchain (without parser) took 797.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -199.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:24:22,845 INFO L168 Benchmark]: CDTParser took 0.25 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. [2019-11-16 00:24:22,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 948.8 MB in the beginning and 1.2 GB in the end (delta: -234.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-16 00:24:22,847 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.61 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. [2019-11-16 00:24:22,847 INFO L168 Benchmark]: Boogie Preprocessor took 24.29 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. [2019-11-16 00:24:22,848 INFO L168 Benchmark]: RCFGBuilder took 205.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:24:22,848 INFO L168 Benchmark]: TraceAbstraction took 185.42 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:24:22,849 INFO L168 Benchmark]: Witness Printer took 3.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:24:22,852 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 332.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.4 MB). Free memory was 948.8 MB in the beginning and 1.2 GB in the end (delta: -234.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.61 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 24.29 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. * RCFGBuilder took 205.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 185.42 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 21. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] float x = IN - f(IN)/fp(IN); [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-16 00:24:25,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:24:25,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:24:25,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:24:25,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:24:25,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:24:25,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:24:25,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:24:25,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:24:25,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:24:25,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:24:25,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:24:25,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:24:25,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:24:25,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:24:25,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:24:25,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:24:25,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:24:25,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:24:25,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:24:25,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:24:25,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:24:25,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:24:25,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:24:25,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:24:25,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:24:25,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:24:25,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:24:25,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:24:25,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:24:25,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:24:25,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:24:25,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:24:25,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:24:25,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:24:25,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:24:25,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:24:25,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:24:25,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:24:25,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:24:25,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:24:25,109 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-16 00:24:25,123 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:24:25,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:24:25,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:24:25,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:24:25,125 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:24:25,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:24:25,125 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:24:25,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:24:25,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:24:25,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:24:25,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:24:25,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:24:25,126 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-16 00:24:25,127 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-16 00:24:25,127 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:24:25,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:24:25,128 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:24:25,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:24:25,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:24:25,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:24:25,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:24:25,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:24:25,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:24:25,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:24:25,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:24:25,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:24:25,131 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-16 00:24:25,131 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-16 00:24:25,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:24:25,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-16 00:24:25,132 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_c1f53a57-cf9a-48f5-bf58-aa7751f28183/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 [2019-11-16 00:24:25,182 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:24:25,195 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:24:25,199 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:24:25,201 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:24:25,202 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:24:25,203 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-11-16 00:24:25,260 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/data/e5eb40617/6b3c9f8d5dc443e3b98a69173aa56d90/FLAG2aed39c3b [2019-11-16 00:24:25,691 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:24:25,692 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2019-11-16 00:24:25,698 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/data/e5eb40617/6b3c9f8d5dc443e3b98a69173aa56d90/FLAG2aed39c3b [2019-11-16 00:24:26,135 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/data/e5eb40617/6b3c9f8d5dc443e3b98a69173aa56d90 [2019-11-16 00:24:26,140 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:24:26,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:24:26,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:24:26,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:24:26,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:24:26,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:24:26" (1/1) ... [2019-11-16 00:24:26,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ebcc1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:26, skipping insertion in model container [2019-11-16 00:24:26,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:24:26" (1/1) ... [2019-11-16 00:24:26,160 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:24:26,178 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:24:26,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:24:26,360 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:24:26,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:24:26,392 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:24:26,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:26 WrapperNode [2019-11-16 00:24:26,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:24:26,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:24:26,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:24:26,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:24:26,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:26" (1/1) ... [2019-11-16 00:24:26,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:26" (1/1) ... [2019-11-16 00:24:26,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:24:26,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:24:26,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:24:26,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:24:26,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:26" (1/1) ... [2019-11-16 00:24:26,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:26" (1/1) ... [2019-11-16 00:24:26,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:26" (1/1) ... [2019-11-16 00:24:26,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:26" (1/1) ... [2019-11-16 00:24:26,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:26" (1/1) ... [2019-11-16 00:24:26,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:26" (1/1) ... [2019-11-16 00:24:26,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:26" (1/1) ... [2019-11-16 00:24:26,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:24:26,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:24:26,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:24:26,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:24:26,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:24:26,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:24:26,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:24:37,265 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:24:37,266 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-16 00:24:37,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:24:37 BoogieIcfgContainer [2019-11-16 00:24:37,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:24:37,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:24:37,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:24:37,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:24:37,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:24:26" (1/3) ... [2019-11-16 00:24:37,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3cd219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:24:37, skipping insertion in model container [2019-11-16 00:24:37,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:24:26" (2/3) ... [2019-11-16 00:24:37,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e3cd219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:24:37, skipping insertion in model container [2019-11-16 00:24:37,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:24:37" (3/3) ... [2019-11-16 00:24:37,284 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2019-11-16 00:24:37,294 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:24:37,309 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:24:37,320 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:24:37,353 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:24:37,359 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:24:37,359 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:24:37,360 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:24:37,360 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:24:37,360 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:24:37,360 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:24:37,361 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:24:37,374 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-16 00:24:37,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-16 00:24:37,381 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:24:37,382 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:24:37,383 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:24:37,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:24:37,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1573930651, now seen corresponding path program 1 times [2019-11-16 00:24:37,400 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-16 00:24:37,400 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985653499] [2019-11-16 00:24:37,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-16 00:24:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:25:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:25:03,217 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-16 00:25:03,217 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:25:03,418 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-16 00:25:03,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:25:03 BoogieIcfgContainer [2019-11-16 00:25:03,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:25:03,446 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:25:03,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:25:03,446 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:25:03,447 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:24:37" (3/4) ... [2019-11-16 00:25:03,449 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-16 00:25:03,493 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c1f53a57-cf9a-48f5-bf58-aa7751f28183/bin/uautomizer/witness.graphml [2019-11-16 00:25:03,493 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:25:03,495 INFO L168 Benchmark]: Toolchain (without parser) took 37353.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -100.3 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:25:03,495 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:25:03,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.50 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 940.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:25:03,497 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:25:03,497 INFO L168 Benchmark]: Boogie Preprocessor took 27.74 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:25:03,498 INFO L168 Benchmark]: RCFGBuilder took 10744.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:25:03,499 INFO L168 Benchmark]: TraceAbstraction took 26177.49 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:25:03,499 INFO L168 Benchmark]: Witness Printer took 47.20 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:25:03,502 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 251.50 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 940.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 100.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -161.7 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.74 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10744.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26177.49 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 47.20 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: 6.8 MB). Peak memory consumption was 6.8 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: 26.0s, 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, 16.3s 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...