/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-benchs/arctan_Pade_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-benchs/arctan_Pade_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8df1e49a9eb646d8ac7821b53cc17b33c788acf9 .......................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-benchs/arctan_Pade_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8df1e49a9eb646d8ac7821b53cc17b33c788acf9 ........................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 13:50:33,114 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:50:33,116 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:50:33,134 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:50:33,135 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:50:33,136 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:50:33,137 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:50:33,140 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:50:33,143 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:50:33,144 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:50:33,150 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:50:33,153 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:50:33,155 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:50:33,156 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:50:33,161 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:50:33,162 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:50:33,163 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:50:33,167 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:50:33,172 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:50:33,175 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:50:33,176 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:50:33,178 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:50:33,184 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:50:33,185 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:50:33,185 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:50:33,186 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:50:33,187 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:50:33,188 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:50:33,189 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:50:33,192 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:50:33,192 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:50:33,194 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:50:33,194 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:50:33,195 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:50:33,196 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:50:33,196 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:50:33,197 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 13:50:33,227 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:50:33,227 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:50:33,228 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:50:33,228 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:50:33,230 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:50:33,230 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:50:33,231 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:50:33,231 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:50:33,231 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:50:33,231 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 13:50:33,233 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:50:33,233 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:50:33,233 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:50:33,233 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:50:33,233 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:50:33,234 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:50:33,234 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:50:33,234 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:50:33,234 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:50:33,234 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:50:33,235 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:50:33,235 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:50:33,235 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:50:33,235 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:50:33,235 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:50:33,235 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:50:33,236 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 13:50:33,236 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:50:33,236 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 13:50:33,236 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8df1e49a9eb646d8ac7821b53cc17b33c788acf9 [2018-09-20 13:50:33,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:50:33,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:50:33,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:50:33,350 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:50:33,350 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:50:33,351 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/arctan_Pade_true-unreach-call_true-termination.c [2018-09-20 13:50:33,741 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0636b11/1a5c9e514d6043028b39aea900663cef/FLAG9a6472ef5 [2018-09-20 13:50:33,911 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:50:33,911 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/arctan_Pade_true-unreach-call_true-termination.c [2018-09-20 13:50:33,920 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0636b11/1a5c9e514d6043028b39aea900663cef/FLAG9a6472ef5 [2018-09-20 13:50:33,940 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0636b11/1a5c9e514d6043028b39aea900663cef [2018-09-20 13:50:33,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:50:33,949 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:50:33,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:50:33,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:50:33,958 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:50:33,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:50:33" (1/1) ... [2018-09-20 13:50:33,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495d6536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:33, skipping insertion in model container [2018-09-20 13:50:33,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:50:33" (1/1) ... [2018-09-20 13:50:33,977 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:50:34,204 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:50:34,223 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:50:34,232 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:50:34,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:34 WrapperNode [2018-09-20 13:50:34,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:50:34,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:50:34,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:50:34,248 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:50:34,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:34" (1/1) ... [2018-09-20 13:50:34,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:34" (1/1) ... [2018-09-20 13:50:34,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:34" (1/1) ... [2018-09-20 13:50:34,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:34" (1/1) ... [2018-09-20 13:50:34,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:34" (1/1) ... [2018-09-20 13:50:34,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:34" (1/1) ... [2018-09-20 13:50:34,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:34" (1/1) ... [2018-09-20 13:50:34,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:50:34,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:50:34,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:50:34,282 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:50:34,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 13:50:34,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:50:34,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:50:34,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 13:50:34,357 INFO L138 BoogieDeclarations]: Found implementation of procedure PADE_2_2 [2018-09-20 13:50:34,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_0_1 [2018-09-20 13:50:34,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_POS [2018-09-20 13:50:34,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN [2018-09-20 13:50:34,357 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:50:34,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:50:34,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 13:50:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:50:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 13:50:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure PADE_2_2 [2018-09-20 13:50:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_0_1 [2018-09-20 13:50:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_POS [2018-09-20 13:50:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN [2018-09-20 13:50:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:50:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:50:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:50:34,820 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:50:34,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:50:34 BoogieIcfgContainer [2018-09-20 13:50:34,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:50:34,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:50:34,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:50:34,826 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:50:34,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:50:33" (1/3) ... [2018-09-20 13:50:34,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a9ce61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:50:34, skipping insertion in model container [2018-09-20 13:50:34,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:34" (2/3) ... [2018-09-20 13:50:34,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a9ce61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:50:34, skipping insertion in model container [2018-09-20 13:50:34,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:50:34" (3/3) ... [2018-09-20 13:50:34,831 INFO L112 eAbstractionObserver]: Analyzing ICFG arctan_Pade_true-unreach-call_true-termination.c [2018-09-20 13:50:34,841 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:50:34,849 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:50:34,901 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:50:34,902 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:50:34,902 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:50:34,902 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:50:34,902 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:50:34,903 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:50:34,903 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:50:34,903 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:50:34,903 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:50:34,925 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-09-20 13:50:34,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-20 13:50:34,933 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:50:34,934 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:50:34,937 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:50:34,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1783113702, now seen corresponding path program 1 times [2018-09-20 13:50:34,945 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 13:50:34,946 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 13:50:34,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:50:34,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:50:34,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:50:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:50:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:50:35,088 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:50:35,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:50:35 BoogieIcfgContainer [2018-09-20 13:50:35,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:50:35,119 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:50:35,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:50:35,120 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:50:35,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:50:34" (3/4) ... [2018-09-20 13:50:35,125 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 13:50:35,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:50:35,126 INFO L168 Benchmark]: Toolchain (without parser) took 1179.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:50:35,128 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:50:35,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.58 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:50:35,130 INFO L168 Benchmark]: Boogie Preprocessor took 33.30 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:50:35,131 INFO L168 Benchmark]: RCFGBuilder took 539.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-09-20 13:50:35,132 INFO L168 Benchmark]: TraceAbstraction took 296.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2018-09-20 13:50:35,133 INFO L168 Benchmark]: Witness Printer took 5.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:50:35,138 INFO L336 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.58 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.30 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 539.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 296.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 30, overapproximation of someBinaryArithmeticDOUBLEoperation at line 30, overapproximation of someUnaryDOUBLEoperation at line 36. Possible FailurePath: [L15] const double Pi=3.141592653589793238; VAL [\old(Pi)=8, Pi=1570796326794896619/500000000000000000] [L42] double a, r; [L44] a = __VERIFIER_nondet_double() [L47] CALL, EXPR ARCTAN(a) VAL [\old(x)=7, Pi=1570796326794896619/500000000000000000] [L36] COND TRUE x < 0 VAL [\old(x)=7, Pi=1570796326794896619/500000000000000000, x=7] [L36] CALL, EXPR ARCTAN_POS(-x) VAL [Pi=1570796326794896619/500000000000000000] [L30] COND TRUE x > 1. VAL [\old(x)=5, Pi=1570796326794896619/500000000000000000, x=5] [L30] CALL, EXPR ARCTAN_0_1(1. / x) VAL [Pi=1570796326794896619/500000000000000000] [L25] CALL, EXPR PADE_2_2(x) VAL [\old(x)=3, Pi=1570796326794896619/500000000000000000] [L19] double x_2 = x*x; [L20] RET return 1. - x_2 / (3. + 9./5.*x_2); VAL [\old(x)=3, Pi=1570796326794896619/500000000000000000, x=3] [L25] EXPR PADE_2_2(x) VAL [\old(x)=3, PADE_2_2(x)=4, Pi=1570796326794896619/500000000000000000, x=3] [L25] RET return x*PADE_2_2(x); [L30] EXPR ARCTAN_0_1(1. / x) VAL [\old(x)=5, ARCTAN_0_1(1. / x)=6, Pi=1570796326794896619/500000000000000000, x=5] [L30] RET return Pi / 2. - ARCTAN_0_1(1. / x); [L36] EXPR ARCTAN_POS(-x) VAL [\old(x)=7, ARCTAN_POS(-x)=9, Pi=1570796326794896619/500000000000000000, x=7] [L36] RET return -ARCTAN_POS(-x); [L47] EXPR ARCTAN(a) VAL [a=7, ARCTAN(a)=2, Pi=1570796326794896619/500000000000000000] [L47] r = ARCTAN(a) [L49] CALL __VERIFIER_assert(r >= -1.571 && r <= 1.571) VAL [\old(cond)=0, Pi=1570796326794896619/500000000000000000] [L12] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, Pi=1570796326794896619/500000000000000000] [L12] __VERIFIER_error() VAL [\old(cond)=0, cond=0, Pi=1570796326794896619/500000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 44 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-40ef509 [2018-09-20 13:50:37,697 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:50:37,699 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:50:37,715 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:50:37,715 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:50:37,716 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:50:37,718 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:50:37,720 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:50:37,723 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:50:37,724 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:50:37,725 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:50:37,725 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:50:37,726 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:50:37,727 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:50:37,732 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:50:37,733 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:50:37,736 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:50:37,741 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:50:37,744 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:50:37,747 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:50:37,751 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:50:37,753 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:50:37,758 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:50:37,761 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:50:37,761 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:50:37,763 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:50:37,764 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:50:37,767 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:50:37,769 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:50:37,772 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:50:37,773 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:50:37,774 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:50:37,775 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:50:37,775 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:50:37,778 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:50:37,779 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:50:37,780 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 13:50:37,809 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:50:37,809 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:50:37,810 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:50:37,811 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:50:37,812 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:50:37,813 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:50:37,814 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:50:37,814 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:50:37,814 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:50:37,814 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:50:37,814 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:50:37,815 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:50:37,815 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:50:37,815 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:50:37,815 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 13:50:37,815 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 13:50:37,818 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:50:37,818 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:50:37,819 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:50:37,819 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:50:37,819 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:50:37,820 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:50:37,820 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:50:37,820 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:50:37,820 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:50:37,820 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:50:37,822 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:50:37,822 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 13:50:37,822 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:50:37,822 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 13:50:37,823 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 13:50:37,823 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 8df1e49a9eb646d8ac7821b53cc17b33c788acf9 [2018-09-20 13:50:37,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:50:37,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:50:37,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:50:37,932 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:50:37,932 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:50:37,933 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/arctan_Pade_true-unreach-call_true-termination.c [2018-09-20 13:50:38,294 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1928519bb/ac3471a614fd4b1ab7551ede79fa152c/FLAG69eb3c868 [2018-09-20 13:50:38,466 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:50:38,467 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/arctan_Pade_true-unreach-call_true-termination.c [2018-09-20 13:50:38,476 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1928519bb/ac3471a614fd4b1ab7551ede79fa152c/FLAG69eb3c868 [2018-09-20 13:50:38,494 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1928519bb/ac3471a614fd4b1ab7551ede79fa152c [2018-09-20 13:50:38,499 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:50:38,503 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:50:38,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:50:38,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:50:38,512 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:50:38,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:50:38" (1/1) ... [2018-09-20 13:50:38,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48983853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:38, skipping insertion in model container [2018-09-20 13:50:38,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:50:38" (1/1) ... [2018-09-20 13:50:38,530 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:50:38,801 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:50:38,824 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:50:38,834 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:50:38,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:38 WrapperNode [2018-09-20 13:50:38,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:50:38,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:50:38,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:50:38,865 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:50:38,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:38" (1/1) ... [2018-09-20 13:50:38,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:38" (1/1) ... [2018-09-20 13:50:38,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:38" (1/1) ... [2018-09-20 13:50:38,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:38" (1/1) ... [2018-09-20 13:50:38,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:38" (1/1) ... [2018-09-20 13:50:38,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:38" (1/1) ... [2018-09-20 13:50:38,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:38" (1/1) ... [2018-09-20 13:50:38,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:50:38,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:50:38,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:50:38,925 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:50:38,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 13:50:39,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:50:39,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:50:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 13:50:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure PADE_2_2 [2018-09-20 13:50:39,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_0_1 [2018-09-20 13:50:39,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_POS [2018-09-20 13:50:39,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN [2018-09-20 13:50:39,012 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:50:39,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:50:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-20 13:50:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-20 13:50:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 13:50:39,013 INFO L130 BoogieDeclarations]: Found specification of procedure PADE_2_2 [2018-09-20 13:50:39,016 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_0_1 [2018-09-20 13:50:39,017 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_POS [2018-09-20 13:50:39,017 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN [2018-09-20 13:50:39,017 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:50:39,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:50:39,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:50:43,282 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:50:43,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:50:43 BoogieIcfgContainer [2018-09-20 13:50:43,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:50:43,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:50:43,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:50:43,289 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:50:43,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:50:38" (1/3) ... [2018-09-20 13:50:43,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420a4156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:50:43, skipping insertion in model container [2018-09-20 13:50:43,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:38" (2/3) ... [2018-09-20 13:50:43,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420a4156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:50:43, skipping insertion in model container [2018-09-20 13:50:43,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:50:43" (3/3) ... [2018-09-20 13:50:43,294 INFO L112 eAbstractionObserver]: Analyzing ICFG arctan_Pade_true-unreach-call_true-termination.c [2018-09-20 13:50:43,304 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:50:43,314 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:50:43,367 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:50:43,368 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:50:43,368 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:50:43,368 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:50:43,368 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:50:43,368 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:50:43,369 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:50:43,369 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:50:43,369 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:50:43,391 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-09-20 13:50:43,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-20 13:50:43,399 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:50:43,400 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:50:43,403 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:50:43,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1783113702, now seen corresponding path program 1 times [2018-09-20 13:50:43,415 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:50:43,415 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 13:50:43,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:55:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 13:55:41,017 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 13:55:43,651 WARN L797 $PredicateComparison]: unable to prove that (and (= c_~Pi~0 ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0))) (= |c_PADE_2_2_#res| (fp.sub RNE ((_ to_fp 11 53) RNE 1.0) (let ((.cse0 (fp.mul RNE |c_PADE_2_2_#in~x| |c_PADE_2_2_#in~x|))) (fp.div RNE .cse0 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse0))))))) is different from false [2018-09-20 13:55:46,125 WARN L797 $PredicateComparison]: unable to prove that (and (= c_~Pi~0 ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0))) (= c_ARCTAN_0_1_~x |c_ARCTAN_0_1_#in~x|) (= (fp.sub RNE ((_ to_fp 11 53) RNE 1.0) (let ((.cse0 (fp.mul RNE c_ARCTAN_0_1_~x c_ARCTAN_0_1_~x))) (fp.div RNE .cse0 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse0))))) |c_ARCTAN_0_1_#t~ret0|)) is different from false [2018-09-20 13:55:48,641 WARN L797 $PredicateComparison]: unable to prove that (and (= c_~Pi~0 ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0))) (= (fp.mul RNE |c_ARCTAN_0_1_#in~x| (fp.sub RNE ((_ to_fp 11 53) RNE 1.0) (let ((.cse0 (fp.mul RNE |c_ARCTAN_0_1_#in~x| |c_ARCTAN_0_1_#in~x|))) (fp.div RNE .cse0 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse0)))))) |c_ARCTAN_0_1_#res|)) is different from false [2018-09-20 13:55:51,511 WARN L797 $PredicateComparison]: unable to prove that (and (= c_~Pi~0 ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0))) (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.gt ARCTAN_POS_~x .cse0) (= |c_ARCTAN_POS_#t~ret1| (let ((.cse1 (fp.div RNE .cse0 ARCTAN_POS_~x))) (fp.mul RNE .cse1 (fp.sub RNE .cse0 (let ((.cse2 (fp.mul RNE .cse1 .cse1))) (fp.div RNE .cse2 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse2)))))))))))) is different from false [2018-09-20 13:55:54,397 WARN L797 $PredicateComparison]: unable to prove that (and (= c_~Pi~0 ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0))) (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.gt ARCTAN_POS_~x .cse0) (= |c_ARCTAN_POS_#res| (fp.sub RNE (fp.div RNE c_~Pi~0 ((_ to_fp 11 53) RNE 2.0)) (let ((.cse1 (fp.div RNE .cse0 ARCTAN_POS_~x))) (fp.mul RNE .cse1 (fp.sub RNE .cse0 (let ((.cse2 (fp.mul RNE .cse1 .cse1))) (fp.div RNE .cse2 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse2))))))))))))) is different from false [2018-09-20 13:55:57,342 WARN L797 $PredicateComparison]: unable to prove that (and (= c_~Pi~0 ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0))) (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.gt ARCTAN_POS_~x .cse0) (= |c_ARCTAN_#t~ret3| (fp.sub RNE (fp.div RNE c_~Pi~0 ((_ to_fp 11 53) RNE 2.0)) (let ((.cse1 (fp.div RNE .cse0 ARCTAN_POS_~x))) (fp.mul RNE .cse1 (fp.sub RNE .cse0 (let ((.cse2 (fp.mul RNE .cse1 .cse1))) (fp.div RNE .cse2 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse2))))))))))))) is different from false [2018-09-20 13:56:00,362 WARN L797 $PredicateComparison]: unable to prove that (and (= c_~Pi~0 ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0))) (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.gt ARCTAN_POS_~x .cse0) (= (fp.neg (fp.sub RNE (fp.div RNE c_~Pi~0 ((_ to_fp 11 53) RNE 2.0)) (let ((.cse1 (fp.div RNE .cse0 ARCTAN_POS_~x))) (fp.mul RNE .cse1 (fp.sub RNE .cse0 (let ((.cse2 (fp.mul RNE .cse1 .cse1))) (fp.div RNE .cse2 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse2))))))))) |c_ARCTAN_#res|))))) is different from false [2018-09-20 13:56:03,292 WARN L797 $PredicateComparison]: unable to prove that (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.gt ARCTAN_POS_~x .cse0) (= |c_main_#t~ret6| (fp.neg (fp.sub RNE (fp.div RNE ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) RNE 2.0)) (let ((.cse1 (fp.div RNE .cse0 ARCTAN_POS_~x))) (fp.mul RNE .cse1 (fp.sub RNE .cse0 (let ((.cse2 (fp.mul RNE .cse1 .cse1))) (fp.div RNE .cse2 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse2))))))))))))) is different from false [2018-09-20 13:56:05,983 WARN L819 $PredicateComparison]: unable to prove that (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.gt ARCTAN_POS_~x .cse0) (= |c_main_#t~ret6| (fp.neg (fp.sub RNE (fp.div RNE ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) RNE 2.0)) (let ((.cse1 (fp.div RNE .cse0 ARCTAN_POS_~x))) (fp.mul RNE .cse1 (fp.sub RNE .cse0 (let ((.cse2 (fp.mul RNE .cse1 .cse1))) (fp.div RNE .cse2 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse2))))))))))))) is different from true [2018-09-20 13:56:08,931 WARN L797 $PredicateComparison]: unable to prove that (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.gt ARCTAN_POS_~x .cse0) (= (fp.neg (fp.sub RNE (fp.div RNE ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) RNE 2.0)) (let ((.cse1 (fp.div RNE .cse0 ARCTAN_POS_~x))) (fp.mul RNE .cse1 (fp.sub RNE .cse0 (let ((.cse2 (fp.mul RNE .cse1 .cse1))) (fp.div RNE .cse2 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse2))))))))) c_main_~r~0)))) is different from false [2018-09-20 13:56:11,662 WARN L819 $PredicateComparison]: unable to prove that (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.gt ARCTAN_POS_~x .cse0) (= (fp.neg (fp.sub RNE (fp.div RNE ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) RNE 2.0)) (let ((.cse1 (fp.div RNE .cse0 ARCTAN_POS_~x))) (fp.mul RNE .cse1 (fp.sub RNE .cse0 (let ((.cse2 (fp.mul RNE .cse1 .cse1))) (fp.div RNE .cse2 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse2))))))))) c_main_~r~0)))) is different from true [2018-09-20 13:56:35,558 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse3 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 1.0))) (and (fp.gt v_prenex_1 .cse0) (not (fp.geq (fp.neg (fp.sub RNE (fp.div RNE ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) RNE 2.0)) (let ((.cse1 (fp.div RNE .cse0 v_prenex_1))) (fp.mul RNE .cse1 (fp.sub RNE .cse0 (let ((.cse2 (fp.mul RNE .cse1 .cse1))) (fp.div RNE .cse2 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse2))))))))) (fp.neg ((_ to_fp 11 53) RNE (/ 1571.0 1000.0)))))))) .cse3) (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse6 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse4 (fp.neg (fp.sub RNE (fp.div RNE ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) RNE 2.0)) (let ((.cse7 (fp.div RNE .cse6 v_prenex_3))) (fp.mul RNE .cse7 (fp.sub RNE .cse6 (let ((.cse8 (fp.mul RNE .cse7 .cse7))) (fp.div RNE .cse8 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse8)))))))))) (.cse5 ((_ to_fp 11 53) RNE (/ 1571.0 1000.0)))) (and (fp.geq .cse4 (fp.neg .cse5)) (fp.leq .cse4 .cse5) (fp.gt v_prenex_3 .cse6)))))) (and (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse9 ((_ to_fp 11 53) RNE 1.0))) (and (fp.gt ARCTAN_POS_~x .cse9) (not (fp.leq (fp.neg (fp.sub RNE (fp.div RNE ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) RNE 2.0)) (let ((.cse10 (fp.div RNE .cse9 ARCTAN_POS_~x))) (fp.mul RNE .cse10 (fp.sub RNE .cse9 (let ((.cse11 (fp.mul RNE .cse10 .cse10))) (fp.div RNE .cse11 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse11))))))))) ((_ to_fp 11 53) RNE (/ 1571.0 1000.0))))))) .cse3))) is different from false [2018-09-20 13:56:56,091 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 1.0))) (and (fp.gt v_prenex_1 .cse1) (not (fp.geq (fp.neg (fp.sub RNE (fp.div RNE ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) RNE 2.0)) (let ((.cse2 (fp.div RNE .cse1 v_prenex_1))) (fp.mul RNE .cse2 (fp.sub RNE .cse1 (let ((.cse3 (fp.mul RNE .cse2 .cse2))) (fp.div RNE .cse3 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse3))))))))) (fp.neg ((_ to_fp 11 53) RNE (/ 1571.0 1000.0))))))))) (and (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse6 ((_ to_fp 11 53) RNE 1.0))) (let ((.cse4 (fp.neg (fp.sub RNE (fp.div RNE ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) RNE 2.0)) (let ((.cse7 (fp.div RNE .cse6 v_prenex_3))) (fp.mul RNE .cse7 (fp.sub RNE .cse6 (let ((.cse8 (fp.mul RNE .cse7 .cse7))) (fp.div RNE .cse8 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse8)))))))))) (.cse5 ((_ to_fp 11 53) RNE (/ 1571.0 1000.0)))) (and (fp.geq .cse4 (fp.neg .cse5)) (fp.leq .cse4 .cse5) (fp.gt v_prenex_3 .cse6))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and .cse0 (exists ((ARCTAN_POS_~x (_ FloatingPoint 11 53))) (let ((.cse9 ((_ to_fp 11 53) RNE 1.0))) (and (fp.gt ARCTAN_POS_~x .cse9) (not (fp.leq (fp.neg (fp.sub RNE (fp.div RNE ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) RNE 2.0)) (let ((.cse10 (fp.div RNE .cse9 ARCTAN_POS_~x))) (fp.mul RNE .cse10 (fp.sub RNE .cse9 (let ((.cse11 (fp.mul RNE .cse10 .cse10))) (fp.div RNE .cse11 (fp.add RNE ((_ to_fp 11 53) RNE 3.0) (fp.mul RNE (fp.div RNE ((_ to_fp 11 53) RNE 9.0) ((_ to_fp 11 53) RNE 5.0)) .cse11))))))))) ((_ to_fp 11 53) RNE (/ 1571.0 1000.0)))))))))) is different from false [2018-09-20 13:57:09,164 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-09-20 13:57:09,366 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2018-09-20 13:57:09,367 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:140) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:788) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:732) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:338) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:430) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 39 more [2018-09-20 13:57:09,377 INFO L168 Benchmark]: Toolchain (without parser) took 390877.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -119.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-09-20 13:57:09,380 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:57:09,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.86 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:57:09,383 INFO L168 Benchmark]: Boogie Preprocessor took 59.52 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:57:09,383 INFO L168 Benchmark]: RCFGBuilder took 4358.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-09-20 13:57:09,386 INFO L168 Benchmark]: TraceAbstraction took 386091.84 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: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 11.5 GB. [2018-09-20 13:57:09,394 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 360.86 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.52 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 4358.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 386091.84 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: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...