./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/arctan_Pade_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/arctan_Pade_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/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 8df1e49a9eb646d8ac7821b53cc17b33c788acf9 .................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/arctan_Pade_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/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 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 0.1.23-1dbac8b [2018-11-10 12:51:37,063 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:51:37,064 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:51:37,072 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:51:37,072 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:51:37,073 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:51:37,074 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:51:37,075 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:51:37,076 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:51:37,077 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:51:37,077 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:51:37,078 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:51:37,078 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:51:37,079 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:51:37,080 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:51:37,080 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:51:37,081 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:51:37,082 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:51:37,083 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:51:37,084 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:51:37,085 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:51:37,086 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:51:37,087 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:51:37,087 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:51:37,088 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:51:37,088 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:51:37,089 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:51:37,089 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:51:37,090 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:51:37,090 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:51:37,091 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:51:37,091 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:51:37,091 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:51:37,091 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:51:37,092 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:51:37,092 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:51:37,093 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 12:51:37,102 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:51:37,102 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:51:37,103 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:51:37,103 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 12:51:37,104 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:51:37,104 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:51:37,104 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 12:51:37,104 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:51:37,104 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:51:37,104 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:51:37,104 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:51:37,104 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:51:37,105 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:51:37,105 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:51:37,105 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:51:37,105 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:51:37,105 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:51:37,105 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:51:37,105 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:51:37,106 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:51:37,106 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:51:37,106 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:51:37,106 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:51:37,106 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:51:37,106 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:51:37,106 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:51:37,106 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 12:51:37,107 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:51:37,107 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:51:37,107 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/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 -> 8df1e49a9eb646d8ac7821b53cc17b33c788acf9 [2018-11-10 12:51:37,129 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:51:37,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:51:37,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:51:37,143 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:51:37,143 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:51:37,144 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/arctan_Pade_true-unreach-call_true-termination.c [2018-11-10 12:51:37,180 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/data/cc7eed4ff/14e1f784a75f4e3a982473591f7c7d36/FLAGe75f239bb [2018-11-10 12:51:37,572 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:51:37,573 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/sv-benchmarks/c/float-benchs/arctan_Pade_true-unreach-call_true-termination.c [2018-11-10 12:51:37,576 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/data/cc7eed4ff/14e1f784a75f4e3a982473591f7c7d36/FLAGe75f239bb [2018-11-10 12:51:37,584 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/data/cc7eed4ff/14e1f784a75f4e3a982473591f7c7d36 [2018-11-10 12:51:37,586 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:51:37,587 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 12:51:37,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:51:37,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:51:37,590 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:51:37,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:51:37" (1/1) ... [2018-11-10 12:51:37,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79444f43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:37, skipping insertion in model container [2018-11-10 12:51:37,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:51:37" (1/1) ... [2018-11-10 12:51:37,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:51:37,610 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:51:37,710 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:51:37,712 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:51:37,722 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:51:37,732 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:51:37,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:37 WrapperNode [2018-11-10 12:51:37,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:51:37,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:51:37,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:51:37,733 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:51:37,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:37" (1/1) ... [2018-11-10 12:51:37,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:37" (1/1) ... [2018-11-10 12:51:37,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:37" (1/1) ... [2018-11-10 12:51:37,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:37" (1/1) ... [2018-11-10 12:51:37,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:37" (1/1) ... [2018-11-10 12:51:37,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:37" (1/1) ... [2018-11-10 12:51:37,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:37" (1/1) ... [2018-11-10 12:51:37,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:51:37,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:51:37,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:51:37,751 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:51:37,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/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 [2018-11-10 12:51:37,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:51:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:51:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 12:51:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure PADE_2_2 [2018-11-10 12:51:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_0_1 [2018-11-10 12:51:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_POS [2018-11-10 12:51:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN [2018-11-10 12:51:37,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:51:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 12:51:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-11-10 12:51:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 12:51:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 12:51:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure PADE_2_2 [2018-11-10 12:51:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_0_1 [2018-11-10 12:51:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_POS [2018-11-10 12:51:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN [2018-11-10 12:51:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:51:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:51:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:51:37,980 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:51:37,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:51:37 BoogieIcfgContainer [2018-11-10 12:51:37,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:51:37,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:51:37,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:51:37,984 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:51:37,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:51:37" (1/3) ... [2018-11-10 12:51:37,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1926adfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:51:37, skipping insertion in model container [2018-11-10 12:51:37,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:37" (2/3) ... [2018-11-10 12:51:37,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1926adfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:51:37, skipping insertion in model container [2018-11-10 12:51:37,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:51:37" (3/3) ... [2018-11-10 12:51:37,987 INFO L112 eAbstractionObserver]: Analyzing ICFG arctan_Pade_true-unreach-call_true-termination.c [2018-11-10 12:51:37,996 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:51:38,002 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:51:38,017 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:51:38,041 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:51:38,041 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:51:38,041 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:51:38,041 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:51:38,041 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:51:38,041 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:51:38,041 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:51:38,041 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:51:38,042 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:51:38,054 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-11-10 12:51:38,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-10 12:51:38,059 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:51:38,060 INFO L375 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] [2018-11-10 12:51:38,061 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:51:38,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:51:38,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1783113702, now seen corresponding path program 1 times [2018-11-10 12:51:38,067 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:51:38,067 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:51:38,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:51:38,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:51:38,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:51:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:51:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:51:38,155 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 12:51:38,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:51:38 BoogieIcfgContainer [2018-11-10 12:51:38,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:51:38,175 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:51:38,175 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:51:38,176 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:51:38,176 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:51:37" (3/4) ... [2018-11-10 12:51:38,179 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 12:51:38,179 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:51:38,180 INFO L168 Benchmark]: Toolchain (without parser) took 592.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:51:38,181 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:51:38,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.15 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 12:51:38,182 INFO L168 Benchmark]: Boogie Preprocessor took 17.54 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:51:38,182 INFO L168 Benchmark]: RCFGBuilder took 230.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -192.2 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-11-10 12:51:38,183 INFO L168 Benchmark]: TraceAbstraction took 193.38 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-10 12:51:38,183 INFO L168 Benchmark]: Witness Printer took 3.75 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. [2018-11-10 12:51:38,186 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.15 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.54 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 230.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -192.2 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 193.38 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: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.75 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, 0.1s 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 0.1.23-1dbac8b [2018-11-10 12:51:39,594 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:51:39,596 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:51:39,604 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:51:39,605 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:51:39,605 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:51:39,606 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:51:39,607 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:51:39,608 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:51:39,609 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:51:39,609 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:51:39,610 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:51:39,610 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:51:39,611 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:51:39,612 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:51:39,612 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:51:39,613 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:51:39,614 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:51:39,615 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:51:39,616 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:51:39,617 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:51:39,618 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:51:39,620 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:51:39,620 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:51:39,620 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:51:39,621 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:51:39,621 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:51:39,622 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:51:39,622 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:51:39,623 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:51:39,623 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:51:39,624 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:51:39,624 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:51:39,624 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:51:39,625 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:51:39,625 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:51:39,625 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 12:51:39,635 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:51:39,635 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:51:39,636 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:51:39,636 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 12:51:39,637 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:51:39,637 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:51:39,637 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 12:51:39,637 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:51:39,637 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:51:39,637 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:51:39,638 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:51:39,638 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:51:39,638 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:51:39,638 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:51:39,638 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 12:51:39,638 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 12:51:39,638 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:51:39,638 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:51:39,639 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:51:39,639 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:51:39,639 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:51:39,639 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:51:39,639 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:51:39,639 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:51:39,640 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:51:39,640 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:51:39,640 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:51:39,640 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 12:51:39,640 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:51:39,640 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 12:51:39,640 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 12:51:39,640 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/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 -> 8df1e49a9eb646d8ac7821b53cc17b33c788acf9 [2018-11-10 12:51:39,674 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:51:39,683 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:51:39,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:51:39,687 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:51:39,687 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:51:39,688 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/arctan_Pade_true-unreach-call_true-termination.c [2018-11-10 12:51:39,724 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/data/0342c1da4/7ee8fb95c0b24313a7e715d6e1969849/FLAGe2da08272 [2018-11-10 12:51:40,117 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:51:40,117 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/sv-benchmarks/c/float-benchs/arctan_Pade_true-unreach-call_true-termination.c [2018-11-10 12:51:40,121 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/data/0342c1da4/7ee8fb95c0b24313a7e715d6e1969849/FLAGe2da08272 [2018-11-10 12:51:40,130 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/uautomizer/data/0342c1da4/7ee8fb95c0b24313a7e715d6e1969849 [2018-11-10 12:51:40,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:51:40,133 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 12:51:40,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:51:40,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:51:40,136 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:51:40,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:51:40" (1/1) ... [2018-11-10 12:51:40,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b560f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:40, skipping insertion in model container [2018-11-10 12:51:40,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:51:40" (1/1) ... [2018-11-10 12:51:40,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:51:40,157 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:51:40,268 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:51:40,272 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:51:40,285 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:51:40,293 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:51:40,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:40 WrapperNode [2018-11-10 12:51:40,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:51:40,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:51:40,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:51:40,294 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:51:40,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:40" (1/1) ... [2018-11-10 12:51:40,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:40" (1/1) ... [2018-11-10 12:51:40,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:40" (1/1) ... [2018-11-10 12:51:40,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:40" (1/1) ... [2018-11-10 12:51:40,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:40" (1/1) ... [2018-11-10 12:51:40,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:40" (1/1) ... [2018-11-10 12:51:40,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:40" (1/1) ... [2018-11-10 12:51:40,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:51:40,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:51:40,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:51:40,314 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:51:40,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/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 [2018-11-10 12:51:40,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:51:40,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:51:40,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 12:51:40,356 INFO L138 BoogieDeclarations]: Found implementation of procedure PADE_2_2 [2018-11-10 12:51:40,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_0_1 [2018-11-10 12:51:40,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_POS [2018-11-10 12:51:40,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN [2018-11-10 12:51:40,357 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:51:40,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 12:51:40,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-11-10 12:51:40,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 12:51:40,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 12:51:40,357 INFO L130 BoogieDeclarations]: Found specification of procedure PADE_2_2 [2018-11-10 12:51:40,357 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_0_1 [2018-11-10 12:51:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_POS [2018-11-10 12:51:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN [2018-11-10 12:51:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:51:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:51:40,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:51:43,587 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:51:43,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:51:43 BoogieIcfgContainer [2018-11-10 12:51:43,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:51:43,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:51:43,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:51:43,591 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:51:43,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:51:40" (1/3) ... [2018-11-10 12:51:43,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4413477d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:51:43, skipping insertion in model container [2018-11-10 12:51:43,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:51:40" (2/3) ... [2018-11-10 12:51:43,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4413477d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:51:43, skipping insertion in model container [2018-11-10 12:51:43,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:51:43" (3/3) ... [2018-11-10 12:51:43,594 INFO L112 eAbstractionObserver]: Analyzing ICFG arctan_Pade_true-unreach-call_true-termination.c [2018-11-10 12:51:43,606 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:51:43,612 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:51:43,622 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:51:43,640 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:51:43,640 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:51:43,640 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:51:43,640 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:51:43,640 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:51:43,640 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:51:43,640 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:51:43,641 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:51:43,641 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:51:43,651 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-11-10 12:51:43,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-10 12:51:43,655 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:51:43,655 INFO L375 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] [2018-11-10 12:51:43,657 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:51:43,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:51:43,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1783113702, now seen corresponding path program 1 times [2018-11-10 12:51:43,662 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:51:43,663 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e72ea39a-f19d-4310-af85-5ccf79b58757/bin-2019/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 [2018-11-10 12:51:43,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:55:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:55:11,880 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:55:14,583 WARN L832 $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 [2018-11-10 12:55:16,930 WARN L832 $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 [2018-11-10 12:55:19,320 WARN L832 $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 [2018-11-10 12:55:21,974 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) RNE 1.0))) (and (= c_~Pi~0 ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0))) (= |c_ARCTAN_POS_#t~ret1| (let ((.cse0 (fp.div RNE .cse1 |c_ARCTAN_POS_#in~x|))) (fp.mul RNE .cse0 (fp.sub RNE .cse1 (let ((.cse2 (fp.mul RNE .cse0 .cse0))) (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.gt |c_ARCTAN_POS_#in~x| .cse1))) is different from false [2018-11-10 12:55:24,686 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) RNE 1.0))) (and (= c_~Pi~0 ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0))) (= |c_ARCTAN_POS_#res| (fp.sub RNE (fp.div RNE c_~Pi~0 ((_ to_fp 11 53) RNE 2.0)) (let ((.cse0 (fp.div RNE .cse1 |c_ARCTAN_POS_#in~x|))) (fp.mul RNE .cse0 (fp.sub RNE .cse1 (let ((.cse2 (fp.mul RNE .cse0 .cse0))) (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.gt |c_ARCTAN_POS_#in~x| .cse1))) is different from false [2018-11-10 12:55:27,483 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) RNE 1.0)) (.cse0 (fp.neg |c_ARCTAN_#in~x|))) (and (= c_~Pi~0 ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0))) (fp.gt .cse0 .cse1) (fp.lt |c_ARCTAN_#in~x| ((_ to_fp 11 53) RNE (_ bv0 32))) (= (fp.sub RNE (fp.div RNE c_~Pi~0 ((_ to_fp 11 53) RNE 2.0)) (let ((.cse2 (fp.div RNE .cse1 .cse0))) (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)))))))) |c_ARCTAN_#t~ret3|))) is different from false [2018-11-10 12:55:30,216 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 (fp.neg |c_ARCTAN_#in~x|)) (.cse1 ((_ to_fp 11 53) RNE 1.0))) (and (= c_~Pi~0 ((_ to_fp 11 53) RNE (/ 1570796326794896619.0 500000000000000000.0))) (= |c_ARCTAN_#res| (fp.neg (fp.sub RNE (fp.div RNE c_~Pi~0 ((_ to_fp 11 53) RNE 2.0)) (let ((.cse0 (fp.div RNE .cse1 .cse3))) (fp.mul RNE .cse0 (fp.sub RNE .cse1 (let ((.cse2 (fp.mul RNE .cse0 .cse0))) (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.gt .cse3 .cse1) (fp.lt |c_ARCTAN_#in~x| ((_ to_fp 11 53) RNE (_ bv0 32))))) is different from false [2018-11-10 12:55:32,977 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) RNE 179000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (.cse3 (fp.neg main_~a~0)) (.cse1 ((_ to_fp 11 53) RNE 1.0))) (and (= |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 ((.cse0 (fp.div RNE .cse1 .cse3))) (fp.mul RNE .cse0 (fp.sub RNE .cse1 (let ((.cse2 (fp.mul RNE .cse0 .cse0))) (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.leq main_~a~0 .cse4) (fp.geq main_~a~0 (fp.neg .cse4)) (fp.gt .cse3 .cse1) (fp.lt main_~a~0 ((_ to_fp 11 53) RNE (_ bv0 32)))))) is different from false [2018-11-10 12:55:35,525 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) RNE 179000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (.cse3 (fp.neg main_~a~0)) (.cse1 ((_ to_fp 11 53) RNE 1.0))) (and (= |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 ((.cse0 (fp.div RNE .cse1 .cse3))) (fp.mul RNE .cse0 (fp.sub RNE .cse1 (let ((.cse2 (fp.mul RNE .cse0 .cse0))) (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.leq main_~a~0 .cse4) (fp.geq main_~a~0 (fp.neg .cse4)) (fp.gt .cse3 .cse1) (fp.lt main_~a~0 ((_ to_fp 11 53) RNE (_ bv0 32)))))) is different from true [2018-11-10 12:55:38,249 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 179000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (.cse2 ((_ to_fp 11 53) RNE 1.0)) (.cse1 (fp.neg main_~a~0))) (and (fp.leq main_~a~0 .cse0) (fp.geq main_~a~0 (fp.neg .cse0)) (fp.gt .cse1 .cse2) (fp.lt main_~a~0 ((_ to_fp 11 53) RNE (_ bv0 32))) (= c_main_~r~0 (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 ((.cse3 (fp.div RNE .cse2 .cse1))) (fp.mul RNE .cse3 (fp.sub RNE .cse2 (let ((.cse4 (fp.mul RNE .cse3 .cse3))) (fp.div RNE .cse4 (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)) .cse4))))))))))))) is different from false [2018-11-10 12:55:40,837 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 179000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (.cse2 ((_ to_fp 11 53) RNE 1.0)) (.cse1 (fp.neg main_~a~0))) (and (fp.leq main_~a~0 .cse0) (fp.geq main_~a~0 (fp.neg .cse0)) (fp.gt .cse1 .cse2) (fp.lt main_~a~0 ((_ to_fp 11 53) RNE (_ bv0 32))) (= c_main_~r~0 (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 ((.cse3 (fp.div RNE .cse2 .cse1))) (fp.mul RNE .cse3 (fp.sub RNE .cse2 (let ((.cse4 (fp.mul RNE .cse3 .cse3))) (fp.div RNE .cse4 (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)) .cse4))))))))))))) is different from true [2018-11-10 12:56:03,601 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse5 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 1.0)) (.cse0 (fp.neg v_prenex_1)) (.cse2 ((_ to_fp 11 53) RNE 179000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))) (and (fp.gt .cse0 .cse1) (fp.geq v_prenex_1 (fp.neg .cse2)) (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 ((.cse3 (fp.div RNE .cse1 .cse0))) (fp.mul RNE .cse3 (fp.sub RNE .cse1 (let ((.cse4 (fp.mul RNE .cse3 .cse3))) (fp.div RNE .cse4 (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)) .cse4))))))))) ((_ to_fp 11 53) RNE (/ 1571.0 1000.0)))) (fp.lt v_prenex_1 ((_ to_fp 11 53) RNE (_ bv0 32))) (fp.leq v_prenex_1 .cse2)))) .cse5) (and (exists ((main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse10 ((_ to_fp 11 53) RNE 1.0)) (.cse9 (fp.neg main_~a~0))) (let ((.cse6 ((_ to_fp 11 53) RNE 179000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (.cse7 (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 ((.cse11 (fp.div RNE .cse10 .cse9))) (fp.mul RNE .cse11 (fp.sub RNE .cse10 (let ((.cse12 (fp.mul RNE .cse11 .cse11))) (fp.div RNE .cse12 (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)) .cse12)))))))))) (.cse8 ((_ to_fp 11 53) RNE (/ 1571.0 1000.0)))) (and (fp.leq main_~a~0 .cse6) (fp.leq .cse7 .cse8) (fp.geq main_~a~0 (fp.neg .cse6)) (fp.gt .cse9 .cse10) (fp.lt main_~a~0 ((_ to_fp 11 53) RNE (_ bv0 32))) (fp.geq .cse7 (fp.neg .cse8)))))) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))) (and (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse13 ((_ to_fp 11 53) RNE 179000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (.cse15 ((_ to_fp 11 53) RNE 1.0)) (.cse14 (fp.neg v_prenex_3))) (and (fp.geq v_prenex_3 (fp.neg .cse13)) (fp.gt .cse14 .cse15) (fp.leq v_prenex_3 .cse13) (fp.lt v_prenex_3 ((_ to_fp 11 53) RNE (_ bv0 32))) (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 ((.cse16 (fp.div RNE .cse15 .cse14))) (fp.mul RNE .cse16 (fp.sub RNE .cse15 (let ((.cse17 (fp.mul RNE .cse16 .cse16))) (fp.div RNE .cse17 (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)) .cse17))))))))) (fp.neg ((_ to_fp 11 53) RNE (/ 1571.0 1000.0)))))))) .cse5))) is different from false [2018-11-10 12:56:16,784 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-10 12:56:16,985 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2018-11-10 12:56:16,986 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:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.pqe.XnfUpd.isSuperfluousConjunction(XnfUpd.java:195) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.pqe.XnfUpd.tryToEliminate(XnfUpd.java:93) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.applyEliminationInner(PartialQuantifierElimination.java:507) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.applyEliminationOuter(PartialQuantifierElimination.java:475) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.applyUnconnectedParameterDeletion(PartialQuantifierElimination.java:420) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:286) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) 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:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) 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:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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) ... 41 more [2018-11-10 12:56:16,989 INFO L168 Benchmark]: Toolchain (without parser) took 276856.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 949.7 MB in the beginning and 1.0 GB in the end (delta: -79.4 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-10 12:56:16,990 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-11-10 12:56:16,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.07 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:56:16,992 INFO L168 Benchmark]: Boogie Preprocessor took 19.61 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:56:16,992 INFO L168 Benchmark]: RCFGBuilder took 3273.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -140.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-11-10 12:56:16,993 INFO L168 Benchmark]: TraceAbstraction took 273399.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2018-11-10 12:56:16,998 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 160.07 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.61 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3273.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -140.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 273399.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 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...