./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/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_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/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_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/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_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/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 0.1.23-635dfa2 [2018-12-09 02:54:11,624 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 02:54:11,625 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 02:54:11,631 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 02:54:11,631 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 02:54:11,632 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 02:54:11,632 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 02:54:11,633 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 02:54:11,634 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 02:54:11,634 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 02:54:11,635 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 02:54:11,635 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 02:54:11,635 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 02:54:11,636 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 02:54:11,636 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 02:54:11,637 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 02:54:11,637 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 02:54:11,638 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 02:54:11,639 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 02:54:11,640 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 02:54:11,640 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 02:54:11,641 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 02:54:11,642 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 02:54:11,642 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 02:54:11,642 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 02:54:11,643 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 02:54:11,643 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 02:54:11,644 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 02:54:11,644 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 02:54:11,645 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 02:54:11,645 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 02:54:11,645 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 02:54:11,645 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 02:54:11,645 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 02:54:11,646 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 02:54:11,646 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 02:54:11,646 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 02:54:11,654 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 02:54:11,654 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 02:54:11,654 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 02:54:11,654 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 02:54:11,655 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 02:54:11,655 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 02:54:11,655 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 02:54:11,655 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 02:54:11,655 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 02:54:11,655 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 02:54:11,655 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 02:54:11,655 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 02:54:11,655 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 02:54:11,655 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 02:54:11,656 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 02:54:11,656 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 02:54:11,656 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 02:54:11,656 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 02:54:11,656 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 02:54:11,656 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 02:54:11,656 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 02:54:11,656 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 02:54:11,656 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 02:54:11,656 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 02:54:11,656 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 02:54:11,656 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 02:54:11,657 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 02:54:11,657 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 02:54:11,657 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 02:54:11,657 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 02:54:11,657 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_47e598e1-b8b0-4466-981d-2461142821a2/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 [2018-12-09 02:54:11,674 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 02:54:11,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 02:54:11,683 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 02:54:11,684 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 02:54:11,684 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 02:54:11,684 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/arctan_Pade_true-unreach-call_true-termination.c [2018-12-09 02:54:11,717 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/data/716a5e6a7/94e41aeed1064a47acbd5584b7ebcb7f/FLAG14795c41b [2018-12-09 02:54:12,196 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 02:54:12,196 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/sv-benchmarks/c/float-benchs/arctan_Pade_true-unreach-call_true-termination.c [2018-12-09 02:54:12,200 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/data/716a5e6a7/94e41aeed1064a47acbd5584b7ebcb7f/FLAG14795c41b [2018-12-09 02:54:12,209 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/data/716a5e6a7/94e41aeed1064a47acbd5584b7ebcb7f [2018-12-09 02:54:12,210 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 02:54:12,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 02:54:12,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 02:54:12,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 02:54:12,214 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 02:54:12,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:54:12" (1/1) ... [2018-12-09 02:54:12,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@870cb06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:12, skipping insertion in model container [2018-12-09 02:54:12,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:54:12" (1/1) ... [2018-12-09 02:54:12,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 02:54:12,229 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 02:54:12,314 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:54:12,316 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 02:54:12,326 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:54:12,334 INFO L195 MainTranslator]: Completed translation [2018-12-09 02:54:12,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:12 WrapperNode [2018-12-09 02:54:12,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 02:54:12,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 02:54:12,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 02:54:12,335 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 02:54:12,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:12" (1/1) ... [2018-12-09 02:54:12,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:12" (1/1) ... [2018-12-09 02:54:12,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 02:54:12,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 02:54:12,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 02:54:12,348 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 02:54:12,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:12" (1/1) ... [2018-12-09 02:54:12,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:12" (1/1) ... [2018-12-09 02:54:12,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:12" (1/1) ... [2018-12-09 02:54:12,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:12" (1/1) ... [2018-12-09 02:54:12,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:12" (1/1) ... [2018-12-09 02:54:12,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:12" (1/1) ... [2018-12-09 02:54:12,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:12" (1/1) ... [2018-12-09 02:54:12,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 02:54:12,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 02:54:12,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 02:54:12,360 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 02:54:12,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/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 [2018-12-09 02:54:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN [2018-12-09 02:54:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN [2018-12-09 02:54:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 02:54:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 02:54:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 02:54:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 02:54:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_POS [2018-12-09 02:54:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_POS [2018-12-09 02:54:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 02:54:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 02:54:12,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 02:54:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 02:54:12,420 INFO L130 BoogieDeclarations]: Found specification of procedure PADE_2_2 [2018-12-09 02:54:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure PADE_2_2 [2018-12-09 02:54:12,420 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_0_1 [2018-12-09 02:54:12,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_0_1 [2018-12-09 02:54:12,525 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 02:54:12,525 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 02:54:12,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:54:12 BoogieIcfgContainer [2018-12-09 02:54:12,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 02:54:12,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 02:54:12,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 02:54:12,528 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 02:54:12,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:54:12" (1/3) ... [2018-12-09 02:54:12,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48503033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:54:12, skipping insertion in model container [2018-12-09 02:54:12,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:12" (2/3) ... [2018-12-09 02:54:12,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48503033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:54:12, skipping insertion in model container [2018-12-09 02:54:12,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:54:12" (3/3) ... [2018-12-09 02:54:12,530 INFO L112 eAbstractionObserver]: Analyzing ICFG arctan_Pade_true-unreach-call_true-termination.c [2018-12-09 02:54:12,536 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 02:54:12,540 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 02:54:12,550 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 02:54:12,568 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 02:54:12,568 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 02:54:12,568 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 02:54:12,568 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 02:54:12,568 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 02:54:12,568 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 02:54:12,568 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 02:54:12,569 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 02:54:12,569 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 02:54:12,581 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-12-09 02:54:12,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 02:54:12,585 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:54:12,585 INFO L402 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] [2018-12-09 02:54:12,587 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:54:12,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:54:12,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1783113702, now seen corresponding path program 1 times [2018-12-09 02:54:12,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 02:54:12,592 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 02:54:12,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:54:12,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:54:12,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:54:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 02:54:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 02:54:12,667 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 02:54:12,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:54:12 BoogieIcfgContainer [2018-12-09 02:54:12,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 02:54:12,684 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 02:54:12,684 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 02:54:12,684 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 02:54:12,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:54:12" (3/4) ... [2018-12-09 02:54:12,686 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 02:54:12,687 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 02:54:12,687 INFO L168 Benchmark]: Toolchain (without parser) took 476.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 961.4 MB in the beginning and 1.1 GB in the end (delta: -129.0 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2018-12-09 02:54:12,688 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:54:12,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 122.71 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 02:54:12,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.61 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:54:12,689 INFO L168 Benchmark]: Boogie Preprocessor took 11.87 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 945.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 02:54:12,690 INFO L168 Benchmark]: RCFGBuilder took 165.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-09 02:54:12,690 INFO L168 Benchmark]: TraceAbstraction took 158.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-12-09 02:54:12,690 INFO L168 Benchmark]: Witness Printer took 2.72 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. [2018-12-09 02:54:12,692 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 122.71 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.61 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.87 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 945.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 165.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 158.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.72 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 49, overapproximation of someUnaryDOUBLEoperation at line 36, overapproximation of someBinaryArithmeticDOUBLEoperation at line 30. 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] return 1. - x_2 / (3. + 9./5.*x_2); VAL [\old(x)=3, Pi=1570796326794896619/500000000000000000, x=3] [L25] RET, EXPR PADE_2_2(x) VAL [\old(x)=3, PADE_2_2(x)=4, Pi=1570796326794896619/500000000000000000, x=3] [L25] return x*PADE_2_2(x); [L30] RET, EXPR ARCTAN_0_1(1. / x) VAL [\old(x)=5, ARCTAN_0_1(1. / x)=6, Pi=1570796326794896619/500000000000000000, x=5] [L30] return Pi / 2. - ARCTAN_0_1(1. / x); [L36] RET, EXPR ARCTAN_POS(-x) VAL [\old(x)=7, ARCTAN_POS(-x)=9, Pi=1570796326794896619/500000000000000000, x=7] [L36] return -ARCTAN_POS(-x); [L47] RET, 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 0.1.23-635dfa2 [2018-12-09 02:54:14,032 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 02:54:14,033 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 02:54:14,039 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 02:54:14,039 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 02:54:14,040 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 02:54:14,040 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 02:54:14,042 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 02:54:14,043 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 02:54:14,043 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 02:54:14,044 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 02:54:14,044 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 02:54:14,045 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 02:54:14,045 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 02:54:14,046 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 02:54:14,047 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 02:54:14,047 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 02:54:14,048 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 02:54:14,049 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 02:54:14,050 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 02:54:14,051 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 02:54:14,051 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 02:54:14,052 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 02:54:14,052 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 02:54:14,052 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 02:54:14,053 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 02:54:14,053 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 02:54:14,054 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 02:54:14,054 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 02:54:14,055 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 02:54:14,055 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 02:54:14,055 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 02:54:14,056 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 02:54:14,056 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 02:54:14,057 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 02:54:14,057 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 02:54:14,057 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-09 02:54:14,067 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 02:54:14,067 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 02:54:14,067 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 02:54:14,068 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 02:54:14,068 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 02:54:14,068 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 02:54:14,069 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 02:54:14,069 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 02:54:14,069 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 02:54:14,069 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 02:54:14,069 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 02:54:14,069 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 02:54:14,070 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 02:54:14,070 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 02:54:14,070 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 02:54:14,070 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 02:54:14,070 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 02:54:14,070 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 02:54:14,070 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 02:54:14,071 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 02:54:14,071 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 02:54:14,071 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 02:54:14,071 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 02:54:14,071 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 02:54:14,071 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 02:54:14,072 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 02:54:14,072 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 02:54:14,072 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 02:54:14,072 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-09 02:54:14,072 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 02:54:14,072 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 02:54:14,072 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 02:54:14,073 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_47e598e1-b8b0-4466-981d-2461142821a2/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 [2018-12-09 02:54:14,096 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 02:54:14,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 02:54:14,106 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 02:54:14,107 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 02:54:14,107 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 02:54:14,108 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/arctan_Pade_true-unreach-call_true-termination.c [2018-12-09 02:54:14,145 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/data/2bba85593/6d8a1a251cbd4c448af515a4abdab1a1/FLAG444c8524d [2018-12-09 02:54:14,539 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 02:54:14,539 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/sv-benchmarks/c/float-benchs/arctan_Pade_true-unreach-call_true-termination.c [2018-12-09 02:54:14,543 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/data/2bba85593/6d8a1a251cbd4c448af515a4abdab1a1/FLAG444c8524d [2018-12-09 02:54:14,551 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/bin-2019/uautomizer/data/2bba85593/6d8a1a251cbd4c448af515a4abdab1a1 [2018-12-09 02:54:14,554 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 02:54:14,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 02:54:14,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 02:54:14,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 02:54:14,557 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 02:54:14,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:54:14" (1/1) ... [2018-12-09 02:54:14,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35441f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:14, skipping insertion in model container [2018-12-09 02:54:14,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:54:14" (1/1) ... [2018-12-09 02:54:14,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 02:54:14,575 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 02:54:14,676 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:54:14,679 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 02:54:14,693 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:54:14,702 INFO L195 MainTranslator]: Completed translation [2018-12-09 02:54:14,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:14 WrapperNode [2018-12-09 02:54:14,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 02:54:14,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 02:54:14,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 02:54:14,703 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 02:54:14,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:14" (1/1) ... [2018-12-09 02:54:14,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:14" (1/1) ... [2018-12-09 02:54:14,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 02:54:14,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 02:54:14,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 02:54:14,718 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 02:54:14,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:14" (1/1) ... [2018-12-09 02:54:14,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:14" (1/1) ... [2018-12-09 02:54:14,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:14" (1/1) ... [2018-12-09 02:54:14,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:14" (1/1) ... [2018-12-09 02:54:14,732 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:14" (1/1) ... [2018-12-09 02:54:14,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:14" (1/1) ... [2018-12-09 02:54:14,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:14" (1/1) ... [2018-12-09 02:54:14,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 02:54:14,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 02:54:14,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 02:54:14,737 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 02:54:14,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/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 [2018-12-09 02:54:14,800 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN [2018-12-09 02:54:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN [2018-12-09 02:54:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 02:54:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 02:54:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 02:54:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 02:54:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_POS [2018-12-09 02:54:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_POS [2018-12-09 02:54:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 02:54:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 02:54:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 02:54:14,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 02:54:14,801 INFO L130 BoogieDeclarations]: Found specification of procedure PADE_2_2 [2018-12-09 02:54:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure PADE_2_2 [2018-12-09 02:54:14,802 INFO L130 BoogieDeclarations]: Found specification of procedure ARCTAN_0_1 [2018-12-09 02:54:14,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ARCTAN_0_1 [2018-12-09 02:54:18,250 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 02:54:18,250 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 02:54:18,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:54:18 BoogieIcfgContainer [2018-12-09 02:54:18,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 02:54:18,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 02:54:18,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 02:54:18,254 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 02:54:18,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:54:14" (1/3) ... [2018-12-09 02:54:18,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616a9ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:54:18, skipping insertion in model container [2018-12-09 02:54:18,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:54:14" (2/3) ... [2018-12-09 02:54:18,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616a9ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:54:18, skipping insertion in model container [2018-12-09 02:54:18,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:54:18" (3/3) ... [2018-12-09 02:54:18,256 INFO L112 eAbstractionObserver]: Analyzing ICFG arctan_Pade_true-unreach-call_true-termination.c [2018-12-09 02:54:18,262 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 02:54:18,267 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 02:54:18,275 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 02:54:18,294 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 02:54:18,294 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 02:54:18,294 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 02:54:18,294 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 02:54:18,295 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 02:54:18,295 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 02:54:18,295 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 02:54:18,295 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 02:54:18,295 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 02:54:18,306 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-12-09 02:54:18,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 02:54:18,310 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:54:18,311 INFO L402 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] [2018-12-09 02:54:18,313 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:54:18,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:54:18,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1783113702, now seen corresponding path program 1 times [2018-12-09 02:54:18,318 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 02:54:18,319 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_47e598e1-b8b0-4466-981d-2461142821a2/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 [2018-12-09 02:54:18,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:55:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:55:04,884 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 02:55:07,489 WARN L832 $PredicateComparison]: unable to prove that (and (= c_~Pi~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0))) (= |c_PADE_2_2_#res| (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse0 (fp.mul roundNearestTiesToEven |c_PADE_2_2_#in~x| |c_PADE_2_2_#in~x|))) (fp.div roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse0))))))) is different from false [2018-12-09 02:55:09,824 WARN L832 $PredicateComparison]: unable to prove that (and (= c_ARCTAN_0_1_~x |c_ARCTAN_0_1_#in~x|) (= c_~Pi~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0))) (= (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse0 (fp.mul roundNearestTiesToEven c_ARCTAN_0_1_~x c_ARCTAN_0_1_~x))) (fp.div roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse0))))) |c_ARCTAN_0_1_#t~ret0|)) is different from false [2018-12-09 02:55:12,202 WARN L832 $PredicateComparison]: unable to prove that (and (= c_~Pi~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0))) (= (fp.mul roundNearestTiesToEven |c_ARCTAN_0_1_#in~x| (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse0 (fp.mul roundNearestTiesToEven |c_ARCTAN_0_1_#in~x| |c_ARCTAN_0_1_#in~x|))) (fp.div roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse0)))))) |c_ARCTAN_0_1_#res|)) is different from false [2018-12-09 02:55:14,850 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (fp.gt |c_ARCTAN_POS_#in~x| .cse0) (= c_~Pi~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0))) (= |c_ARCTAN_POS_#t~ret1| (let ((.cse1 (fp.div roundNearestTiesToEven .cse0 |c_ARCTAN_POS_#in~x|))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven .cse0 (let ((.cse2 (fp.mul roundNearestTiesToEven .cse1 .cse1))) (fp.div roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse2)))))))))) is different from false [2018-12-09 02:55:17,550 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (fp.gt |c_ARCTAN_POS_#in~x| .cse0) (= c_~Pi~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0))) (= |c_ARCTAN_POS_#res| (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven c_~Pi~0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (let ((.cse1 (fp.div roundNearestTiesToEven .cse0 |c_ARCTAN_POS_#in~x|))) (fp.mul roundNearestTiesToEven .cse1 (fp.sub roundNearestTiesToEven .cse0 (let ((.cse2 (fp.mul roundNearestTiesToEven .cse1 .cse1))) (fp.div roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse2))))))))))) is different from false [2018-12-09 02:55:20,273 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 (fp.neg |c_ARCTAN_#in~x|)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (= (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven c_~Pi~0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (let ((.cse0 (fp.div roundNearestTiesToEven .cse1 .cse3))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven .cse1 (let ((.cse2 (fp.mul roundNearestTiesToEven .cse0 .cse0))) (fp.div roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse2)))))))) |c_ARCTAN_#t~ret3|) (= c_~Pi~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0))) (fp.lt |c_ARCTAN_#in~x| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.gt .cse3 .cse1))) is different from false [2018-12-09 02:55:23,411 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (fp.neg |c_ARCTAN_#in~x|)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (= (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven c_~Pi~0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (let ((.cse0 (fp.div roundNearestTiesToEven .cse1 .cse3))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven .cse1 (let ((.cse2 (fp.mul roundNearestTiesToEven .cse0 .cse0))) (fp.div roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse2)))))))) |c_ARCTAN_#t~ret3|) (= c_~Pi~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0))) (fp.lt |c_ARCTAN_#in~x| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.gt .cse3 .cse1))) is different from true [2018-12-09 02:55:26,157 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 (fp.neg |c_ARCTAN_#in~x|)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (= (fp.neg (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven c_~Pi~0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (let ((.cse0 (fp.div roundNearestTiesToEven .cse1 .cse3))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven .cse1 (let ((.cse2 (fp.mul roundNearestTiesToEven .cse0 .cse0))) (fp.div roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse2))))))))) |c_ARCTAN_#res|) (= c_~Pi~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0))) (fp.lt |c_ARCTAN_#in~x| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.gt .cse3 .cse1))) is different from false [2018-12-09 02:55:28,377 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (fp.neg |c_ARCTAN_#in~x|)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (= (fp.neg (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven c_~Pi~0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (let ((.cse0 (fp.div roundNearestTiesToEven .cse1 .cse3))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven .cse1 (let ((.cse2 (fp.mul roundNearestTiesToEven .cse0 .cse0))) (fp.div roundNearestTiesToEven .cse2 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse2))))))))) |c_ARCTAN_#res|) (= c_~Pi~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0))) (fp.lt |c_ARCTAN_#in~x| ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.gt .cse3 .cse1))) is different from true [2018-12-09 02:55:31,161 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 179000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 (fp.neg main_~a~0))) (and (fp.lt main_~a~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.leq main_~a~0 .cse0) (fp.geq main_~a~0 (fp.neg .cse0)) (fp.gt .cse1 .cse2) (= (fp.neg (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (let ((.cse3 (fp.div roundNearestTiesToEven .cse2 .cse1))) (fp.mul roundNearestTiesToEven .cse3 (fp.sub roundNearestTiesToEven .cse2 (let ((.cse4 (fp.mul roundNearestTiesToEven .cse3 .cse3))) (fp.div roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse4))))))))) |c_main_#t~ret6|)))) is different from false [2018-12-09 02:55:33,748 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 179000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 (fp.neg main_~a~0))) (and (fp.lt main_~a~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.leq main_~a~0 .cse0) (fp.geq main_~a~0 (fp.neg .cse0)) (fp.gt .cse1 .cse2) (= (fp.neg (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (let ((.cse3 (fp.div roundNearestTiesToEven .cse2 .cse1))) (fp.mul roundNearestTiesToEven .cse3 (fp.sub roundNearestTiesToEven .cse2 (let ((.cse4 (fp.mul roundNearestTiesToEven .cse3 .cse3))) (fp.div roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse4))))))))) |c_main_#t~ret6|)))) is different from true [2018-12-09 02:55:36,486 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 179000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 (fp.neg main_~a~0))) (and (fp.lt main_~a~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.leq main_~a~0 .cse0) (fp.geq main_~a~0 (fp.neg .cse0)) (fp.gt .cse1 .cse2) (= (fp.neg (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (let ((.cse3 (fp.div roundNearestTiesToEven .cse2 .cse1))) (fp.mul roundNearestTiesToEven .cse3 (fp.sub roundNearestTiesToEven .cse2 (let ((.cse4 (fp.mul roundNearestTiesToEven .cse3 .cse3))) (fp.div roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse4))))))))) c_main_~r~0)))) is different from false [2018-12-09 02:55:39,093 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~a~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 179000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 (fp.neg main_~a~0))) (and (fp.lt main_~a~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.leq main_~a~0 .cse0) (fp.geq main_~a~0 (fp.neg .cse0)) (fp.gt .cse1 .cse2) (= (fp.neg (fp.sub roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1570796326794896619.0 500000000000000000.0)) ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (let ((.cse3 (fp.div roundNearestTiesToEven .cse2 .cse1))) (fp.mul roundNearestTiesToEven .cse3 (fp.sub roundNearestTiesToEven .cse2 (let ((.cse4 (fp.mul roundNearestTiesToEven .cse3 .cse3))) (fp.div roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 3.0) (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 9.0) ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) .cse4))))))))) c_main_~r~0)))) is different from true [2018-12-09 02:56:00,055 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-12-09 02:56:00,256 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2018-12-09 02:56:00,258 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.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:141) 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:823) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:767) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:339) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$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:232) 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:456) 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:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) 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 [2018-12-09 02:56:00,264 INFO L168 Benchmark]: Toolchain (without parser) took 105709.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -102.5 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-12-09 02:56:00,266 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:56:00,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.10 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 02:56:00,267 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.53 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:56:00,267 INFO L168 Benchmark]: Boogie Preprocessor took 18.58 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 02:56:00,268 INFO L168 Benchmark]: RCFGBuilder took 3514.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-09 02:56:00,268 INFO L168 Benchmark]: TraceAbstraction took 102010.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.3 MB). Peak memory consumption was 54.3 MB. Max. memory is 11.5 GB. [2018-12-09 02:56:00,271 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 148.10 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.53 ms. Allocated memory is still 1.0 GB. Free memory is still 934.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.58 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3514.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 102010.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.3 MB). Peak memory consumption was 54.3 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...