./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/cos_polynomial_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_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cos_polynomial_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2507b56afd4c82d08388837f279920ee2254841f ............................................................................................................................................................................................................................................................................. 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_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cos_polynomial_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2507b56afd4c82d08388837f279920ee2254841f ............................................................................................................................................................................................................................................................... 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. No stderr output. --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 12:57:32,233 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:57:32,234 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:57:32,244 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:57:32,244 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:57:32,245 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:57:32,246 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:57:32,247 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:57:32,249 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:57:32,249 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:57:32,250 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:57:32,250 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:57:32,251 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:57:32,252 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:57:32,252 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:57:32,253 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:57:32,253 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:57:32,254 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:57:32,256 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:57:32,257 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:57:32,258 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:57:32,258 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:57:32,260 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:57:32,261 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:57:32,261 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:57:32,262 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:57:32,262 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:57:32,263 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:57:32,264 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:57:32,264 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:57:32,265 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:57:32,265 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:57:32,265 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:57:32,266 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:57:32,266 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:57:32,267 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:57:32,267 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 12:57:32,275 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:57:32,276 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:57:32,276 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:57:32,277 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:57:32,277 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:57:32,277 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:57:32,277 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 12:57:32,277 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:57:32,277 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 12:57:32,278 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 12:57:32,278 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:57:32,278 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:57:32,278 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:57:32,279 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:57:32,279 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:57:32,279 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:57:32,279 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:57:32,279 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:57:32,279 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:57:32,280 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:57:32,280 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:57:32,280 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:57:32,280 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:57:32,280 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:57:32,280 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:57:32,280 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:57:32,281 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:57:32,281 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:57:32,281 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:57:32,281 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:57:32,281 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 12:57:32,281 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:57:32,282 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:57:32,282 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 12:57:32,282 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan 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 -> Taipan 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 -> 2507b56afd4c82d08388837f279920ee2254841f [2018-11-10 12:57:32,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:57:32,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:57:32,321 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:57:32,323 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:57:32,323 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:57:32,323 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/cos_polynomial_true-unreach-call_true-termination.c [2018-11-10 12:57:32,366 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/data/9919a1c78/3b5159343af64b7dbf5bf25aa42e2e21/FLAGfc115855a [2018-11-10 12:57:32,694 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:57:32,695 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/sv-benchmarks/c/float-benchs/cos_polynomial_true-unreach-call_true-termination.c [2018-11-10 12:57:32,700 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/data/9919a1c78/3b5159343af64b7dbf5bf25aa42e2e21/FLAGfc115855a [2018-11-10 12:57:32,709 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/data/9919a1c78/3b5159343af64b7dbf5bf25aa42e2e21 [2018-11-10 12:57:32,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:57:32,713 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:57:32,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:57:32,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:57:32,716 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:57:32,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:57:32" (1/1) ... [2018-11-10 12:57:32,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cd2abbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:32, skipping insertion in model container [2018-11-10 12:57:32,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:57:32" (1/1) ... [2018-11-10 12:57:32,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:57:32,742 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:57:32,851 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:57:32,855 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:57:32,868 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:57:32,877 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:57:32,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:32 WrapperNode [2018-11-10 12:57:32,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:57:32,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:57:32,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:57:32,879 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:57:32,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:32" (1/1) ... [2018-11-10 12:57:32,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:32" (1/1) ... [2018-11-10 12:57:32,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:57:32,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:57:32,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:57:32,900 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:57:32,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:32" (1/1) ... [2018-11-10 12:57:32,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:32" (1/1) ... [2018-11-10 12:57:32,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:32" (1/1) ... [2018-11-10 12:57:32,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:32" (1/1) ... [2018-11-10 12:57:32,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:32" (1/1) ... [2018-11-10 12:57:32,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:32" (1/1) ... [2018-11-10 12:57:32,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:32" (1/1) ... [2018-11-10 12:57:32,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:57:32,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:57:32,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:57:32,919 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:57:32,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/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 12:57:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:57:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:57:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:57:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:57:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure mcos [2018-11-10 12:57:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure mcos [2018-11-10 12:57:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:57:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:57:33,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 12:57:33,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 12:57:33,193 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:57:33,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:57:33 BoogieIcfgContainer [2018-11-10 12:57:33,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:57:33,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:57:33,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:57:33,198 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:57:33,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:57:32" (1/3) ... [2018-11-10 12:57:33,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317953dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:57:33, skipping insertion in model container [2018-11-10 12:57:33,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:32" (2/3) ... [2018-11-10 12:57:33,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317953dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:57:33, skipping insertion in model container [2018-11-10 12:57:33,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:57:33" (3/3) ... [2018-11-10 12:57:33,202 INFO L112 eAbstractionObserver]: Analyzing ICFG cos_polynomial_true-unreach-call_true-termination.c [2018-11-10 12:57:33,213 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:57:33,220 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:57:33,236 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:57:33,269 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:57:33,270 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:57:33,270 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:57:33,270 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:57:33,270 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:57:33,270 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:57:33,270 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:57:33,271 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:57:33,287 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-10 12:57:33,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 12:57:33,293 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:57:33,293 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:57:33,296 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:57:33,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:57:33,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1633822415, now seen corresponding path program 1 times [2018-11-10 12:57:33,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:57:33,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:57:33,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:57:33,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:57:33,351 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:57:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:57:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:57:33,417 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 12:57:33,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:57:33 BoogieIcfgContainer [2018-11-10 12:57:33,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:57:33,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:57:33,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:57:33,438 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:57:33,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:57:33" (3/4) ... [2018-11-10 12:57:33,441 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 12:57:33,441 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:57:33,442 INFO L168 Benchmark]: Toolchain (without parser) took 729.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 959.3 MB in the beginning and 1.1 GB in the end (delta: -159.4 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:57:33,443 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:57:33,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.40 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 947.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-11-10 12:57:33,444 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.17 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:57:33,445 INFO L168 Benchmark]: Boogie Preprocessor took 19.15 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:57:33,445 INFO L168 Benchmark]: RCFGBuilder took 274.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -200.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-10 12:57:33,446 INFO L168 Benchmark]: TraceAbstraction took 242.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2018-11-10 12:57:33,446 INFO L168 Benchmark]: Witness Printer took 3.68 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:57:33,451 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 164.40 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 947.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.17 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.15 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 274.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -200.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 242.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.68 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 26, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 27. Possible FailurePath: [L11] double C1 = 4.16666666666666019037e-02; [L12] double C2 = -1.38888888888741095749e-03; [L13] double C3 = 2.48015872894767294178e-05; [L14] double C4 = -2.75573143513906633035e-07; [L15] double C5 = 2.08757232129817482790e-09; [L16] double C6 = -1.13596475577881948265e-11; VAL [\old(C1)=7, \old(C2)=2, \old(C3)=9, \old(C4)=8, \old(C5)=5, \old(C6)=6, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L44] double a, r; [L46] a = __VERIFIER_nondet_double() [L49] CALL, EXPR mcos(a) VAL [\old(x)=3, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L20] double a, hz, z, r, qx, zr; [L21] z = x*x VAL [\old(x)=3, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, x=3] [L22] COND TRUE x < 0. [L22] x = -x VAL [\old(x)=3, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L23] hz = 0.5 * z [L24] r = z*(C1+z*(C2+z*(C3+z*(C4+z*(C5+z*C6))))) [L25] zr = z*r VAL [\old(x)=3, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L26] COND TRUE x < 0.3 [L27] RET return 1.-(hz-zr); VAL [\old(x)=3, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L49] EXPR mcos(a) VAL [a=3, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, mcos(a)=4] [L49] r = mcos(a) [L51] CALL __VERIFIER_assert(r >= 0. && r <= 1.1) VAL [\old(cond)=0, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000] [L9] COND TRUE !(cond) VAL [\old(cond)=0, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 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=28occurred 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, 18 NumberOfCodeBlocks, 18 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 12:57:35,123 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:57:35,124 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:57:35,134 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:57:35,135 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:57:35,136 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:57:35,137 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:57:35,138 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:57:35,139 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:57:35,140 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:57:35,141 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:57:35,141 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:57:35,142 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:57:35,143 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:57:35,144 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:57:35,145 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:57:35,145 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:57:35,148 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:57:35,149 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:57:35,151 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:57:35,152 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:57:35,153 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:57:35,155 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:57:35,155 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:57:35,155 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:57:35,156 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:57:35,157 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:57:35,158 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:57:35,159 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:57:35,160 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:57:35,160 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:57:35,161 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:57:35,161 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:57:35,161 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:57:35,162 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:57:35,163 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:57:35,163 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 12:57:35,176 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:57:35,176 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:57:35,177 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:57:35,177 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:57:35,177 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:57:35,178 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:57:35,178 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:57:35,179 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:57:35,179 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:57:35,180 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:57:35,180 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:57:35,180 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:57:35,180 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:57:35,180 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:57:35,180 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:57:35,180 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 12:57:35,181 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 12:57:35,181 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:57:35,181 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:57:35,181 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:57:35,181 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:57:35,181 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:57:35,182 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:57:35,182 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:57:35,182 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:57:35,182 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:57:35,182 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:57:35,182 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:57:35,183 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 12:57:35,183 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:57:35,183 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 12:57:35,183 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 12:57:35,183 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_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan 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 -> Taipan 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 -> 2507b56afd4c82d08388837f279920ee2254841f [2018-11-10 12:57:35,220 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:57:35,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:57:35,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:57:35,235 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:57:35,236 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:57:35,236 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/cos_polynomial_true-unreach-call_true-termination.c [2018-11-10 12:57:35,290 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/data/4899fcea6/8074210b5263426db57f8fe9fd62f6a9/FLAGe73215497 [2018-11-10 12:57:35,651 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:57:35,652 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/sv-benchmarks/c/float-benchs/cos_polynomial_true-unreach-call_true-termination.c [2018-11-10 12:57:35,657 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/data/4899fcea6/8074210b5263426db57f8fe9fd62f6a9/FLAGe73215497 [2018-11-10 12:57:35,668 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/data/4899fcea6/8074210b5263426db57f8fe9fd62f6a9 [2018-11-10 12:57:35,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:57:35,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:57:35,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:57:35,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:57:35,675 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:57:35,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:57:35" (1/1) ... [2018-11-10 12:57:35,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c9978e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:35, skipping insertion in model container [2018-11-10 12:57:35,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:57:35" (1/1) ... [2018-11-10 12:57:35,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:57:35,705 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:57:35,832 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:57:35,837 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:57:35,854 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:57:35,867 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:57:35,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:35 WrapperNode [2018-11-10 12:57:35,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:57:35,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:57:35,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:57:35,868 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:57:35,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:35" (1/1) ... [2018-11-10 12:57:35,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:35" (1/1) ... [2018-11-10 12:57:35,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:57:35,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:57:35,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:57:35,887 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:57:35,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:35" (1/1) ... [2018-11-10 12:57:35,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:35" (1/1) ... [2018-11-10 12:57:35,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:35" (1/1) ... [2018-11-10 12:57:35,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:35" (1/1) ... [2018-11-10 12:57:35,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:35" (1/1) ... [2018-11-10 12:57:35,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:35" (1/1) ... [2018-11-10 12:57:35,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:35" (1/1) ... [2018-11-10 12:57:35,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:57:35,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:57:35,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:57:35,907 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:57:35,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/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 12:57:36,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:57:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:57:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:57:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:57:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure mcos [2018-11-10 12:57:36,001 INFO L138 BoogieDeclarations]: Found implementation of procedure mcos [2018-11-10 12:57:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:57:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:57:36,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 12:57:36,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 12:57:41,633 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:57:41,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:57:41 BoogieIcfgContainer [2018-11-10 12:57:41,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:57:41,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:57:41,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:57:41,637 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:57:41,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:57:35" (1/3) ... [2018-11-10 12:57:41,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a2dfd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:57:41, skipping insertion in model container [2018-11-10 12:57:41,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:57:35" (2/3) ... [2018-11-10 12:57:41,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a2dfd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:57:41, skipping insertion in model container [2018-11-10 12:57:41,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:57:41" (3/3) ... [2018-11-10 12:57:41,640 INFO L112 eAbstractionObserver]: Analyzing ICFG cos_polynomial_true-unreach-call_true-termination.c [2018-11-10 12:57:41,648 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:57:41,653 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:57:41,663 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:57:41,688 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:57:41,689 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:57:41,689 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:57:41,689 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:57:41,689 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:57:41,689 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:57:41,690 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:57:41,690 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:57:41,690 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:57:41,701 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-10 12:57:41,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 12:57:41,705 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:57:41,706 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:57:41,707 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:57:41,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:57:41,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1633822415, now seen corresponding path program 1 times [2018-11-10 12:57:41,713 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:57:41,714 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fcd7aade-d81a-4a69-bb87-55ddb8bbeaf8/bin-2019/utaipan/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 12:57:41,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:00:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:00:00,786 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:00:12,179 WARN L179 SmtUtils]: Spent 10.63 s on a formula simplification that was a NOOP. DAG size: 35 [2018-11-10 13:00:24,663 WARN L179 SmtUtils]: Spent 7.53 s on a formula simplification that was a NOOP. DAG size: 38 [2018-11-10 13:00:26,967 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul RNE |c_mcos_#in~x| |c_mcos_#in~x|))) (and (= (fp.mul RNE .cse0 (fp.mul RNE .cse0 (fp.add RNE c_~C1~0 (fp.mul RNE .cse0 (fp.add RNE c_~C2~0 (fp.mul RNE .cse0 (fp.add RNE c_~C3~0 (fp.mul RNE .cse0 (fp.add RNE c_~C4~0 (fp.mul RNE .cse0 (fp.add RNE c_~C5~0 (fp.mul RNE .cse0 c_~C6~0)))))))))))) c_mcos_~zr~0) (= c_~C3~0 ((_ to_fp 11 53) RNE (/ 124007936447383647089.0 5000000000000000000000000.0))) (= (fp.mul RNE ((_ to_fp 11 53) RNE (/ 1.0 2.0)) .cse0) c_mcos_~hz~0) (= c_mcos_~x (fp.neg |c_mcos_#in~x|)) (= (fp.neg ((_ to_fp 11 53) RNE (/ 55114628702781326607.0 200000000000000000000000000.0))) c_~C4~0) (= c_~C6~0 (fp.neg ((_ to_fp 11 53) RNE (/ 22719295115576389653.0 2000000000000000000000000000000.0)))) (= c_~C5~0 ((_ to_fp 11 53) RNE (/ 20875723212981748279.0 10000000000000000000000000000.0))) (= c_~C2~0 (fp.neg ((_ to_fp 11 53) RNE (/ 138888888888741095749.0 100000000000000000000000.0)))) (= c_~C1~0 ((_ to_fp 11 53) RNE (/ 416666666666666019037.0 10000000000000000000000.0))) (fp.lt |c_mcos_#in~x| (_ +zero 11 53)))) is different from false [2018-11-10 13:00:29,210 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2018-11-10 13:00:29,211 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. No stderr output. 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:845) 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: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) ... 39 more [2018-11-10 13:00:29,214 INFO L168 Benchmark]: Toolchain (without parser) took 173542.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:29,215 INFO L168 Benchmark]: CDTParser took 0.17 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 13:00:29,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.52 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:29,216 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.00 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:29,217 INFO L168 Benchmark]: Boogie Preprocessor took 19.77 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:00:29,217 INFO L168 Benchmark]: RCFGBuilder took 5727.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -193.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:29,218 INFO L168 Benchmark]: TraceAbstraction took 167579.49 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: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:00:29,221 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 195.52 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 18.00 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.77 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 5727.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -193.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 167579.49 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: 33.8 MB). Peak memory consumption was 33.8 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. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: 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...