./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/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 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc .......................................................................................................................................................................................................................................................................................................................... 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_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/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 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:55:57,401 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:55:57,403 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:55:57,408 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:55:57,409 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:55:57,409 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:55:57,410 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:55:57,411 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:55:57,412 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:55:57,412 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:55:57,413 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:55:57,413 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:55:57,414 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:55:57,414 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:55:57,415 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:55:57,416 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:55:57,416 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:55:57,417 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:55:57,419 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:55:57,420 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:55:57,420 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:55:57,421 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:55:57,423 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:55:57,423 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:55:57,423 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:55:57,424 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:55:57,424 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:55:57,425 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:55:57,425 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:55:57,426 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:55:57,426 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:55:57,427 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:55:57,427 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:55:57,427 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:55:57,428 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:55:57,428 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:55:57,428 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 14:55:57,438 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:55:57,438 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:55:57,439 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:55:57,439 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 14:55:57,439 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:55:57,439 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:55:57,439 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:55:57,439 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:55:57,440 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:55:57,440 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:55:57,440 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:55:57,440 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:55:57,440 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:55:57,440 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:55:57,440 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:55:57,441 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:55:57,441 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:55:57,441 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:55:57,441 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:55:57,441 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:55:57,441 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:55:57,441 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:55:57,441 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:55:57,442 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:55:57,442 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:55:57,442 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:55:57,442 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:55:57,442 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:55:57,442 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:55:57,442 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:55:57,443 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_7090f40d-a960-4b3c-af87-0fbe0268eaca/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 -> 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc [2018-11-18 14:55:57,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:55:57,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:55:57,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:55:57,479 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:55:57,479 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:55:57,479 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-11-18 14:55:57,514 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/data/f3cb98fcb/49fab40a60124312a2a81fb8dd86a7af/FLAG16d337ac0 [2018-11-18 14:55:57,933 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:55:57,933 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-11-18 14:55:57,938 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/data/f3cb98fcb/49fab40a60124312a2a81fb8dd86a7af/FLAG16d337ac0 [2018-11-18 14:55:57,949 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/data/f3cb98fcb/49fab40a60124312a2a81fb8dd86a7af [2018-11-18 14:55:57,952 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:55:57,953 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:55:57,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:55:57,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:55:57,956 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:55:57,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:55:57" (1/1) ... [2018-11-18 14:55:57,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@383ef775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:57, skipping insertion in model container [2018-11-18 14:55:57,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:55:57" (1/1) ... [2018-11-18 14:55:57,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:55:57,989 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:55:58,124 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:55:58,127 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:55:58,151 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:55:58,164 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:55:58,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:58 WrapperNode [2018-11-18 14:55:58,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:55:58,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:55:58,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:55:58,165 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:55:58,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:58" (1/1) ... [2018-11-18 14:55:58,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:58" (1/1) ... [2018-11-18 14:55:58,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:58" (1/1) ... [2018-11-18 14:55:58,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:58" (1/1) ... [2018-11-18 14:55:58,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:58" (1/1) ... [2018-11-18 14:55:58,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:58" (1/1) ... [2018-11-18 14:55:58,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:58" (1/1) ... [2018-11-18 14:55:58,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:55:58,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:55:58,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:55:58,237 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:55:58,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:55:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:55:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:55:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 14:55:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 14:55:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-18 14:55:58,269 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:55:58,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 14:55:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 14:55:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 14:55:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 14:55:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:55:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 14:55:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:55:58,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:55:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:55:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 14:55:58,271 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-18 14:55:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:55:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:55:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:55:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 14:55:58,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 14:55:58,548 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:55:58,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:55:58 BoogieIcfgContainer [2018-11-18 14:55:58,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:55:58,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:55:58,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:55:58,551 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:55:58,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:55:57" (1/3) ... [2018-11-18 14:55:58,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756f58b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:55:58, skipping insertion in model container [2018-11-18 14:55:58,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:55:58" (2/3) ... [2018-11-18 14:55:58,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756f58b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:55:58, skipping insertion in model container [2018-11-18 14:55:58,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:55:58" (3/3) ... [2018-11-18 14:55:58,553 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0460_true-unreach-call.c [2018-11-18 14:55:58,560 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:55:58,565 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:55:58,574 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:55:58,594 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:55:58,595 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:55:58,595 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:55:58,595 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:55:58,595 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:55:58,595 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:55:58,595 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:55:58,595 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:55:58,595 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:55:58,608 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2018-11-18 14:55:58,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 14:55:58,614 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:55:58,614 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:55:58,616 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:55:58,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:55:58,620 INFO L82 PathProgramCache]: Analyzing trace with hash -504993698, now seen corresponding path program 1 times [2018-11-18 14:55:58,621 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:55:58,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:55:58,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:55:58,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:55:58,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:55:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:55:58,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:55:58,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:55:58,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:55:58,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:55:58,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:55:58,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:55:58,740 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 2 states. [2018-11-18 14:55:58,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:55:58,759 INFO L93 Difference]: Finished difference Result 133 states and 196 transitions. [2018-11-18 14:55:58,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:55:58,760 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-18 14:55:58,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:55:58,766 INFO L225 Difference]: With dead ends: 133 [2018-11-18 14:55:58,766 INFO L226 Difference]: Without dead ends: 66 [2018-11-18 14:55:58,768 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:55:58,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-18 14:55:58,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-11-18 14:55:58,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-11-18 14:55:58,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 83 transitions. [2018-11-18 14:55:58,798 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 83 transitions. Word has length 23 [2018-11-18 14:55:58,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:55:58,798 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 83 transitions. [2018-11-18 14:55:58,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:55:58,798 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2018-11-18 14:55:58,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 14:55:58,800 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:55:58,800 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:55:58,800 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:55:58,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:55:58,801 INFO L82 PathProgramCache]: Analyzing trace with hash -319574250, now seen corresponding path program 1 times [2018-11-18 14:55:58,801 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:55:58,801 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:55:58,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:55:58,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:55:58,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:55:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:55:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:55:58,875 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:55:58,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:55:58 BoogieIcfgContainer [2018-11-18 14:55:58,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:55:58,898 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:55:58,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:55:58,899 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:55:58,899 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:55:58" (3/4) ... [2018-11-18 14:55:58,902 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:55:58,902 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:55:58,903 INFO L168 Benchmark]: Toolchain (without parser) took 950.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -106.3 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:55:58,904 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:55:58,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 210.74 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 943.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:55:58,905 INFO L168 Benchmark]: Boogie Preprocessor took 72.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -193.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:55:58,906 INFO L168 Benchmark]: RCFGBuilder took 311.55 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: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:55:58,906 INFO L168 Benchmark]: TraceAbstraction took 348.71 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:55:58,906 INFO L168 Benchmark]: Witness Printer took 3.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:55:58,908 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 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 210.74 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 943.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 943.1 MB in the beginning and 1.1 GB in the end (delta: -193.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 311.55 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: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 348.71 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.96 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: 177]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 87, overapproximation of bitwiseAnd at line 101. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L84-L91] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [\old(one_acos)=4294967315, \old(one_sqrt)=4294967307, \old(pi)=4294967318, \old(pi)=4294967309, \old(pi)=4294967305, \old(pS0_acos)=4294967300, \old(pS1_acos)=4294967316, \old(pS2_acos)=4294967317, \old(pS3_acos)=4294967303, \old(pS4_acos)=4294967308, \old(pS5_acos)=4294967319, \old(qS1_acos)=4294967302, \old(qS2_acos)=4294967310, \old(qS3_acos)=4294967313, \old(qS4_acos)=4294967304, \old(tiny_sqrt)=4294967314, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L169] float x = __VERIFIER_nondet_float(); [L171] COND TRUE x < -1.0f || x > 1.0f VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967306] [L173] CALL, EXPR __ieee754_acosf(x) VAL [\old(x)=4294967306, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L94] float z, p, q, r, w, s, c, df; [L95] __int32_t hx, ix; VAL [\old(x)=4294967306, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967306] [L97] FCALL ieee_float_shape_type gf_u; [L98] FCALL gf_u.value = (x) [L99] EXPR, FCALL gf_u.word [L99] (hx) = gf_u.word [L100] COND FALSE !(0) VAL [\old(x)=4294967306, hx=3, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967306] [L101] ix = hx & 0x7fffffff VAL [\old(x)=4294967306, hx=3, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967306] [L102] COND TRUE ix == 0x3f800000 VAL [\old(x)=4294967306, hx=3, ix=1065353216, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967306] [L103] COND TRUE hx > 0 [L104] RET return 0.0; VAL [\old(x)=4294967306, \result=0, hx=3, ix=1065353216, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967306] [L173] EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=0, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=4294967306] [L173] float res = __ieee754_acosf(x); [L176] CALL, EXPR isnan_float(res) VAL [\old(x)=0, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L13] RET return x != x; VAL [\old(x)=0, \result=0, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L176] EXPR isnan_float(res) VAL [isnan_float(res)=0, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=4294967306] [L176] COND TRUE !isnan_float(res) [L177] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=4294967306] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 71 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 89 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 0.1.23-5842f4b [2018-11-18 14:56:00,296 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:56:00,297 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:56:00,305 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:56:00,306 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:56:00,306 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:56:00,307 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:56:00,308 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:56:00,309 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:56:00,310 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:56:00,310 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:56:00,310 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:56:00,311 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:56:00,311 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:56:00,312 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:56:00,313 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:56:00,313 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:56:00,314 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:56:00,316 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:56:00,317 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:56:00,317 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:56:00,318 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:56:00,319 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:56:00,320 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:56:00,320 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:56:00,320 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:56:00,321 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:56:00,322 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:56:00,322 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:56:00,323 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:56:00,323 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:56:00,323 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:56:00,324 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:56:00,324 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:56:00,324 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:56:00,325 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:56:00,325 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 14:56:00,335 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:56:00,335 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:56:00,335 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:56:00,336 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 14:56:00,336 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:56:00,336 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:56:00,336 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:56:00,336 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:56:00,337 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:56:00,337 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:56:00,337 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:56:00,337 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:56:00,337 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:56:00,337 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:56:00,337 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 14:56:00,338 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 14:56:00,338 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:56:00,338 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:56:00,338 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:56:00,338 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:56:00,338 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:56:00,338 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:56:00,338 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:56:00,339 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:56:00,339 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:56:00,339 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:56:00,339 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:56:00,339 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:56:00,339 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 14:56:00,339 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:56:00,340 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 14:56:00,340 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 14:56:00,340 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_7090f40d-a960-4b3c-af87-0fbe0268eaca/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 -> 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc [2018-11-18 14:56:00,368 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:56:00,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:56:00,380 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:56:00,381 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:56:00,381 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:56:00,382 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-11-18 14:56:00,417 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/data/631e714cd/0fba6f7dc6f44aa2b7bcf683f5e5a0bd/FLAGdc947a1d2 [2018-11-18 14:56:00,811 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:56:00,811 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-11-18 14:56:00,815 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/data/631e714cd/0fba6f7dc6f44aa2b7bcf683f5e5a0bd/FLAGdc947a1d2 [2018-11-18 14:56:00,825 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/data/631e714cd/0fba6f7dc6f44aa2b7bcf683f5e5a0bd [2018-11-18 14:56:00,828 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:56:00,829 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:56:00,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:56:00,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:56:00,832 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:56:00,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:56:00" (1/1) ... [2018-11-18 14:56:00,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c22ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:00, skipping insertion in model container [2018-11-18 14:56:00,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:56:00" (1/1) ... [2018-11-18 14:56:00,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:56:00,864 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:56:01,014 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:56:01,018 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:56:01,052 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:56:01,070 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:56:01,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:01 WrapperNode [2018-11-18 14:56:01,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:56:01,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:56:01,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:56:01,072 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:56:01,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:01" (1/1) ... [2018-11-18 14:56:01,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:01" (1/1) ... [2018-11-18 14:56:01,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:01" (1/1) ... [2018-11-18 14:56:01,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:01" (1/1) ... [2018-11-18 14:56:01,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:01" (1/1) ... [2018-11-18 14:56:01,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:01" (1/1) ... [2018-11-18 14:56:01,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:01" (1/1) ... [2018-11-18 14:56:01,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:56:01,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:56:01,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:56:01,158 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:56:01,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:56:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:56:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:56:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 14:56:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 14:56:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-18 14:56:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:56:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 14:56:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 14:56:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 14:56:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 14:56:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:56:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 14:56:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 14:56:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:56:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 14:56:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 14:56:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-18 14:56:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:56:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:56:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:56:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-18 14:56:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 14:56:01,302 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:56:10,742 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:56:10,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:56:10 BoogieIcfgContainer [2018-11-18 14:56:10,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:56:10,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:56:10,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:56:10,746 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:56:10,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:56:00" (1/3) ... [2018-11-18 14:56:10,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2331448c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:56:10, skipping insertion in model container [2018-11-18 14:56:10,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:56:01" (2/3) ... [2018-11-18 14:56:10,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2331448c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:56:10, skipping insertion in model container [2018-11-18 14:56:10,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:56:10" (3/3) ... [2018-11-18 14:56:10,748 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0460_true-unreach-call.c [2018-11-18 14:56:10,753 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:56:10,757 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:56:10,765 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:56:10,784 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:56:10,784 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:56:10,784 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:56:10,785 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:56:10,785 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:56:10,785 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:56:10,785 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:56:10,785 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:56:10,785 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:56:10,795 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2018-11-18 14:56:10,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 14:56:10,799 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:56:10,799 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:56:10,800 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:56:10,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:56:10,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1750669522, now seen corresponding path program 1 times [2018-11-18 14:56:10,806 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:56:10,806 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 14:56:10,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:56:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:56:10,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:56:10,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:56:10,894 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:56:10,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:56:10,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:56:10,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:56:10,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:56:10,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:56:10,916 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 2 states. [2018-11-18 14:56:10,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:56:10,935 INFO L93 Difference]: Finished difference Result 131 states and 194 transitions. [2018-11-18 14:56:10,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:56:10,936 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-18 14:56:10,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:56:10,942 INFO L225 Difference]: With dead ends: 131 [2018-11-18 14:56:10,942 INFO L226 Difference]: Without dead ends: 65 [2018-11-18 14:56:10,945 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:56:10,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-18 14:56:10,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-11-18 14:56:10,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-18 14:56:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 82 transitions. [2018-11-18 14:56:10,975 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 82 transitions. Word has length 22 [2018-11-18 14:56:10,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:56:10,976 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 82 transitions. [2018-11-18 14:56:10,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:56:10,976 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2018-11-18 14:56:10,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 14:56:10,977 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:56:10,977 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:56:10,977 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:56:10,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:56:10,978 INFO L82 PathProgramCache]: Analyzing trace with hash 978710618, now seen corresponding path program 1 times [2018-11-18 14:56:10,978 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:56:10,978 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 14:56:10,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:56:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:56:11,051 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:56:11,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:56:11,157 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:56:11,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:56:11,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:56:11,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:56:11,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:56:11,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:56:11,171 INFO L87 Difference]: Start difference. First operand 65 states and 82 transitions. Second operand 7 states. [2018-11-18 14:56:17,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:56:17,351 INFO L93 Difference]: Finished difference Result 77 states and 93 transitions. [2018-11-18 14:56:17,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:56:17,352 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-18 14:56:17,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:56:17,355 INFO L225 Difference]: With dead ends: 77 [2018-11-18 14:56:17,355 INFO L226 Difference]: Without dead ends: 66 [2018-11-18 14:56:17,356 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:56:17,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-18 14:56:17,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-11-18 14:56:17,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-18 14:56:17,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 79 transitions. [2018-11-18 14:56:17,364 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 79 transitions. Word has length 23 [2018-11-18 14:56:17,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:56:17,365 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 79 transitions. [2018-11-18 14:56:17,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:56:17,366 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 79 transitions. [2018-11-18 14:56:17,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 14:56:17,366 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:56:17,366 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:56:17,367 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:56:17,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:56:17,367 INFO L82 PathProgramCache]: Analyzing trace with hash -398679110, now seen corresponding path program 1 times [2018-11-18 14:56:17,367 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:56:17,368 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 14:56:17,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:56:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:56:17,562 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:56:18,199 WARN L180 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-18 14:56:19,897 WARN L180 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-18 14:56:21,852 WARN L180 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-18 14:56:24,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:56:24,165 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:56:24,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:56:24,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:56:24,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:56:24,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:56:24,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:56:24,174 INFO L87 Difference]: Start difference. First operand 64 states and 79 transitions. Second operand 7 states. [2018-11-18 14:56:31,593 WARN L180 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 14:56:36,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:56:36,849 INFO L93 Difference]: Finished difference Result 71 states and 86 transitions. [2018-11-18 14:56:36,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:56:36,850 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-18 14:56:36,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:56:36,850 INFO L225 Difference]: With dead ends: 71 [2018-11-18 14:56:36,850 INFO L226 Difference]: Without dead ends: 64 [2018-11-18 14:56:36,851 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:56:36,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-11-18 14:56:36,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-11-18 14:56:36,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-18 14:56:36,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2018-11-18 14:56:36,857 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 23 [2018-11-18 14:56:36,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:56:36,857 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2018-11-18 14:56:36,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:56:36,857 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2018-11-18 14:56:36,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 14:56:36,859 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:56:36,859 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:56:36,859 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:56:36,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:56:36,860 INFO L82 PathProgramCache]: Analyzing trace with hash -323141098, now seen corresponding path program 1 times [2018-11-18 14:56:36,860 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:56:36,860 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 14:56:36,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:56:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:56:36,941 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:56:37,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:56:37,068 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:56:37,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:56:37,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 14:56:37,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 14:56:37,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 14:56:37,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:56:37,077 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand 8 states. [2018-11-18 14:56:42,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:56:42,943 INFO L93 Difference]: Finished difference Result 76 states and 89 transitions. [2018-11-18 14:56:42,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:56:42,945 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-11-18 14:56:42,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:56:42,945 INFO L225 Difference]: With dead ends: 76 [2018-11-18 14:56:42,946 INFO L226 Difference]: Without dead ends: 57 [2018-11-18 14:56:42,946 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-18 14:56:42,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-11-18 14:56:42,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-11-18 14:56:42,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-18 14:56:42,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2018-11-18 14:56:42,952 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 25 [2018-11-18 14:56:42,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:56:42,952 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2018-11-18 14:56:42,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 14:56:42,953 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2018-11-18 14:56:42,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 14:56:42,953 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:56:42,954 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:56:42,954 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:56:42,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:56:42,954 INFO L82 PathProgramCache]: Analyzing trace with hash -519654603, now seen corresponding path program 1 times [2018-11-18 14:56:42,955 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:56:42,955 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 14:56:42,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:56:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:56:44,038 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:56:44,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:56:44,184 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:56:44,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:56:44,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 14:56:44,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 14:56:44,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 14:56:44,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:56:44,203 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand 8 states. [2018-11-18 14:56:49,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:56:49,215 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2018-11-18 14:56:49,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:56:49,398 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-11-18 14:56:49,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:56:49,399 INFO L225 Difference]: With dead ends: 67 [2018-11-18 14:56:49,399 INFO L226 Difference]: Without dead ends: 56 [2018-11-18 14:56:49,400 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-18 14:56:49,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-18 14:56:49,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-11-18 14:56:49,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-18 14:56:49,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2018-11-18 14:56:49,405 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 25 [2018-11-18 14:56:49,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:56:49,405 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2018-11-18 14:56:49,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 14:56:49,406 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2018-11-18 14:56:49,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 14:56:49,407 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:56:49,407 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:56:49,407 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:56:49,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:56:49,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1930361956, now seen corresponding path program 1 times [2018-11-18 14:56:49,408 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:56:49,408 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-18 14:56:49,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:56:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:56:50,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:56:50,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:56:50,747 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:56:50,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:56:50,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 14:56:50,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 14:56:50,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 14:56:50,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:56:50,775 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand 9 states. [2018-11-18 14:56:53,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:56:53,449 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-11-18 14:56:53,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 14:56:53,451 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2018-11-18 14:56:53,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:56:53,451 INFO L225 Difference]: With dead ends: 56 [2018-11-18 14:56:53,451 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:56:53,452 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-11-18 14:56:53,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:56:53,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:56:53,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:56:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:56:53,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-11-18 14:56:53,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:56:53,453 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:56:53,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 14:56:53,453 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:56:53,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:56:53,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 14:56:54,931 WARN L180 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 15 [2018-11-18 14:56:54,959 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-11-18 14:56:54,959 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-11-18 14:56:54,959 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-11-18 14:56:54,959 INFO L425 ceAbstractionStarter]: For program point L130-1(line 130) no Hoare annotation was computed. [2018-11-18 14:56:54,959 INFO L425 ceAbstractionStarter]: For program point L122(lines 122 159) no Hoare annotation was computed. [2018-11-18 14:56:54,959 INFO L425 ceAbstractionStarter]: For program point __ieee754_acosfFINAL(lines 93 160) no Hoare annotation was computed. [2018-11-18 14:56:54,960 INFO L425 ceAbstractionStarter]: For program point L110(lines 110 159) no Hoare annotation was computed. [2018-11-18 14:56:54,960 INFO L425 ceAbstractionStarter]: For program point L139-1(lines 139 143) no Hoare annotation was computed. [2018-11-18 14:56:54,960 INFO L421 ceAbstractionStarter]: At program point L139-3(lines 139 143) the Hoare annotation is: (and (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (not (bvsgt __ieee754_acosf_~ix~1 (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1)))) [2018-11-18 14:56:54,960 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 109) no Hoare annotation was computed. [2018-11-18 14:56:54,960 INFO L428 ceAbstractionStarter]: At program point __ieee754_acosfENTRY(lines 93 160) the Hoare annotation is: true [2018-11-18 14:56:54,960 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 148) no Hoare annotation was computed. [2018-11-18 14:56:54,960 INFO L425 ceAbstractionStarter]: For program point L111(lines 111 112) no Hoare annotation was computed. [2018-11-18 14:56:54,960 INFO L425 ceAbstractionStarter]: For program point L144-2(lines 134 159) no Hoare annotation was computed. [2018-11-18 14:56:54,961 INFO L425 ceAbstractionStarter]: For program point L144-3(lines 144 148) no Hoare annotation was computed. [2018-11-18 14:56:54,961 INFO L425 ceAbstractionStarter]: For program point L107(lines 107 109) no Hoare annotation was computed. [2018-11-18 14:56:54,961 INFO L425 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-11-18 14:56:54,961 INFO L425 ceAbstractionStarter]: For program point __ieee754_acosfEXIT(lines 93 160) no Hoare annotation was computed. [2018-11-18 14:56:54,961 INFO L421 ceAbstractionStarter]: At program point L137(line 137) the Hoare annotation is: (and (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (not (bvsgt __ieee754_acosf_~ix~1 (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1)))) [2018-11-18 14:56:54,961 INFO L425 ceAbstractionStarter]: For program point L137-1(line 137) no Hoare annotation was computed. [2018-11-18 14:56:54,961 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2018-11-18 14:56:54,961 INFO L421 ceAbstractionStarter]: At program point L96-3(lines 96 100) the Hoare annotation is: (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) [2018-11-18 14:56:54,962 INFO L425 ceAbstractionStarter]: For program point L96-4(lines 96 100) no Hoare annotation was computed. [2018-11-18 14:56:54,962 INFO L421 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (let ((.cse0 (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1))) (and (not (bvsgt .cse0 (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (bvslt .cse0 (_ bv1056964608 32))) (not (= (bvadd .cse0 (_ bv3229614080 32)) (_ bv0 32)))))) [2018-11-18 14:56:54,962 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:56:54,962 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:56:54,962 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:56:54,962 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:56:54,962 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 14:56:54,963 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:56:54,963 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:56:54,963 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 162 183) the Hoare annotation is: true [2018-11-18 14:56:54,963 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 162 183) no Hoare annotation was computed. [2018-11-18 14:56:54,963 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2018-11-18 14:56:54,963 INFO L425 ceAbstractionStarter]: For program point L177(line 177) no Hoare annotation was computed. [2018-11-18 14:56:54,964 INFO L421 ceAbstractionStarter]: At program point L176(line 176) the Hoare annotation is: (and (exists ((__ieee754_acosf_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.sub roundNearestTiesToEven __ieee754_acosf_~x __ieee754_acosf_~x))) (fp.div roundNearestTiesToEven .cse0 .cse0)) main_~res~0)) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (fp.lt main_~x~0 (fp.neg .cse1)) (fp.gt main_~x~0 .cse1)))) [2018-11-18 14:56:54,964 INFO L425 ceAbstractionStarter]: For program point L176-1(lines 176 179) no Hoare annotation was computed. [2018-11-18 14:56:54,964 INFO L421 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (fp.lt main_~x~0 (fp.neg .cse0)) (fp.gt main_~x~0 .cse0))) [2018-11-18 14:56:54,964 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 162 183) no Hoare annotation was computed. [2018-11-18 14:56:54,964 INFO L425 ceAbstractionStarter]: For program point L173-1(line 173) no Hoare annotation was computed. [2018-11-18 14:56:54,964 INFO L425 ceAbstractionStarter]: For program point L171(lines 171 180) no Hoare annotation was computed. [2018-11-18 14:56:54,964 INFO L425 ceAbstractionStarter]: For program point L171-2(lines 171 180) no Hoare annotation was computed. [2018-11-18 14:56:54,964 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-11-18 14:56:54,965 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-18 14:56:54,965 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 53 62) no Hoare annotation was computed. [2018-11-18 14:56:54,965 INFO L428 ceAbstractionStarter]: At program point L53-3(lines 53 62) the Hoare annotation is: true [2018-11-18 14:56:54,965 INFO L425 ceAbstractionStarter]: For program point L53-4(lines 17 82) no Hoare annotation was computed. [2018-11-18 14:56:54,965 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-11-18 14:56:54,965 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-18 14:56:54,965 INFO L425 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-18 14:56:54,965 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-11-18 14:56:54,966 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-11-18 14:56:54,966 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-18 14:56:54,966 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-11-18 14:56:54,966 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-18 14:56:54,966 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-11-18 14:56:54,966 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-18 14:56:54,966 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-11-18 14:56:54,966 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-18 14:56:54,966 INFO L425 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-11-18 14:56:54,967 INFO L428 ceAbstractionStarter]: At program point L22-3(lines 22 26) the Hoare annotation is: true [2018-11-18 14:56:54,967 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-11-18 14:56:54,967 INFO L425 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-11-18 14:56:54,967 INFO L428 ceAbstractionStarter]: At program point L76-3(lines 76 80) the Hoare annotation is: true [2018-11-18 14:56:54,967 INFO L425 ceAbstractionStarter]: For program point L76-4(lines 76 80) no Hoare annotation was computed. [2018-11-18 14:56:54,967 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2018-11-18 14:56:54,967 INFO L425 ceAbstractionStarter]: For program point L39-3(lines 39 40) no Hoare annotation was computed. [2018-11-18 14:56:54,967 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-11-18 14:56:54,968 INFO L428 ceAbstractionStarter]: At program point L39-4(lines 39 40) the Hoare annotation is: true [2018-11-18 14:56:54,968 INFO L425 ceAbstractionStarter]: For program point L39-5(lines 39 40) no Hoare annotation was computed. [2018-11-18 14:56:54,973 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:54,974 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:54,975 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:54,975 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:54,980 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:54,981 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:54,981 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:54,981 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:54,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:56:54 BoogieIcfgContainer [2018-11-18 14:56:54,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:56:54,984 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:56:54,984 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:56:54,985 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:56:54,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:56:10" (3/4) ... [2018-11-18 14:56:54,989 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:56:54,995 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 14:56:54,995 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-11-18 14:56:54,996 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:56:54,996 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:56:54,996 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-18 14:56:55,001 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-11-18 14:56:55,001 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 14:56:55,002 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 14:56:55,002 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 14:56:55,020 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 14:56:55,021 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(2147483647bv32, __ieee754_acosf_~hx~1) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0])) && \old(x) == x) && !~bvsgt32(ix, 1065353216bv32)) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) [2018-11-18 14:56:55,055 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7090f40d-a960-4b3c-af87-0fbe0268eaca/bin-2019/uautomizer/witness.graphml [2018-11-18 14:56:55,055 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:56:55,056 INFO L168 Benchmark]: Toolchain (without parser) took 54228.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 949.7 MB in the beginning and 832.2 MB in the end (delta: 117.6 MB). Peak memory consumption was 241.3 MB. Max. memory is 11.5 GB. [2018-11-18 14:56:55,057 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-11-18 14:56:55,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.74 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 928.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:56:55,057 INFO L168 Benchmark]: Boogie Preprocessor took 85.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 928.3 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:56:55,058 INFO L168 Benchmark]: RCFGBuilder took 9585.14 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: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:56:55,058 INFO L168 Benchmark]: TraceAbstraction took 44240.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 839.1 MB in the end (delta: 230.9 MB). Peak memory consumption was 230.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:56:55,059 INFO L168 Benchmark]: Witness Printer took 71.11 ms. Allocated memory is still 1.2 GB. Free memory was 839.1 MB in the beginning and 832.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:56:55,060 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 241.74 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 928.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 928.3 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9585.14 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: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 44240.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 839.1 MB in the end (delta: 230.9 MB). Peak memory consumption was 230.9 MB. Max. memory is 11.5 GB. * Witness Printer took 71.11 ms. Allocated memory is still 1.2 GB. Free memory was 839.1 MB in the beginning and 832.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 177]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant [2018-11-18 14:56:55,063 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:55,063 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:55,064 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:55,064 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:55,064 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:55,064 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:55,065 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-18 14:56:55,065 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] Derived loop invariant: (((\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(2147483647bv32, __ieee754_acosf_~hx~1) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0])) && \old(x) == x) && !~bvsgt32(ix, 1065353216bv32)) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 70 locations, 1 error locations. SAFE Result, 44.1s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 32.6s AutomataDifference, 0.0s DeadEndRemovalTime, 1.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 412 SDtfs, 147 SDslu, 1608 SDs, 0 SdLazy, 163 SolverSat, 7 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 27.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 10.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 37 PreInvPairs, 50 NumberOfFragments, 149 HoareAnnotationTreeSize, 37 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 146 ConstructedInterpolants, 28 QuantifiedInterpolants, 22666 SizeOfPredicates, 19 NumberOfNonLiveVariables, 648 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...