/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0460_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0460_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ............................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0460_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:18:07,372 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:18:07,374 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:18:07,392 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:18:07,392 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:18:07,393 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:18:07,395 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:18:07,397 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:18:07,399 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:18:07,400 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:18:07,401 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:18:07,401 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:18:07,402 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:18:07,403 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:18:07,405 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:18:07,406 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:18:07,407 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:18:07,409 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:18:07,411 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:18:07,413 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:18:07,414 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:18:07,416 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:18:07,418 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:18:07,419 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:18:07,419 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:18:07,420 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:18:07,422 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:18:07,423 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:18:07,424 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:18:07,425 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:18:07,425 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:18:07,426 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:18:07,426 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:18:07,426 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:18:07,428 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:18:07,428 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:18:07,429 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:18:07,446 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:18:07,447 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:18:07,448 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:18:07,448 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:18:07,449 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:18:07,449 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:18:07,449 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:18:07,450 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:18:07,450 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:18:07,450 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:18:07,450 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:18:07,451 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:18:07,451 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:18:07,451 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:18:07,451 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:18:07,451 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:18:07,452 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:18:07,452 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:18:07,452 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:18:07,452 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:18:07,453 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:18:07,453 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:18:07,453 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:18:07,453 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:18:07,453 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:18:07,454 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:18:07,454 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:18:07,454 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:18:07,454 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:18:07,455 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:18:07,547 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:18:07,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:18:07,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:18:07,583 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:18:07,585 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:18:07,586 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-09-21 18:18:07,987 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0266f246/d3f821df4a5544b0892c2f4542988a6f/FLAG67f94303d [2018-09-21 18:18:08,261 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:18:08,262 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-09-21 18:18:08,275 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0266f246/d3f821df4a5544b0892c2f4542988a6f/FLAG67f94303d [2018-09-21 18:18:08,295 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0266f246/d3f821df4a5544b0892c2f4542988a6f [2018-09-21 18:18:08,300 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:18:08,304 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:18:08,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:18:08,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:18:08,314 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:18:08,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:18:08" (1/1) ... [2018-09-21 18:18:08,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40212bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:08, skipping insertion in model container [2018-09-21 18:18:08,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:18:08" (1/1) ... [2018-09-21 18:18:08,333 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:18:08,697 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:18:08,722 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:18:08,756 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:18:08,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:08 WrapperNode [2018-09-21 18:18:08,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:18:08,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:18:08,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:18:08,801 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:18:08,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:08" (1/1) ... [2018-09-21 18:18:08,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:08" (1/1) ... [2018-09-21 18:18:08,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:08" (1/1) ... [2018-09-21 18:18:08,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:08" (1/1) ... [2018-09-21 18:18:08,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:08" (1/1) ... [2018-09-21 18:18:08,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:08" (1/1) ... [2018-09-21 18:18:08,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:08" (1/1) ... [2018-09-21 18:18:08,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:18:08,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:18:08,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:18:08,903 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:18:08,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:18:09,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:18:09,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:18:09,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:18:09,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-21 18:18:09,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-09-21 18:18:09,065 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:18:09,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:18:09,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:18:09,065 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:18:09,066 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-21 18:18:09,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:18:09,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:18:09,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:18:09,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:18:09,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:18:09,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:18:09,067 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-09-21 18:18:09,067 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:18:09,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:18:09,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:18:09,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:18:09,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:18:10,072 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:18:10,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:18:10 BoogieIcfgContainer [2018-09-21 18:18:10,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:18:10,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:18:10,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:18:10,078 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:18:10,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:18:08" (1/3) ... [2018-09-21 18:18:10,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513a2178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:18:10, skipping insertion in model container [2018-09-21 18:18:10,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:08" (2/3) ... [2018-09-21 18:18:10,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@513a2178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:18:10, skipping insertion in model container [2018-09-21 18:18:10,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:18:10" (3/3) ... [2018-09-21 18:18:10,082 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0460_true-unreach-call.c [2018-09-21 18:18:10,092 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:18:10,102 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:18:10,147 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:18:10,148 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:18:10,148 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:18:10,149 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:18:10,149 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:18:10,149 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:18:10,149 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:18:10,149 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:18:10,150 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:18:10,169 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2018-09-21 18:18:10,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-21 18:18:10,184 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:18:10,185 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:18:10,187 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:18:10,194 INFO L82 PathProgramCache]: Analyzing trace with hash 2039483246, now seen corresponding path program 1 times [2018-09-21 18:18:10,196 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:18:10,197 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:18:10,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:18:10,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:18:10,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:18:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:18:10,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:18:10,384 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:18:10,385 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:18:10,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:18:10,406 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:18:10,407 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:18:10,410 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2018-09-21 18:18:10,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:18:10,439 INFO L93 Difference]: Finished difference Result 111 states and 129 transitions. [2018-09-21 18:18:10,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:18:10,441 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-21 18:18:10,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:18:10,456 INFO L225 Difference]: With dead ends: 111 [2018-09-21 18:18:10,456 INFO L226 Difference]: Without dead ends: 106 [2018-09-21 18:18:10,459 INFO L606 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 [2018-09-21 18:18:10,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-09-21 18:18:10,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-09-21 18:18:10,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-09-21 18:18:10,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2018-09-21 18:18:10,517 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 23 [2018-09-21 18:18:10,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:18:10,518 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2018-09-21 18:18:10,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:18:10,518 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2018-09-21 18:18:10,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-21 18:18:10,519 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:18:10,520 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:18:10,520 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:18:10,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1208182358, now seen corresponding path program 1 times [2018-09-21 18:18:10,520 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:18:10,521 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:18:10,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:18:10,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:18:10,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:18:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:18:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:18:10,686 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:18:10,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:18:10 BoogieIcfgContainer [2018-09-21 18:18:10,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:18:10,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:18:10,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:18:10,746 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:18:10,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:18:10" (3/4) ... [2018-09-21 18:18:10,751 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:18:10,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:18:10,752 INFO L168 Benchmark]: Toolchain (without parser) took 2451.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 950.5 MB in the beginning and 1.0 GB in the end (delta: -98.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:18:10,754 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:18:10,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.57 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:18:10,755 INFO L168 Benchmark]: Boogie Preprocessor took 101.82 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:18:10,756 INFO L168 Benchmark]: RCFGBuilder took 1170.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:18:10,757 INFO L168 Benchmark]: TraceAbstraction took 671.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:18:10,758 INFO L168 Benchmark]: Witness Printer took 5.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:18:10,762 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 494.57 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 101.82 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1170.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 671.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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)=4294967316, \old(one_sqrt)=4294967307, \old(pi)=4294967305, \old(pi)=4294967309, \old(pi)=4294967319, \old(pS0_acos)=4294967300, \old(pS1_acos)=4294967317, \old(pS2_acos)=4294967318, \old(pS3_acos)=4294967303, \old(pS4_acos)=4294967308, \old(pS5_acos)=4294967320, \old(qS1_acos)=4294967302, \old(qS2_acos)=4294967310, \old(qS3_acos)=4294967314, \old(qS4_acos)=4294967304, \old(tiny_sqrt)=4294967315, 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] [L169] float x = __VERIFIER_nondet_float(); [L171] COND TRUE x < -1.0f || x > 1.0f VAL [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] [L173] CALL, EXPR __ieee754_acosf(x) 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] [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=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] [L97] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=4294967306, gf_u={4294967312:0}, 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] [L98] FCALL gf_u.value = (x) VAL [\old(x)=4294967306, gf_u={4294967312:0}, 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] [L99] EXPR, FCALL gf_u.word VAL [\old(x)=4294967306, gf_u={4294967312:0}, gf_u.word=4294967299, 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] [L99] (hx) = gf_u.word VAL [\old(x)=4294967306, gf_u={4294967312:0}, gf_u.word=4294967299, 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] [L99] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=4294967313, \old(x)=4294967306, gf_u={4294967312:0}, gf_u.word=4294967299, hx=3, 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] [L100] COND FALSE !(0) 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] [L101] ix = hx & 0x7fffffff VAL [\old(x)=4294967306, hx=3, 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] [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=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] [L173] float res = __ieee754_acosf(x); [L176] CALL, EXPR isnan_float(res) VAL [\old(x)=0, 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] [L13] RET return x != x; VAL [\old(x)=0, \result=0, 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=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=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, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=4294967306] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 111 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 129 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=111occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 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 0.1.23-5eb3fea [2018-09-21 18:18:13,271 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:18:13,273 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:18:13,286 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:18:13,286 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:18:13,287 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:18:13,289 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:18:13,291 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:18:13,293 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:18:13,294 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:18:13,295 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:18:13,296 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:18:13,297 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:18:13,298 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:18:13,300 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:18:13,300 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:18:13,301 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:18:13,304 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:18:13,306 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:18:13,307 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:18:13,309 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:18:13,310 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:18:13,313 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:18:13,313 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:18:13,313 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:18:13,315 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:18:13,316 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:18:13,317 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:18:13,318 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:18:13,319 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:18:13,319 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:18:13,320 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:18:13,320 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:18:13,321 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:18:13,322 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:18:13,323 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:18:13,323 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:18:13,339 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:18:13,339 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:18:13,340 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:18:13,340 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:18:13,341 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:18:13,341 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:18:13,341 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:18:13,342 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:18:13,342 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:18:13,342 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:18:13,342 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:18:13,342 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:18:13,343 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:18:13,343 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:18:13,343 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:18:13,343 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:18:13,343 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:18:13,345 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:18:13,345 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:18:13,345 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:18:13,345 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:18:13,345 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:18:13,346 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:18:13,346 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:18:13,346 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:18:13,346 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:18:13,347 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:18:13,347 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:18:13,348 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:18:13,348 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:18:13,348 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:18:13,348 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:18:13,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:18:13,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:18:13,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:18:13,421 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:18:13,422 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:18:13,423 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-09-21 18:18:13,779 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb25cb2a/d92d74804dbf484b8d68f4a47da41e9a/FLAG8bca3c4b3 [2018-09-21 18:18:13,982 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:18:13,983 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-09-21 18:18:13,999 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb25cb2a/d92d74804dbf484b8d68f4a47da41e9a/FLAG8bca3c4b3 [2018-09-21 18:18:14,022 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bb25cb2a/d92d74804dbf484b8d68f4a47da41e9a [2018-09-21 18:18:14,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:18:14,032 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:18:14,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:18:14,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:18:14,045 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:18:14,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:18:14" (1/1) ... [2018-09-21 18:18:14,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@696c0be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:14, skipping insertion in model container [2018-09-21 18:18:14,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:18:14" (1/1) ... [2018-09-21 18:18:14,064 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:18:14,475 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:18:14,502 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:18:14,548 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:18:14,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:14 WrapperNode [2018-09-21 18:18:14,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:18:14,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:18:14,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:18:14,588 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:18:14,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:14" (1/1) ... [2018-09-21 18:18:14,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:14" (1/1) ... [2018-09-21 18:18:14,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:14" (1/1) ... [2018-09-21 18:18:14,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:14" (1/1) ... [2018-09-21 18:18:14,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:14" (1/1) ... [2018-09-21 18:18:14,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:14" (1/1) ... [2018-09-21 18:18:14,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:14" (1/1) ... [2018-09-21 18:18:14,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:18:14,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:18:14,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:18:14,698 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:18:14,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:18:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:18:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:18:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:18:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-21 18:18:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-09-21 18:18:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:18:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:18:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:18:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:18:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-21 18:18:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:18:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:18:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:18:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:18:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:18:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:18:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-09-21 18:18:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:18:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:18:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:18:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:18:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:18:15,124 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:18:15,161 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:18:22,277 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:18:22,291 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:18:24,774 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:18:25,941 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:18:25,950 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:18:25,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:18:25 BoogieIcfgContainer [2018-09-21 18:18:25,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:18:25,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:18:25,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:18:25,956 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:18:25,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:18:14" (1/3) ... [2018-09-21 18:18:25,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46428d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:18:25, skipping insertion in model container [2018-09-21 18:18:25,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:18:14" (2/3) ... [2018-09-21 18:18:25,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46428d8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:18:25, skipping insertion in model container [2018-09-21 18:18:25,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:18:25" (3/3) ... [2018-09-21 18:18:25,961 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0460_true-unreach-call.c [2018-09-21 18:18:25,972 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:18:25,982 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:18:26,021 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:18:26,022 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:18:26,022 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:18:26,022 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:18:26,023 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:18:26,023 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:18:26,023 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:18:26,023 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:18:26,023 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:18:26,047 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states. [2018-09-21 18:18:26,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 18:18:26,071 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:18:26,073 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:18:26,083 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:18:26,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1140012762, now seen corresponding path program 1 times [2018-09-21 18:18:26,092 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:18:26,093 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:18:26,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:18:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:18:26,201 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:18:26,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:18:26,224 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:18:26,238 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:18:26,239 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:18:26,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:18:26,260 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:18:26,261 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:18:26,265 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 2 states. [2018-09-21 18:18:26,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:18:26,303 INFO L93 Difference]: Finished difference Result 110 states and 128 transitions. [2018-09-21 18:18:26,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:18:26,305 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 18:18:26,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:18:26,322 INFO L225 Difference]: With dead ends: 110 [2018-09-21 18:18:26,323 INFO L226 Difference]: Without dead ends: 105 [2018-09-21 18:18:26,326 INFO L606 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 [2018-09-21 18:18:26,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-09-21 18:18:26,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-09-21 18:18:26,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-09-21 18:18:26,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 122 transitions. [2018-09-21 18:18:26,379 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 122 transitions. Word has length 22 [2018-09-21 18:18:26,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:18:26,379 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 122 transitions. [2018-09-21 18:18:26,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:18:26,380 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 122 transitions. [2018-09-21 18:18:26,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:18:26,381 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:18:26,381 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:18:26,382 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:18:26,382 INFO L82 PathProgramCache]: Analyzing trace with hash -458414498, now seen corresponding path program 1 times [2018-09-21 18:18:26,383 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:18:26,383 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-21 18:18:26,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:18:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:18:26,498 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:18:26,736 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:18:26,755 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:18:26,756 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:18:26,781 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:18:26,855 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:18:26,856 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:18:26,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:18:26,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:18:26,964 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:18:26,968 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:18:26,972 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:18:26,972 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:18:27,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:18:27,191 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:18:27,202 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:18:27,203 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:18:27,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:18:27,205 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:18:27,205 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:18:27,206 INFO L87 Difference]: Start difference. First operand 105 states and 122 transitions. Second operand 9 states. [2018-09-21 18:18:28,040 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-21 18:18:35,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:18:35,163 INFO L93 Difference]: Finished difference Result 109 states and 125 transitions. [2018-09-21 18:18:35,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:18:35,165 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-09-21 18:18:35,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:18:35,169 INFO L225 Difference]: With dead ends: 109 [2018-09-21 18:18:35,170 INFO L226 Difference]: Without dead ends: 106 [2018-09-21 18:18:35,171 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:18:35,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-09-21 18:18:35,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2018-09-21 18:18:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-09-21 18:18:35,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 119 transitions. [2018-09-21 18:18:35,183 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 119 transitions. Word has length 31 [2018-09-21 18:18:35,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:18:35,184 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 119 transitions. [2018-09-21 18:18:35,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:18:35,184 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 119 transitions. [2018-09-21 18:18:35,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:18:35,186 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:18:35,186 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:18:35,187 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:18:35,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1835804226, now seen corresponding path program 1 times [2018-09-21 18:18:35,188 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:18:35,188 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-21 18:18:35,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:18:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:18:35,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:18:36,560 WARN L178 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-09-21 18:18:38,628 WARN L178 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-09-21 18:18:42,173 WARN L178 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-09-21 18:18:45,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:18:45,769 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:18:45,790 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:18:45,790 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-21 18:18:45,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-21 18:18:45,791 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-21 18:18:45,791 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-21 18:18:45,791 INFO L87 Difference]: Start difference. First operand 104 states and 119 transitions. Second operand 7 states. [2018-09-21 18:18:56,301 WARN L178 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:19:02,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:19:02,721 INFO L93 Difference]: Finished difference Result 109 states and 124 transitions. [2018-09-21 18:19:02,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 18:19:02,722 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-09-21 18:19:02,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:19:02,725 INFO L225 Difference]: With dead ends: 109 [2018-09-21 18:19:02,725 INFO L226 Difference]: Without dead ends: 104 [2018-09-21 18:19:02,726 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:19:02,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-09-21 18:19:02,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-09-21 18:19:02,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-09-21 18:19:02,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2018-09-21 18:19:02,739 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 31 [2018-09-21 18:19:02,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:19:02,740 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2018-09-21 18:19:02,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-21 18:19:02,740 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2018-09-21 18:19:02,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-21 18:19:02,741 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:19:02,742 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:19:02,742 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:19:02,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1592653798, now seen corresponding path program 1 times [2018-09-21 18:19:02,744 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:19:02,744 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-21 18:19:02,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:19:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:19:02,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:19:02,900 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:19:02,905 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:19:02,906 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:19:02,910 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:02,921 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:02,922 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:19:02,949 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:19:02,953 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:19:02,954 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:19:02,957 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:02,962 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:02,962 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:19:03,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:19:03,256 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:19:03,271 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:19:03,271 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:19:03,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:19:03,272 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:19:03,272 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:19:03,272 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 10 states. [2018-09-21 18:19:10,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:19:10,472 INFO L93 Difference]: Finished difference Result 108 states and 120 transitions. [2018-09-21 18:19:10,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:19:10,473 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2018-09-21 18:19:10,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:19:10,475 INFO L225 Difference]: With dead ends: 108 [2018-09-21 18:19:10,475 INFO L226 Difference]: Without dead ends: 81 [2018-09-21 18:19:10,476 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:19:10,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-21 18:19:10,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-09-21 18:19:10,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-21 18:19:10,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 92 transitions. [2018-09-21 18:19:10,486 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 92 transitions. Word has length 33 [2018-09-21 18:19:10,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:19:10,487 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 92 transitions. [2018-09-21 18:19:10,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:19:10,487 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 92 transitions. [2018-09-21 18:19:10,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-21 18:19:10,489 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:19:10,489 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:19:10,489 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:19:10,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1789167303, now seen corresponding path program 1 times [2018-09-21 18:19:10,491 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:19:10,491 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-21 18:19:10,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:19:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:19:11,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:19:11,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:19:11,777 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:19:11,777 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:19:11,782 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:11,793 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:11,793 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:19:11,819 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:19:11,823 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:19:11,823 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:19:11,827 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:11,830 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:11,831 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:19:12,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:19:12,028 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:19:12,058 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:19:12,058 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:19:12,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:19:12,059 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:19:12,060 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:19:12,060 INFO L87 Difference]: Start difference. First operand 81 states and 92 transitions. Second operand 10 states. [2018-09-21 18:19:18,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:19:18,068 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2018-09-21 18:19:18,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:19:18,070 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2018-09-21 18:19:18,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:19:18,074 INFO L225 Difference]: With dead ends: 83 [2018-09-21 18:19:18,074 INFO L226 Difference]: Without dead ends: 80 [2018-09-21 18:19:18,075 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:19:18,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-09-21 18:19:18,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-09-21 18:19:18,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-09-21 18:19:18,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2018-09-21 18:19:18,084 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 33 [2018-09-21 18:19:18,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:19:18,084 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2018-09-21 18:19:18,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:19:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2018-09-21 18:19:18,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-21 18:19:18,087 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:19:18,088 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:19:18,088 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:19:18,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1165450604, now seen corresponding path program 1 times [2018-09-21 18:19:18,090 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:19:18,090 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-21 18:19:18,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:19:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:19:19,477 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:19:19,526 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-21 18:19:19,530 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:19:19,531 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:19:19,537 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:19,550 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:19,550 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:19:19,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-21 18:19:19,607 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-21 18:19:19,608 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:19:19,632 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:19,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:19:19,639 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:19:19,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:19:19,941 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:19:19,978 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:19:19,979 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 18:19:19,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 18:19:19,979 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 18:19:19,980 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-09-21 18:19:19,980 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand 11 states. [2018-09-21 18:19:20,968 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 29 [2018-09-21 18:19:23,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:19:23,495 INFO L93 Difference]: Finished difference Result 72 states and 82 transitions. [2018-09-21 18:19:23,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 18:19:23,496 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 50 [2018-09-21 18:19:23,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:19:23,496 INFO L225 Difference]: With dead ends: 72 [2018-09-21 18:19:23,497 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:19:23,497 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2018-09-21 18:19:23,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:19:23,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:19:23,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:19:23,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:19:23,498 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-09-21 18:19:23,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:19:23,499 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:19:23,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 18:19:23,499 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:19:23,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:19:23,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:19:23 BoogieIcfgContainer [2018-09-21 18:19:23,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:19:23,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:19:23,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:19:23,505 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:19:23,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:18:25" (3/4) ... [2018-09-21 18:19:23,509 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:19:23,517 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-21 18:19:23,518 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-09-21 18:19:23,518 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:19:23,518 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:19:23,519 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-09-21 18:19:23,528 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2018-09-21 18:19:23,528 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-09-21 18:19:23,529 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-21 18:19:23,529 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:19:23,643 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:19:23,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:19:23,648 INFO L168 Benchmark]: Toolchain (without parser) took 69619.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.4 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:19:23,649 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:19:23,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.26 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:19:23,650 INFO L168 Benchmark]: Boogie Preprocessor took 109.87 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:19:23,651 INFO L168 Benchmark]: RCFGBuilder took 11252.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -158.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:19:23,651 INFO L168 Benchmark]: TraceAbstraction took 57551.73 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -65.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:19:23,653 INFO L168 Benchmark]: Witness Printer took 142.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:19:23,656 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 551.26 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 109.87 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11252.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -158.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 57551.73 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -65.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 142.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. * 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 110 locations, 1 error locations. SAFE Result, 57.4s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 41.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 608 SDtfs, 275 SDslu, 2954 SDs, 0 SdLazy, 362 SolverSat, 15 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 33.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 16.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 194 ConstructedInterpolants, 28 QuantifiedInterpolants, 42506 SizeOfPredicates, 35 NumberOfNonLiveVariables, 696 ConjunctsInSsa, 49 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...