/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211b_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_1211b_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 206a1fa9646ae2b913e15c72bee749b0ae7b465a --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_1211b_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 206a1fa9646ae2b913e15c72bee749b0ae7b465a --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 18:39:30,211 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:39:30,213 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:39:30,226 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:39:30,226 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:39:30,227 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:39:30,229 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:39:30,231 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:39:30,233 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:39:30,234 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:39:30,235 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:39:30,235 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:39:30,236 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:39:30,237 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:39:30,238 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:39:30,239 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:39:30,240 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:39:30,242 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:39:30,244 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:39:30,246 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:39:30,248 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:39:30,249 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:39:30,256 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:39:30,256 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:39:30,256 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:39:30,257 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:39:30,259 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:39:30,259 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:39:30,260 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:39:30,264 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:39:30,266 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:39:30,267 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:39:30,267 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:39:30,267 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:39:30,268 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:39:30,269 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:39:30,270 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:39:30,298 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:39:30,298 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:39:30,299 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:39:30,303 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:39:30,303 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:39:30,304 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:39:30,304 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:39:30,304 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:39:30,304 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:39:30,304 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:39:30,306 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:39:30,306 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:39:30,306 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:39:30,306 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:39:30,307 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:39:30,307 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:39:30,307 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:39:30,307 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:39:30,307 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:39:30,309 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:39:30,309 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:39:30,309 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:39:30,309 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:39:30,309 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:39:30,310 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:39:30,310 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:39:30,310 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:39:30,310 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:39:30,310 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:39:30,311 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 -> 206a1fa9646ae2b913e15c72bee749b0ae7b465a 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 18:39:30,385 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:39:30,399 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:39:30,403 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:39:30,404 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:39:30,404 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:39:30,405 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211b_true-unreach-call.c [2018-09-21 18:39:30,751 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/154a0ac7b/2db558af208c4b3788ff0d028209c17d/FLAG361e5f6e5 [2018-09-21 18:39:30,884 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:39:30,885 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1211b_true-unreach-call.c [2018-09-21 18:39:30,897 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/154a0ac7b/2db558af208c4b3788ff0d028209c17d/FLAG361e5f6e5 [2018-09-21 18:39:30,915 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/154a0ac7b/2db558af208c4b3788ff0d028209c17d [2018-09-21 18:39:30,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:39:30,923 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:39:30,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:39:30,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:39:30,931 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:39:30,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:39:30" (1/1) ... [2018-09-21 18:39:30,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5109b255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:30, skipping insertion in model container [2018-09-21 18:39:30,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:39:30" (1/1) ... [2018-09-21 18:39:30,948 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:39:31,242 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:39:31,271 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:39:31,304 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:39:31,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:31 WrapperNode [2018-09-21 18:39:31,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:39:31,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:39:31,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:39:31,356 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:39:31,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:31" (1/1) ... [2018-09-21 18:39:31,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:31" (1/1) ... [2018-09-21 18:39:31,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:31" (1/1) ... [2018-09-21 18:39:31,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:31" (1/1) ... [2018-09-21 18:39:31,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:31" (1/1) ... [2018-09-21 18:39:31,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:31" (1/1) ... [2018-09-21 18:39:31,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:31" (1/1) ... [2018-09-21 18:39:31,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:39:31,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:39:31,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:39:31,426 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:39:31,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:31" (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 18:39:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:39:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:39:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2018-09-21 18:39:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:39:31,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:39:31,525 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:39:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:39:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:39:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2018-09-21 18:39:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:39:31,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:39:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:39:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:39:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:39:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:39:31,527 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:39:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:39:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:39:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:39:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:39:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:39:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:39:32,633 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:39:32,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:32 BoogieIcfgContainer [2018-09-21 18:39:32,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:39:32,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:39:32,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:39:32,639 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:39:32,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:39:30" (1/3) ... [2018-09-21 18:39:32,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4959b2e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:39:32, skipping insertion in model container [2018-09-21 18:39:32,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:31" (2/3) ... [2018-09-21 18:39:32,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4959b2e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:39:32, skipping insertion in model container [2018-09-21 18:39:32,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:32" (3/3) ... [2018-09-21 18:39:32,644 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211b_true-unreach-call.c [2018-09-21 18:39:32,653 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:39:32,662 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:39:32,713 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:39:32,714 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:39:32,714 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:39:32,714 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:39:32,714 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:39:32,714 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:39:32,715 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:39:32,715 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:39:32,715 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:39:32,739 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2018-09-21 18:39:32,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:39:32,754 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:32,755 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 18:39:32,758 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:32,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1897782458, now seen corresponding path program 1 times [2018-09-21 18:39:32,767 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:39:32,767 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:39:32,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:32,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:32,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:32,948 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 18:39:32,951 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:32,951 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:39:32,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:39:32,976 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:39:32,977 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:39:32,980 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 2 states. [2018-09-21 18:39:33,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:33,011 INFO L93 Difference]: Finished difference Result 138 states and 142 transitions. [2018-09-21 18:39:33,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:39:33,013 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2018-09-21 18:39:33,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:33,028 INFO L225 Difference]: With dead ends: 138 [2018-09-21 18:39:33,028 INFO L226 Difference]: Without dead ends: 132 [2018-09-21 18:39:33,030 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 18:39:33,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-09-21 18:39:33,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-09-21 18:39:33,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-09-21 18:39:33,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 136 transitions. [2018-09-21 18:39:33,087 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 136 transitions. Word has length 31 [2018-09-21 18:39:33,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:33,087 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 136 transitions. [2018-09-21 18:39:33,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:39:33,088 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 136 transitions. [2018-09-21 18:39:33,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-09-21 18:39:33,091 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:33,091 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, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:33,091 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:33,092 INFO L82 PathProgramCache]: Analyzing trace with hash 661835315, now seen corresponding path program 1 times [2018-09-21 18:39:33,092 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:39:33,092 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:39:33,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:33,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:33,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:33,262 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 18:39:33,262 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:33,262 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 18:39:33,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 18:39:33,266 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 18:39:33,266 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:39:33,267 INFO L87 Difference]: Start difference. First operand 132 states and 136 transitions. Second operand 3 states. [2018-09-21 18:39:33,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:33,332 INFO L93 Difference]: Finished difference Result 133 states and 136 transitions. [2018-09-21 18:39:33,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 18:39:33,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2018-09-21 18:39:33,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:33,337 INFO L225 Difference]: With dead ends: 133 [2018-09-21 18:39:33,337 INFO L226 Difference]: Without dead ends: 132 [2018-09-21 18:39:33,338 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:39:33,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-09-21 18:39:33,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-09-21 18:39:33,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-09-21 18:39:33,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 135 transitions. [2018-09-21 18:39:33,351 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 135 transitions. Word has length 57 [2018-09-21 18:39:33,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:33,352 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 135 transitions. [2018-09-21 18:39:33,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 18:39:33,352 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 135 transitions. [2018-09-21 18:39:33,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-21 18:39:33,354 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:33,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:33,355 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:33,355 INFO L82 PathProgramCache]: Analyzing trace with hash 358174954, now seen corresponding path program 1 times [2018-09-21 18:39:33,355 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:39:33,356 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:39:33,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:33,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:33,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:39:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:39:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:39:33,521 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:39:33,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:39:33 BoogieIcfgContainer [2018-09-21 18:39:33,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:39:33,578 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:39:33,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:39:33,578 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:39:33,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:32" (3/4) ... [2018-09-21 18:39:33,583 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:39:33,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:39:33,585 INFO L168 Benchmark]: Toolchain (without parser) took 2664.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -125.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:33,587 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:39:33,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.65 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 935.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:33,589 INFO L168 Benchmark]: Boogie Preprocessor took 69.35 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 18:39:33,590 INFO L168 Benchmark]: RCFGBuilder took 1207.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:33,591 INFO L168 Benchmark]: TraceAbstraction took 942.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:33,592 INFO L168 Benchmark]: Witness Printer took 6.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:39:33,598 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 431.65 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 935.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.35 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 1207.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 942.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 11.5 GB. * Witness Printer took 6.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 110]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 109, overapproximation of someBinaryArithmeticFLOAToperation at line 104, overapproximation of bitwiseAnd at line 93. Possible FailurePath: [L12] static const float one_modf = 1.0; VAL [\old(one_modf)=6442450951, one_modf=1] [L104] float x = -1.0f / 0.0f; VAL [one_modf=1] [L105] FCALL float iptr = __VERIFIER_nondet_float(); VAL [iptr={6442450948:0}, one_modf=1] [L105] FCALL float iptr = __VERIFIER_nondet_float(); VAL [__VERIFIER_nondet_float()=6442450953, iptr={6442450948:0}, one_modf=1] [L106] CALL, EXPR modf_float(x, &iptr) VAL [\old(x)=6442450946, iptr={6442450948:0}, one_modf=1] [L15] __int32_t i0, j0; [L16] __uint32_t i; VAL [\old(x)=6442450946, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L18] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450946, gf_u={6442450949:0}, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L19] FCALL gf_u.value = (x) VAL [\old(x)=6442450946, gf_u={6442450949:0}, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L20] EXPR, FCALL gf_u.word VAL [\old(x)=6442450946, gf_u={6442450949:0}, gf_u.word=2, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L20] (i0) = gf_u.word VAL [\old(x)=6442450946, gf_u={6442450949:0}, gf_u.word=2, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L20] FCALL (i0) = gf_u.word VAL [(i0) = gf_u.word=6442450952, \old(x)=6442450946, gf_u={6442450949:0}, gf_u.word=2, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L21] COND FALSE !(0) VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L22] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, one_modf=1, x=6442450946] [L23] COND TRUE j0 < 23 VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, x=6442450946] [L24] COND TRUE j0 < 0 VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, x=6442450946] [L26] FCALL ieee_float_shape_type sf_u; VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, sf_u={6442450949:0}, x=6442450946] [L27] FCALL sf_u.word = (i0 & 0x80000000) VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, sf_u={6442450949:0}, x=6442450946] [L28] EXPR, FCALL sf_u.value VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, sf_u={6442450949:0}, sf_u.value=6442450952, x=6442450946] [L28] FCALL (*iptr) = sf_u.value VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, sf_u={6442450949:0}, sf_u.value=6442450952, x=6442450946] [L29] COND FALSE !(0) VAL [\old(x)=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, x=6442450946] [L30] RET return x; VAL [\old(x)=6442450946, \result=6442450946, i0=2, iptr={6442450948:0}, iptr={6442450948:0}, j0=-1, one_modf=1, x=6442450946] [L106] EXPR modf_float(x, &iptr) VAL [iptr={6442450948:0}, modf_float(x, &iptr)=6442450946, one_modf=1, x=6442450946] [L106] float res = modf_float(x, &iptr); [L109] EXPR, FCALL \read(iptr) VAL [\read(iptr)=6442450952, iptr={6442450948:0}, one_modf=1, res=6442450946, x=6442450946] [L109] CALL, EXPR isinf_float(iptr) VAL [\old(x)=6442450952, one_modf=1] [L87] __int32_t ix; VAL [\old(x)=6442450952, one_modf=1, x=6442450952] [L89] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450952, gf_u={6442450950:0}, one_modf=1, x=6442450952] [L90] FCALL gf_u.value = (x) VAL [\old(x)=6442450952, gf_u={6442450950:0}, one_modf=1, x=6442450952] [L91] EXPR, FCALL gf_u.word VAL [\old(x)=6442450952, gf_u={6442450950:0}, gf_u.word=6442450944, one_modf=1, x=6442450952] [L91] (ix) = gf_u.word VAL [\old(x)=6442450952, gf_u={6442450950:0}, gf_u.word=6442450944, ix=-2147483648, one_modf=1, x=6442450952] [L91] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=6442450947, \old(x)=6442450952, gf_u={6442450950:0}, gf_u.word=6442450944, ix=-2147483648, one_modf=1, x=6442450952] [L92] COND FALSE !(0) VAL [\old(x)=6442450952, ix=-2147483648, one_modf=1, x=6442450952] [L93] ix &= 0x7fffffff [L94] RET return ((ix) == 0x7f800000L); VAL [\old(x)=6442450952, \result=1, ix=2139095040, one_modf=1, x=6442450952] [L109] EXPR isinf_float(iptr) VAL [\read(iptr)=6442450952, iptr={6442450948:0}, isinf_float(iptr)=1, one_modf=1, res=6442450946, x=6442450946] [L109] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) VAL [\read(iptr)=6442450952, iptr={6442450948:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=6442450946, x=6442450946] [L109] COND TRUE isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) [L109] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [\read(iptr)=6442450952, iptr={6442450948:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=6442450946, res == -0.0f && __signbit_float(res) == 1=0, x=6442450946] [L109] COND FALSE, EXPR !(res == -0.0f && __signbit_float(res) == 1) VAL [\read(iptr)=6442450952, iptr={6442450948:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=6442450946, res == -0.0f && __signbit_float(res) == 1=0, x=6442450946] [L109] isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) VAL [\read(iptr)=6442450952, iptr={6442450948:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1)=1, one_modf=1, res=6442450946, res == -0.0f && __signbit_float(res) == 1=0, x=6442450946] [L109] COND TRUE isinf_float(iptr) && !(res == -0.0f && __signbit_float(res) == 1) [L110] __VERIFIER_error() VAL [iptr={6442450948:0}, one_modf=1, res=6442450946, x=6442450946] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 140 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 278 SDtfs, 0 SDslu, 131 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 147 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 4092 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 18:39:35,990 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:39:35,995 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:39:36,008 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:39:36,008 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:39:36,009 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:39:36,011 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:39:36,012 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:39:36,014 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:39:36,015 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:39:36,017 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:39:36,017 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:39:36,018 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:39:36,019 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:39:36,024 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:39:36,025 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:39:36,026 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:39:36,032 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:39:36,035 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:39:36,040 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:39:36,044 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:39:36,048 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:39:36,052 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:39:36,052 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:39:36,052 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:39:36,053 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:39:36,055 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:39:36,056 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:39:36,057 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:39:36,058 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:39:36,058 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:39:36,059 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:39:36,059 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:39:36,059 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:39:36,060 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:39:36,061 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:39:36,061 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:39:36,078 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:39:36,078 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:39:36,079 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:39:36,079 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:39:36,080 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:39:36,080 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:39:36,081 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:39:36,081 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:39:36,081 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:39:36,081 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:39:36,081 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:39:36,082 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:39:36,082 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:39:36,082 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:39:36,082 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:39:36,082 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:39:36,084 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:39:36,084 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:39:36,084 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:39:36,084 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:39:36,085 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:39:36,085 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:39:36,085 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:39:36,085 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:39:36,085 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:39:36,086 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:39:36,086 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:39:36,086 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:39:36,086 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:39:36,086 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:39:36,087 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:39:36,087 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 -> 206a1fa9646ae2b913e15c72bee749b0ae7b465a 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 18:39:36,139 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:39:36,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:39:36,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:39:36,158 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:39:36,159 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:39:36,159 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1211b_true-unreach-call.c [2018-09-21 18:39:36,504 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db313fb70/4cd19ff54d0a40edbf47cc0ef0087580/FLAG9553d92b2 [2018-09-21 18:39:36,664 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:39:36,665 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1211b_true-unreach-call.c [2018-09-21 18:39:36,674 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db313fb70/4cd19ff54d0a40edbf47cc0ef0087580/FLAG9553d92b2 [2018-09-21 18:39:36,689 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db313fb70/4cd19ff54d0a40edbf47cc0ef0087580 [2018-09-21 18:39:36,694 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:39:36,697 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:39:36,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:39:36,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:39:36,706 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:39:36,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:39:36" (1/1) ... [2018-09-21 18:39:36,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@352e4b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:36, skipping insertion in model container [2018-09-21 18:39:36,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:39:36" (1/1) ... [2018-09-21 18:39:36,723 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:39:37,014 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:39:37,045 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:39:37,071 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:39:37,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:37 WrapperNode [2018-09-21 18:39:37,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:39:37,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:39:37,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:39:37,116 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:39:37,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:37" (1/1) ... [2018-09-21 18:39:37,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:37" (1/1) ... [2018-09-21 18:39:37,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:37" (1/1) ... [2018-09-21 18:39:37,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:37" (1/1) ... [2018-09-21 18:39:37,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:37" (1/1) ... [2018-09-21 18:39:37,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:37" (1/1) ... [2018-09-21 18:39:37,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:37" (1/1) ... [2018-09-21 18:39:37,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:39:37,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:39:37,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:39:37,223 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:39:37,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:37" (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 18:39:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:39:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:39:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2018-09-21 18:39:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-21 18:39:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:39:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:39:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:39:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:39:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2018-09-21 18:39:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:39:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:39:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:39:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:39:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:39:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:39:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-21 18:39:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:39:37,389 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:39:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:39:37,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:39:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:39:37,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:39:37,649 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:37,917 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:37,933 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:37,996 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:38,019 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:38,030 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:38,050 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:38,124 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:38,322 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:38,336 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:38,355 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:38,486 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:38,506 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:38,569 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:38,607 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:39:38,640 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:39:38,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:38 BoogieIcfgContainer [2018-09-21 18:39:38,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:39:38,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:39:38,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:39:38,647 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:39:38,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:39:36" (1/3) ... [2018-09-21 18:39:38,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a456cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:39:38, skipping insertion in model container [2018-09-21 18:39:38,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:39:37" (2/3) ... [2018-09-21 18:39:38,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a456cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:39:38, skipping insertion in model container [2018-09-21 18:39:38,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:38" (3/3) ... [2018-09-21 18:39:38,653 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211b_true-unreach-call.c [2018-09-21 18:39:38,664 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:39:38,674 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:39:38,722 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:39:38,723 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:39:38,724 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:39:38,724 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:39:38,724 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:39:38,724 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:39:38,724 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:39:38,725 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:39:38,725 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:39:38,747 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2018-09-21 18:39:38,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:39:38,762 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:38,764 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 18:39:38,767 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:38,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1897782458, now seen corresponding path program 1 times [2018-09-21 18:39:38,779 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:38,779 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) [2018-09-21 18:39:38,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:39:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:38,886 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:38,918 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 18:39:38,919 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:38,941 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:38,941 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:39:38,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:39:38,967 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:39:38,968 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:39:38,972 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 2 states. [2018-09-21 18:39:39,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:39,015 INFO L93 Difference]: Finished difference Result 138 states and 142 transitions. [2018-09-21 18:39:39,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:39:39,017 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2018-09-21 18:39:39,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:39,037 INFO L225 Difference]: With dead ends: 138 [2018-09-21 18:39:39,037 INFO L226 Difference]: Without dead ends: 132 [2018-09-21 18:39:39,039 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 18:39:39,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-09-21 18:39:39,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-09-21 18:39:39,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-09-21 18:39:39,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 136 transitions. [2018-09-21 18:39:39,091 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 136 transitions. Word has length 31 [2018-09-21 18:39:39,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:39,092 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 136 transitions. [2018-09-21 18:39:39,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:39:39,092 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 136 transitions. [2018-09-21 18:39:39,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-09-21 18:39:39,095 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:39,095 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, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:39,096 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:39,096 INFO L82 PathProgramCache]: Analyzing trace with hash 661835315, now seen corresponding path program 1 times [2018-09-21 18:39:39,097 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:39,098 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 18:39:39,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:39,193 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:39,289 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 18:39:39,305 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 18:39:39,306 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:39,332 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:39,386 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 18:39:39,387 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:39:39,423 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 18:39:39,438 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 18:39:39,439 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:39,465 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:39,468 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 18:39:39,468 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:39:39,760 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 18:39:39,760 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:39,775 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:39,775 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:39:39,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:39:39,778 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:39:39,779 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:39:39,779 INFO L87 Difference]: Start difference. First operand 132 states and 136 transitions. Second operand 9 states. [2018-09-21 18:39:40,795 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-21 18:39:42,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:42,578 INFO L93 Difference]: Finished difference Result 136 states and 138 transitions. [2018-09-21 18:39:42,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:39:42,579 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 57 [2018-09-21 18:39:42,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:42,582 INFO L225 Difference]: With dead ends: 136 [2018-09-21 18:39:42,582 INFO L226 Difference]: Without dead ends: 87 [2018-09-21 18:39:42,583 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:39:42,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-21 18:39:42,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-09-21 18:39:42,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-09-21 18:39:42,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2018-09-21 18:39:42,592 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 57 [2018-09-21 18:39:42,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:42,593 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 88 transitions. [2018-09-21 18:39:42,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:39:42,593 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2018-09-21 18:39:42,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-09-21 18:39:42,596 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:42,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:42,597 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:42,597 INFO L82 PathProgramCache]: Analyzing trace with hash 258065525, now seen corresponding path program 1 times [2018-09-21 18:39:42,598 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:42,599 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 18:39:42,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:42,755 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:42,782 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 18:39:42,783 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:42,798 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:42,799 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 18:39:42,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 18:39:42,801 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 18:39:42,801 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:39:42,801 INFO L87 Difference]: Start difference. First operand 87 states and 88 transitions. Second operand 3 states. [2018-09-21 18:39:42,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:42,835 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2018-09-21 18:39:42,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 18:39:42,836 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2018-09-21 18:39:42,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:42,839 INFO L225 Difference]: With dead ends: 88 [2018-09-21 18:39:42,839 INFO L226 Difference]: Without dead ends: 87 [2018-09-21 18:39:42,840 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:39:42,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-21 18:39:42,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-09-21 18:39:42,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-09-21 18:39:42,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 87 transitions. [2018-09-21 18:39:42,848 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 87 transitions. Word has length 68 [2018-09-21 18:39:42,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:42,849 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 87 transitions. [2018-09-21 18:39:42,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 18:39:42,849 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2018-09-21 18:39:42,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-21 18:39:42,853 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:42,853 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:39:42,853 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:42,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1117536596, now seen corresponding path program 1 times [2018-09-21 18:39:42,854 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:42,855 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 18:39:42,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:43,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:43,047 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 13 treesize of output 10 [2018-09-21 18:39:43,050 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 10 treesize of output 9 [2018-09-21 18:39:43,051 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:43,056 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:43,064 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:39:43,064 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2018-09-21 18:39:43,085 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 31 treesize of output 23 [2018-09-21 18:39:43,090 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 23 treesize of output 15 [2018-09-21 18:39:43,091 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:43,094 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:43,102 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:39:43,102 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:31, output treesize:15 [2018-09-21 18:39:43,285 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 18:39:43,285 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:43,301 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:43,301 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:39:43,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:39:43,302 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:39:43,302 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:39:43,302 INFO L87 Difference]: Start difference. First operand 87 states and 87 transitions. Second operand 9 states. [2018-09-21 18:39:44,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:44,045 INFO L93 Difference]: Finished difference Result 87 states and 86 transitions. [2018-09-21 18:39:44,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:39:44,049 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2018-09-21 18:39:44,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:44,051 INFO L225 Difference]: With dead ends: 87 [2018-09-21 18:39:44,051 INFO L226 Difference]: Without dead ends: 87 [2018-09-21 18:39:44,052 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:39:44,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-21 18:39:44,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-09-21 18:39:44,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-09-21 18:39:44,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 86 transitions. [2018-09-21 18:39:44,058 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 86 transitions. Word has length 70 [2018-09-21 18:39:44,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:44,059 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 86 transitions. [2018-09-21 18:39:44,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:39:44,060 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 86 transitions. [2018-09-21 18:39:44,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-09-21 18:39:44,062 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:39:44,062 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, 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 18:39:44,063 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:39:44,063 INFO L82 PathProgramCache]: Analyzing trace with hash -422775755, now seen corresponding path program 1 times [2018-09-21 18:39:44,064 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:39:44,064 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 18:39:44,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:39:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:39:44,244 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:39:44,269 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 18:39:44,276 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 18:39:44,276 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,284 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,298 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 18:39:44,299 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:39:44,328 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 18:39:44,337 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 18:39:44,338 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,340 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,353 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 18:39:44,354 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:39:44,422 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 13 treesize of output 10 [2018-09-21 18:39:44,427 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 10 treesize of output 9 [2018-09-21 18:39:44,428 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,433 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,452 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:39:44,453 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-21 18:39:44,498 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 31 treesize of output 23 [2018-09-21 18:39:44,504 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 23 treesize of output 15 [2018-09-21 18:39:44,504 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,513 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,522 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:39:44,522 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-21 18:39:44,831 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 18:39:44,836 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 18:39:44,836 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,842 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,855 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 18:39:44,856 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:39:44,921 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 18:39:44,925 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 18:39:44,926 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,930 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:39:44,933 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 18:39:44,934 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:39:45,353 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 18:39:45,353 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:39:45,374 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:39:45,374 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-09-21 18:39:45,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-21 18:39:45,375 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-21 18:39:45,375 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:39:45,376 INFO L87 Difference]: Start difference. First operand 87 states and 86 transitions. Second operand 21 states. [2018-09-21 18:39:51,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:39:51,401 INFO L93 Difference]: Finished difference Result 85 states and 84 transitions. [2018-09-21 18:39:51,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-21 18:39:51,401 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 86 [2018-09-21 18:39:51,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:39:51,402 INFO L225 Difference]: With dead ends: 85 [2018-09-21 18:39:51,402 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:39:51,403 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=175, Invalid=1631, Unknown=0, NotChecked=0, Total=1806 [2018-09-21 18:39:51,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:39:51,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:39:51,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:39:51,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:39:51,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 86 [2018-09-21 18:39:51,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:39:51,405 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:39:51,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-21 18:39:51,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:39:51,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:39:51,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:39:51 BoogieIcfgContainer [2018-09-21 18:39:51,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:39:51,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:39:51,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:39:51,411 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:39:51,412 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:39:38" (3/4) ... [2018-09-21 18:39:51,415 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:39:51,422 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:39:51,422 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-09-21 18:39:51,423 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:39:51,423 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure modf_float [2018-09-21 18:39:51,423 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-09-21 18:39:51,431 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2018-09-21 18:39:51,431 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-09-21 18:39:51,432 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:39:51,517 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:39:51,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:39:51,518 INFO L168 Benchmark]: Toolchain (without parser) took 14824.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.8 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -105.4 MB). Peak memory consumption was 105.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:51,519 INFO L168 Benchmark]: CDTParser took 0.45 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 18:39:51,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.57 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:51,520 INFO L168 Benchmark]: Boogie Preprocessor took 107.00 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:51,521 INFO L168 Benchmark]: RCFGBuilder took 1418.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -167.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:51,522 INFO L168 Benchmark]: TraceAbstraction took 12768.19 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.1 MB). Peak memory consumption was 100.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:51,522 INFO L168 Benchmark]: Witness Printer took 106.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:39:51,526 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 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 416.57 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 107.00 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1418.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -167.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12768.19 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.1 MB). Peak memory consumption was 100.0 MB. Max. memory is 11.5 GB. * Witness Printer took 106.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 110]: 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, 140 locations, 1 error locations. SAFE Result, 12.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 9.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 486 SDtfs, 323 SDslu, 2179 SDs, 0 SdLazy, 655 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 343 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 307 ConstructedInterpolants, 48 QuantifiedInterpolants, 123949 SizeOfPredicates, 36 NumberOfNonLiveVariables, 617 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...