/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1012a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 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_1012a_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 8843c970c14fead2ee32d56c7ad1a4a87598c42c .................................................................................................................................................................................................................................................................................................................. 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_1012a_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 8843c970c14fead2ee32d56c7ad1a4a87598c42c ................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:29:30,476 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:29:30,480 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:29:30,500 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:29:30,501 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:29:30,502 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:29:30,504 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:29:30,507 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:29:30,509 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:29:30,511 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:29:30,512 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:29:30,512 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:29:30,513 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:29:30,514 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:29:30,515 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:29:30,516 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:29:30,517 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:29:30,519 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:29:30,521 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:29:30,523 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:29:30,524 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:29:30,525 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:29:30,528 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:29:30,528 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:29:30,528 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:29:30,529 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:29:30,530 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:29:30,531 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:29:30,532 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:29:30,533 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:29:30,536 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:29:30,537 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:29:30,538 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:29:30,538 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:29:30,539 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:29:30,542 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:29:30,542 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:29:30,565 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:29:30,565 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:29:30,566 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:29:30,566 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:29:30,567 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:29:30,567 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:29:30,567 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:29:30,568 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:29:30,568 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:29:30,568 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:29:30,568 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:29:30,568 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:29:30,569 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:29:30,569 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:29:30,569 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:29:30,569 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:29:30,569 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:29:30,569 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:29:30,570 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:29:30,570 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:29:30,570 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:29:30,570 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:29:30,570 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:29:30,571 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:29:30,571 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:29:30,571 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:29:30,571 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:29:30,571 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:29:30,571 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:29:30,572 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 -> 8843c970c14fead2ee32d56c7ad1a4a87598c42c [2018-09-20 15:29:30,638 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:29:30,650 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:29:30,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:29:30,655 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:29:30,656 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:29:30,657 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1012a_true-unreach-call.c [2018-09-20 15:29:31,007 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ae40172/47103cd635024763ae096ce8e501e02c/FLAGc02d854e4 [2018-09-20 15:29:31,141 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:29:31,142 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1012a_true-unreach-call.c [2018-09-20 15:29:31,150 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ae40172/47103cd635024763ae096ce8e501e02c/FLAGc02d854e4 [2018-09-20 15:29:31,167 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40ae40172/47103cd635024763ae096ce8e501e02c [2018-09-20 15:29:31,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:29:31,179 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:29:31,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:29:31,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:29:31,187 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:29:31,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d213de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31, skipping insertion in model container [2018-09-20 15:29:31,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,204 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:29:31,417 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:29:31,436 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:29:31,448 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:29:31,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31 WrapperNode [2018-09-20 15:29:31,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:29:31,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:29:31,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:29:31,492 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:29:31,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (1/1) ... [2018-09-20 15:29:31,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:29:31,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:29:31,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:29:31,550 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:29:31,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (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 [2018-09-20 15:29:31,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:29:31,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:29:31,610 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-20 15:29:31,611 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-20 15:29:31,611 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:29:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:29:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-20 15:29:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:29:31,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:29:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:29:31,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:29:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:29:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:29:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-20 15:29:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:29:31,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:29:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:29:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:29:31,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:29:32,190 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:29:32,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:32 BoogieIcfgContainer [2018-09-20 15:29:32,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:29:32,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:29:32,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:29:32,196 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:29:32,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:29:31" (1/3) ... [2018-09-20 15:29:32,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e8b0aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:29:32, skipping insertion in model container [2018-09-20 15:29:32,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:31" (2/3) ... [2018-09-20 15:29:32,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e8b0aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:29:32, skipping insertion in model container [2018-09-20 15:29:32,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:32" (3/3) ... [2018-09-20 15:29:32,200 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1012a_true-unreach-call.c [2018-09-20 15:29:32,210 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:29:32,219 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:29:32,266 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:29:32,267 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:29:32,268 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:29:32,268 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:29:32,268 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:29:32,268 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:29:32,268 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:29:32,268 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:29:32,269 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:29:32,289 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2018-09-20 15:29:32,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-20 15:29:32,297 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:29:32,301 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:29:32,304 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:29:32,315 INFO L82 PathProgramCache]: Analyzing trace with hash -2143918399, now seen corresponding path program 1 times [2018-09-20 15:29:32,317 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:29:32,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:29:32,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:32,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:29:32,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:29:32,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:29:32,468 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:29:32,468 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:29:32,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:29:32,489 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:29:32,490 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:29:32,494 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2018-09-20 15:29:32,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:29:32,529 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2018-09-20 15:29:32,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:29:32,531 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-09-20 15:29:32,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:29:32,540 INFO L225 Difference]: With dead ends: 102 [2018-09-20 15:29:32,541 INFO L226 Difference]: Without dead ends: 51 [2018-09-20 15:29:32,545 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 [2018-09-20 15:29:32,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-20 15:29:32,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-09-20 15:29:32,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-20 15:29:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 50 transitions. [2018-09-20 15:29:32,591 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 50 transitions. Word has length 23 [2018-09-20 15:29:32,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:29:32,592 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 50 transitions. [2018-09-20 15:29:32,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:29:32,592 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 50 transitions. [2018-09-20 15:29:32,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 15:29:32,595 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:29:32,595 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:29:32,595 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:29:32,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1454510497, now seen corresponding path program 1 times [2018-09-20 15:29:32,596 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:29:32,596 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:29:32,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:32,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:29:32,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:29:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:29:32,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:29:32,778 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:29:32,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:29:32 BoogieIcfgContainer [2018-09-20 15:29:32,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:29:32,819 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:29:32,819 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:29:32,820 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:29:32,820 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:32" (3/4) ... [2018-09-20 15:29:32,824 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:29:32,824 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:29:32,825 INFO L168 Benchmark]: Toolchain (without parser) took 1649.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -143.8 MB). Peak memory consumption was 10.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:32,827 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-09-20 15:29:32,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.13 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:32,828 INFO L168 Benchmark]: Boogie Preprocessor took 58.24 ms. Allocated memory is still 1.0 GB. Free memory is still 942.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:29:32,829 INFO L168 Benchmark]: RCFGBuilder took 641.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 942.3 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:32,830 INFO L168 Benchmark]: TraceAbstraction took 626.19 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:32,831 INFO L168 Benchmark]: Witness Printer took 5.03 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. [2018-09-20 15:29:32,835 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 311.13 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.24 ms. Allocated memory is still 1.0 GB. Free memory is still 942.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 641.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 942.3 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 626.19 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.03 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: 51]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of bitwiseAnd at line 34. Possible FailurePath: [L46] float x = 1.0f / 0.0f; [L47] CALL, EXPR fabs_float(x) VAL [\old(x)=13] [L12] __uint32_t ix; VAL [\old(x)=13, x=13] [L14] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=13, gf_u={14:0}, x=13] [L15] FCALL gf_u.value = (x) VAL [\old(x)=13, gf_u={14:0}, x=13] [L16] EXPR, FCALL gf_u.word VAL [\old(x)=13, gf_u={14:0}, gf_u.word=11, x=13] [L16] (ix) = gf_u.word VAL [\old(x)=13, gf_u={14:0}, gf_u.word=11, ix=11, x=13] [L16] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=6, \old(x)=13, gf_u={14:0}, gf_u.word=11, ix=11, x=13] [L17] COND FALSE !(0) VAL [\old(x)=13, ix=11, x=13] [L19] FCALL ieee_float_shape_type sf_u; VAL [\old(x)=13, ix=11, sf_u={7:0}, x=13] [L20] FCALL sf_u.word = (ix & 0x7fffffff) VAL [\old(x)=13, ix=11, sf_u={7:0}, x=13] [L21] EXPR, FCALL sf_u.value VAL [\old(x)=13, ix=11, sf_u={7:0}, sf_u.value=12, x=13] [L21] (x) = sf_u.value VAL [\old(x)=13, ix=11, sf_u={7:0}, sf_u.value=12, x=12] [L21] FCALL (x) = sf_u.value VAL [(x) = sf_u.value=9, \old(x)=13, ix=11, sf_u={7:0}, sf_u.value=12, x=12] [L22] COND FALSE !(0) VAL [\old(x)=13, ix=11, x=12] [L23] RET return x; VAL [\old(x)=13, \result=12, ix=11, x=12] [L47] EXPR fabs_float(x) VAL [fabs_float(x)=12, x=13] [L47] float res = fabs_float(x); [L50] CALL, EXPR isinf_float(res) VAL [\old(x)=12] [L28] __int32_t ix; VAL [\old(x)=12, x=12] [L30] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=12, gf_u={10:0}, x=12] [L31] FCALL gf_u.value = (x) VAL [\old(x)=12, gf_u={10:0}, x=12] [L32] EXPR, FCALL gf_u.word VAL [\old(x)=12, gf_u={10:0}, gf_u.word=2, x=12] [L32] (ix) = gf_u.word VAL [\old(x)=12, gf_u={10:0}, gf_u.word=2, ix=2, x=12] [L32] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=8, \old(x)=12, gf_u={10:0}, gf_u.word=2, ix=2, x=12] [L33] COND FALSE !(0) VAL [\old(x)=12, ix=2, x=12] [L34] ix &= 0x7fffffff [L35] RET return ((ix) == 0x7f800000L); VAL [\old(x)=12, \result=0, ix=0, x=12] [L50] EXPR isinf_float(res) VAL [isinf_float(res)=0, res=12, x=13] [L50] COND TRUE !isinf_float(res) [L51] __VERIFIER_error() VAL [res=12, x=13] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 55 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 54 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:29:35,163 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:29:35,165 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:29:35,178 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:29:35,178 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:29:35,180 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:29:35,181 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:29:35,183 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:29:35,185 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:29:35,186 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:29:35,187 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:29:35,187 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:29:35,188 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:29:35,189 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:29:35,191 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:29:35,192 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:29:35,193 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:29:35,195 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:29:35,198 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:29:35,199 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:29:35,201 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:29:35,203 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:29:35,206 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:29:35,206 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:29:35,206 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:29:35,208 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:29:35,209 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:29:35,210 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:29:35,211 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:29:35,213 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:29:35,213 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:29:35,214 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:29:35,214 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:29:35,214 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:29:35,216 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:29:35,217 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:29:35,217 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:29:35,233 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:29:35,234 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:29:35,235 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:29:35,235 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:29:35,236 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:29:35,236 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:29:35,236 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:29:35,236 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:29:35,237 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:29:35,237 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:29:35,237 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:29:35,237 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:29:35,237 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:29:35,238 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:29:35,239 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:29:35,239 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:29:35,239 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:29:35,239 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:29:35,239 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:29:35,240 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:29:35,240 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:29:35,240 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:29:35,240 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:29:35,240 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:29:35,242 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:29:35,242 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:29:35,242 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:29:35,242 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:29:35,242 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:29:35,242 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:29:35,243 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:29:35,243 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 -> 8843c970c14fead2ee32d56c7ad1a4a87598c42c [2018-09-20 15:29:35,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:29:35,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:29:35,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:29:35,310 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:29:35,311 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:29:35,312 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1012a_true-unreach-call.c [2018-09-20 15:29:35,677 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d7088b72/39edf38f5d824df2a8667082977f6ec6/FLAG94fd9cef0 [2018-09-20 15:29:35,877 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:29:35,878 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1012a_true-unreach-call.c [2018-09-20 15:29:35,890 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d7088b72/39edf38f5d824df2a8667082977f6ec6/FLAG94fd9cef0 [2018-09-20 15:29:35,912 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d7088b72/39edf38f5d824df2a8667082977f6ec6 [2018-09-20 15:29:35,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:29:35,923 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:29:35,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:29:35,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:29:35,940 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:29:35,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:29:35" (1/1) ... [2018-09-20 15:29:35,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cba804d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:35, skipping insertion in model container [2018-09-20 15:29:35,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:29:35" (1/1) ... [2018-09-20 15:29:35,959 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:29:36,224 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:29:36,252 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:29:36,270 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:29:36,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:36 WrapperNode [2018-09-20 15:29:36,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:29:36,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:29:36,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:29:36,316 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:29:36,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:36" (1/1) ... [2018-09-20 15:29:36,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:36" (1/1) ... [2018-09-20 15:29:36,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:36" (1/1) ... [2018-09-20 15:29:36,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:36" (1/1) ... [2018-09-20 15:29:36,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:36" (1/1) ... [2018-09-20 15:29:36,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:36" (1/1) ... [2018-09-20 15:29:36,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:36" (1/1) ... [2018-09-20 15:29:36,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:29:36,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:29:36,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:29:36,390 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:29:36,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:36" (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 [2018-09-20 15:29:36,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:29:36,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:29:36,459 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-20 15:29:36,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-20 15:29:36,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:29:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:29:36,459 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-20 15:29:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:29:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:29:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:29:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:29:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:29:36,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:29:36,461 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-20 15:29:36,461 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:29:36,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:29:36,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:29:36,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:29:36,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:29:36,808 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:29:36,853 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:29:36,973 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:29:37,010 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:29:37,040 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:29:37,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:37 BoogieIcfgContainer [2018-09-20 15:29:37,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:29:37,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:29:37,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:29:37,046 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:29:37,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:29:35" (1/3) ... [2018-09-20 15:29:37,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a8b791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:29:37, skipping insertion in model container [2018-09-20 15:29:37,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:29:36" (2/3) ... [2018-09-20 15:29:37,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a8b791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:29:37, skipping insertion in model container [2018-09-20 15:29:37,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:37" (3/3) ... [2018-09-20 15:29:37,050 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1012a_true-unreach-call.c [2018-09-20 15:29:37,060 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:29:37,070 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:29:37,122 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:29:37,123 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:29:37,123 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:29:37,123 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:29:37,123 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:29:37,124 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:29:37,124 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:29:37,124 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:29:37,124 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:29:37,145 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-09-20 15:29:37,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:29:37,158 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:29:37,159 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:29:37,162 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:29:37,168 INFO L82 PathProgramCache]: Analyzing trace with hash 104849959, now seen corresponding path program 1 times [2018-09-20 15:29:37,173 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:29:37,173 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) [2018-09-20 15:29:37,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:29:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:29:37,252 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:29:37,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:29:37,273 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:29:37,286 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:29:37,287 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:29:37,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:29:37,304 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:29:37,305 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:29:37,308 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-09-20 15:29:37,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:29:37,336 INFO L93 Difference]: Finished difference Result 100 states and 113 transitions. [2018-09-20 15:29:37,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:29:37,338 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:29:37,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:29:37,347 INFO L225 Difference]: With dead ends: 100 [2018-09-20 15:29:37,347 INFO L226 Difference]: Without dead ends: 50 [2018-09-20 15:29:37,351 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:29:37,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-09-20 15:29:37,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-09-20 15:29:37,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-09-20 15:29:37,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 49 transitions. [2018-09-20 15:29:37,392 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 49 transitions. Word has length 22 [2018-09-20 15:29:37,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:29:37,393 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 49 transitions. [2018-09-20 15:29:37,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:29:37,393 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 49 transitions. [2018-09-20 15:29:37,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-20 15:29:37,395 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:29:37,395 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] [2018-09-20 15:29:37,396 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:29:37,396 INFO L82 PathProgramCache]: Analyzing trace with hash -582829660, now seen corresponding path program 1 times [2018-09-20 15:29:37,397 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:29:37,398 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 [2018-09-20 15:29:37,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:29:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:29:37,512 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:29:37,645 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 [2018-09-20 15:29:37,654 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 [2018-09-20 15:29:37,655 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:37,679 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:37,715 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:37,715 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:29:37,755 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 [2018-09-20 15:29:37,759 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 [2018-09-20 15:29:37,759 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:37,788 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:37,811 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:37,811 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:29:38,048 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 [2018-09-20 15:29:38,052 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 [2018-09-20 15:29:38,053 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:38,061 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:38,076 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. [2018-09-20 15:29:38,076 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-20 15:29:38,168 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 [2018-09-20 15:29:38,186 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 [2018-09-20 15:29:38,186 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:38,214 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:38,291 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. [2018-09-20 15:29:38,292 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-09-20 15:29:39,212 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 [2018-09-20 15:29:39,216 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 [2018-09-20 15:29:39,216 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:39,220 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:39,230 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:39,230 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:29:39,305 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 [2018-09-20 15:29:39,309 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 [2018-09-20 15:29:39,310 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:29:39,344 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:39,369 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:29:39,369 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:29:40,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:29:40,016 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:29:40,030 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:29:40,031 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-09-20 15:29:40,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-20 15:29:40,034 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-20 15:29:40,035 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2018-09-20 15:29:40,035 INFO L87 Difference]: Start difference. First operand 50 states and 49 transitions. Second operand 19 states. [2018-09-20 15:29:42,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:29:42,762 INFO L93 Difference]: Finished difference Result 50 states and 49 transitions. [2018-09-20 15:29:42,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-20 15:29:42,762 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 49 [2018-09-20 15:29:42,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:29:42,763 INFO L225 Difference]: With dead ends: 50 [2018-09-20 15:29:42,764 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:29:42,766 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=151, Invalid=1331, Unknown=0, NotChecked=0, Total=1482 [2018-09-20 15:29:42,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:29:42,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:29:42,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:29:42,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:29:42,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-09-20 15:29:42,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:29:42,767 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:29:42,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-20 15:29:42,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:29:42,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:29:42,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:29:43,056 INFO L426 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-09-20 15:29:43,056 INFO L426 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-09-20 15:29:43,057 INFO L426 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2018-09-20 15:29:43,057 INFO L426 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-09-20 15:29:43,057 INFO L426 ceAbstractionStarter]: For program point L32-2(line 32) no Hoare annotation was computed. [2018-09-20 15:29:43,057 INFO L426 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2018-09-20 15:29:43,057 INFO L426 ceAbstractionStarter]: For program point L30-2(line 30) no Hoare annotation was computed. [2018-09-20 15:29:43,057 INFO L426 ceAbstractionStarter]: For program point L29-1(lines 29 33) no Hoare annotation was computed. [2018-09-20 15:29:43,057 INFO L426 ceAbstractionStarter]: For program point L30-3(line 30) no Hoare annotation was computed. [2018-09-20 15:29:43,058 INFO L422 ceAbstractionStarter]: At program point L29-3(lines 29 33) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-09-20 15:29:43,058 INFO L426 ceAbstractionStarter]: For program point L29-4(lines 29 33) no Hoare annotation was computed. [2018-09-20 15:29:43,058 INFO L429 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 27 36) the Hoare annotation is: true [2018-09-20 15:29:43,058 INFO L426 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 27 36) no Hoare annotation was computed. [2018-09-20 15:29:43,058 INFO L426 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 27 36) no Hoare annotation was computed. [2018-09-20 15:29:43,058 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:29:43,059 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:29:43,059 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:29:43,059 INFO L426 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 11 24) no Hoare annotation was computed. [2018-09-20 15:29:43,059 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:29:43,059 INFO L426 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-09-20 15:29:43,059 INFO L426 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-09-20 15:29:43,063 INFO L426 ceAbstractionStarter]: For program point L21-2(line 21) no Hoare annotation was computed. [2018-09-20 15:29:43,063 INFO L426 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-09-20 15:29:43,063 INFO L426 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2018-09-20 15:29:43,063 INFO L426 ceAbstractionStarter]: For program point L19-3(line 19) no Hoare annotation was computed. [2018-09-20 15:29:43,063 INFO L426 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-09-20 15:29:43,063 INFO L426 ceAbstractionStarter]: For program point L13-1(lines 13 17) no Hoare annotation was computed. [2018-09-20 15:29:43,063 INFO L422 ceAbstractionStarter]: At program point L13-3(lines 13 17) the Hoare annotation is: (= fabs_float_~x |fabs_float_#in~x|) [2018-09-20 15:29:43,064 INFO L426 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 11 24) no Hoare annotation was computed. [2018-09-20 15:29:43,064 INFO L429 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 11 24) the Hoare annotation is: true [2018-09-20 15:29:43,064 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-20 15:29:43,064 INFO L426 ceAbstractionStarter]: For program point L18(lines 18 22) no Hoare annotation was computed. [2018-09-20 15:29:43,064 INFO L426 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-09-20 15:29:43,064 INFO L426 ceAbstractionStarter]: For program point L18-2(lines 11 24) no Hoare annotation was computed. [2018-09-20 15:29:43,064 INFO L426 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-09-20 15:29:43,065 INFO L426 ceAbstractionStarter]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2018-09-20 15:29:43,065 INFO L426 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-09-20 15:29:43,065 INFO L426 ceAbstractionStarter]: For program point L16-2(line 16) no Hoare annotation was computed. [2018-09-20 15:29:43,065 INFO L426 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-09-20 15:29:43,065 INFO L426 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-09-20 15:29:43,065 INFO L426 ceAbstractionStarter]: For program point L14-3(line 14) no Hoare annotation was computed. [2018-09-20 15:29:43,069 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:29:43,069 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:29:43,069 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:29:43,069 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:29:43,069 INFO L426 ceAbstractionStarter]: For program point L50-1(lines 50 53) no Hoare annotation was computed. [2018-09-20 15:29:43,069 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 51) no Hoare annotation was computed. [2018-09-20 15:29:43,071 INFO L422 ceAbstractionStarter]: At program point L47(line 47) the Hoare annotation is: (= (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)) main_~x~0) [2018-09-20 15:29:43,071 INFO L426 ceAbstractionStarter]: For program point L47-1(line 47) no Hoare annotation was computed. [2018-09-20 15:29:43,071 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 38 56) the Hoare annotation is: true [2018-09-20 15:29:43,071 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 38 56) no Hoare annotation was computed. [2018-09-20 15:29:43,071 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 38 56) no Hoare annotation was computed. [2018-09-20 15:29:43,071 INFO L426 ceAbstractionStarter]: For program point L51(line 51) no Hoare annotation was computed. [2018-09-20 15:29:43,072 INFO L422 ceAbstractionStarter]: At program point L50(line 50) the Hoare annotation is: (and (= (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)) main_~x~0) (exists ((fabs_float_~ix~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) fabs_float_~ix~0) ((_ extract 30 23) fabs_float_~ix~0) ((_ extract 22 0) fabs_float_~ix~0)) (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24))) (= main_~res~0 (let ((.cse0 (bvand fabs_float_~ix~0 (_ bv2147483647 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))))) [2018-09-20 15:29:43,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:29:43 BoogieIcfgContainer [2018-09-20 15:29:43,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:29:43,089 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:29:43,089 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:29:43,089 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:29:43,091 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:29:37" (3/4) ... [2018-09-20 15:29:43,095 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:29:43,104 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:29:43,104 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-09-20 15:29:43,104 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-20 15:29:43,105 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:29:43,111 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-09-20 15:29:43,112 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-20 15:29:43,112 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:29:43,148 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-09-20 15:29:43,148 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:29:43,187 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:29:43,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:29:43,192 INFO L168 Benchmark]: Toolchain (without parser) took 7269.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 953.2 MB in the beginning and 870.5 MB in the end (delta: 82.7 MB). Peak memory consumption was 204.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:43,194 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:29:43,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.22 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:43,197 INFO L168 Benchmark]: Boogie Preprocessor took 73.27 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:29:43,198 INFO L168 Benchmark]: RCFGBuilder took 651.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:43,198 INFO L168 Benchmark]: TraceAbstraction took 6046.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 877.4 MB in the end (delta: 218.4 MB). Peak memory consumption was 218.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:43,199 INFO L168 Benchmark]: Witness Printer took 98.81 ms. Allocated memory is still 1.2 GB. Free memory was 877.4 MB in the beginning and 870.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:29:43,204 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 386.22 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.27 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 651.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6046.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 877.4 MB in the end (delta: 218.4 MB). Peak memory consumption was 218.4 MB. Max. memory is 11.5 GB. * Witness Printer took 98.81 ms. Allocated memory is still 1.2 GB. Free memory was 877.4 MB in the beginning and 870.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 51]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. SAFE Result, 5.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 2.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 83 SDtfs, 36 SDslu, 434 SDs, 0 SdLazy, 292 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 60 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 69 ConstructedInterpolants, 14 QuantifiedInterpolants, 30729 SizeOfPredicates, 19 NumberOfNonLiveVariables, 145 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...