/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0660b_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_0660b_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 bec24c2acca5f88b688a9290c179c6048b0a58a7 --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_0660b_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 bec24c2acca5f88b688a9290c179c6048b0a58a7 --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 18:21:51,566 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:21:51,568 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:21:51,580 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:21:51,581 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:21:51,582 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:21:51,583 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:21:51,585 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:21:51,587 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:21:51,588 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:21:51,589 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:21:51,589 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:21:51,590 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:21:51,591 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:21:51,592 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:21:51,593 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:21:51,594 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:21:51,596 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:21:51,598 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:21:51,599 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:21:51,601 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:21:51,602 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:21:51,605 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:21:51,605 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:21:51,605 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:21:51,606 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:21:51,607 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:21:51,608 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:21:51,609 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:21:51,610 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:21:51,611 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:21:51,612 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:21:51,612 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:21:51,612 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:21:51,613 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:21:51,614 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:21:51,614 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:21:51,637 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:21:51,638 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:21:51,639 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:21:51,639 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:21:51,640 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:21:51,640 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:21:51,640 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:21:51,640 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:21:51,640 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:21:51,641 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:21:51,641 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:21:51,641 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:21:51,641 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:21:51,641 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:21:51,642 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:21:51,642 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:21:51,642 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:21:51,642 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:21:51,643 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:21:51,643 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:21:51,643 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:21:51,643 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:21:51,643 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:21:51,643 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:21:51,644 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:21:51,644 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:21:51,644 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:21:51,644 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:21:51,644 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:21:51,644 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 -> bec24c2acca5f88b688a9290c179c6048b0a58a7 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 18:21:51,700 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:21:51,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:21:51,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:21:51,718 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:21:51,719 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:21:51,720 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0660b_true-unreach-call.c [2018-09-21 18:21:52,069 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77ab3cf64/69eab21dde9b49deb4c6c39ea2fff40f/FLAG91244df33 [2018-09-21 18:21:52,243 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:21:52,245 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0660b_true-unreach-call.c [2018-09-21 18:21:52,260 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77ab3cf64/69eab21dde9b49deb4c6c39ea2fff40f/FLAG91244df33 [2018-09-21 18:21:52,285 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77ab3cf64/69eab21dde9b49deb4c6c39ea2fff40f [2018-09-21 18:21:52,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:21:52,292 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:21:52,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:21:52,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:21:52,304 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:21:52,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:21:52" (1/1) ... [2018-09-21 18:21:52,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2813c0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:52, skipping insertion in model container [2018-09-21 18:21:52,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:21:52" (1/1) ... [2018-09-21 18:21:52,321 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:21:52,587 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:21:52,609 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:21:52,651 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:21:52,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:52 WrapperNode [2018-09-21 18:21:52,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:21:52,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:21:52,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:21:52,694 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:21:52,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:52" (1/1) ... [2018-09-21 18:21:52,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:52" (1/1) ... [2018-09-21 18:21:52,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:52" (1/1) ... [2018-09-21 18:21:52,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:52" (1/1) ... [2018-09-21 18:21:52,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:52" (1/1) ... [2018-09-21 18:21:52,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:52" (1/1) ... [2018-09-21 18:21:52,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:52" (1/1) ... [2018-09-21 18:21:52,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:21:52,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:21:52,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:21:52,760 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:21:52,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:52" (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 18:21:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:21:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:21:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:21:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:21:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:21:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:21:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:21:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:21:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:21:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:21:52,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:21:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:21:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:21:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:21:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:21:52,922 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:21:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:21:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:21:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:21:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:21:52,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:21:52,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:21:54,112 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:21:54,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:21:54 BoogieIcfgContainer [2018-09-21 18:21:54,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:21:54,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:21:54,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:21:54,122 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:21:54,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:21:52" (1/3) ... [2018-09-21 18:21:54,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56df0b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:21:54, skipping insertion in model container [2018-09-21 18:21:54,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:52" (2/3) ... [2018-09-21 18:21:54,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56df0b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:21:54, skipping insertion in model container [2018-09-21 18:21:54,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:21:54" (3/3) ... [2018-09-21 18:21:54,129 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0660b_true-unreach-call.c [2018-09-21 18:21:54,141 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:21:54,154 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:21:54,212 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:21:54,213 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:21:54,214 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:21:54,214 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:21:54,214 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:21:54,214 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:21:54,215 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:21:54,215 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:21:54,216 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:21:54,247 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2018-09-21 18:21:54,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:21:54,270 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:21:54,271 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:21:54,274 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:21:54,288 INFO L82 PathProgramCache]: Analyzing trace with hash 74004840, now seen corresponding path program 1 times [2018-09-21 18:21:54,291 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:21:54,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:21:54,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:21:54,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:21:54,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:21:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:21:54,498 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 18:21:54,501 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:21:54,502 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:21:54,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:21:54,526 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:21:54,529 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:21:54,532 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2018-09-21 18:21:54,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:21:54,582 INFO L93 Difference]: Finished difference Result 157 states and 197 transitions. [2018-09-21 18:21:54,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:21:54,586 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:21:54,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:21:54,602 INFO L225 Difference]: With dead ends: 157 [2018-09-21 18:21:54,603 INFO L226 Difference]: Without dead ends: 152 [2018-09-21 18:21:54,605 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 18:21:54,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-09-21 18:21:54,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-09-21 18:21:54,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-09-21 18:21:54,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 191 transitions. [2018-09-21 18:21:54,677 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 191 transitions. Word has length 19 [2018-09-21 18:21:54,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:21:54,678 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 191 transitions. [2018-09-21 18:21:54,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:21:54,678 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 191 transitions. [2018-09-21 18:21:54,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 18:21:54,683 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:21:54,683 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] [2018-09-21 18:21:54,684 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:21:54,684 INFO L82 PathProgramCache]: Analyzing trace with hash -139830086, now seen corresponding path program 1 times [2018-09-21 18:21:54,684 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:21:54,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:21:54,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:21:54,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:21:54,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:21:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:21:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:21:54,914 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:21:55,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:21:55 BoogieIcfgContainer [2018-09-21 18:21:55,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:21:55,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:21:55,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:21:55,011 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:21:55,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:21:54" (3/4) ... [2018-09-21 18:21:55,022 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:21:55,022 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:21:55,023 INFO L168 Benchmark]: Toolchain (without parser) took 2733.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 954.5 MB in the beginning and 1.1 GB in the end (delta: -110.1 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:21:55,026 INFO L168 Benchmark]: CDTParser took 0.21 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 18:21:55,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.80 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 938.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:21:55,028 INFO L168 Benchmark]: Boogie Preprocessor took 65.83 ms. Allocated memory is still 1.0 GB. Free memory is still 938.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:21:55,028 INFO L168 Benchmark]: RCFGBuilder took 1353.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -160.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:21:55,031 INFO L168 Benchmark]: TraceAbstraction took 894.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:21:55,032 INFO L168 Benchmark]: Witness Printer took 11.68 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 18:21:55,038 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 399.80 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 938.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.83 ms. Allocated memory is still 1.0 GB. Free memory is still 938.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1353.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 938.4 MB in the beginning and 1.1 GB in the end (delta: -160.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 894.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. * Witness Printer took 11.68 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: 231]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 230, overapproximation of someUnaryDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 133, overapproximation of someBinaryArithmeticFLOAToperation at line 135. Possible FailurePath: [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L27-L32] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L34-L39] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L41-L45] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L47-L49] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L115-L116] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [\old(huge_atan)=6442450956, \old(one_atan)=6442450945, \old(pi)=6442450951, \old(pi_lo_atan2)=6442450964, \old(pi_o_2)=6442450946, \old(pi_o_4)=6442450949, \old(tiny_atan2)=6442450960, \old(zero_atan2)=6442450959, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L216] float x = __VERIFIER_nondet_float(); [L217] float y = 0.0f; VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L224] COND TRUE x < 0.0f VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L227] CALL, EXPR __ieee754_atan2f(y, x) VAL [\old(x)=6442450950, \old(y)=0, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L119] float z; [L120] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=6442450950, \old(y)=0, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L123] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450957:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L124] FCALL gf_u.value = (x) VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450957:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L125] EXPR, FCALL gf_u.word VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450957:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L125] (hx) = gf_u.word VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450957:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L125] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=6442450958, \old(x)=6442450950, \old(y)=0, gf_u={6442450957:0}, gf_u.word=6442450944, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L126] COND FALSE !(0) VAL [\old(x)=6442450950, \old(y)=0, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L127] ix = hx & 0x7fffffff VAL [\old(x)=6442450950, \old(y)=0, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L129] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450955:0}, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L130] FCALL gf_u.value = (y) VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450955:0}, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L131] EXPR, FCALL gf_u.word VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450955:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L131] (hy) = gf_u.word VAL [\old(x)=6442450950, \old(y)=0, gf_u={6442450955:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L131] FCALL (hy) = gf_u.word VAL [(hy) = gf_u.word=6442450965, \old(x)=6442450950, \old(y)=0, gf_u={6442450955:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L132] COND FALSE !(0) VAL [\old(x)=6442450950, \old(y)=0, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L133] iy = hy & 0x7fffffff VAL [\old(x)=6442450950, \old(y)=0, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L134] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L135] RET return x + y; VAL [\old(x)=6442450950, \old(y)=0, huge_atan=1000000000000000000000000000000, hx=-2147483648, hy=12, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L227] EXPR __ieee754_atan2f(y, x) VAL [__ieee754_atan2f(y, x)=6442450954, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L227] float res = __ieee754_atan2f(y, x); [L230] COND TRUE res != pi VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450954, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] [L231] __VERIFIER_error() VAL [huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450954, tiny_atan2=1/1000000000000000000000000000000, x=6442450950, y=0, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 157 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 197 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=157occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:21:57,514 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:21:57,516 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:21:57,531 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:21:57,532 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:21:57,533 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:21:57,535 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:21:57,537 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:21:57,539 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:21:57,540 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:21:57,541 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:21:57,541 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:21:57,542 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:21:57,543 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:21:57,544 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:21:57,545 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:21:57,546 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:21:57,548 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:21:57,550 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:21:57,552 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:21:57,553 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:21:57,555 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:21:57,559 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:21:57,559 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:21:57,559 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:21:57,560 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:21:57,564 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:21:57,565 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:21:57,566 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:21:57,570 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:21:57,572 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:21:57,573 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:21:57,574 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:21:57,574 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:21:57,577 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:21:57,578 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:21:57,579 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:21:57,604 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:21:57,605 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:21:57,605 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:21:57,606 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:21:57,606 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:21:57,609 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:21:57,609 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:21:57,610 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:21:57,610 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:21:57,610 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:21:57,610 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:21:57,610 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:21:57,610 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:21:57,611 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:21:57,611 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:21:57,611 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:21:57,611 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:21:57,611 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:21:57,611 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:21:57,612 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:21:57,612 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:21:57,612 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:21:57,612 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:21:57,612 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:21:57,613 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:21:57,613 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:21:57,613 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:21:57,613 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:21:57,614 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:21:57,615 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:21:57,615 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:21:57,615 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 -> bec24c2acca5f88b688a9290c179c6048b0a58a7 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 18:21:57,680 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:21:57,706 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:21:57,711 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:21:57,713 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:21:57,713 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:21:57,714 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0660b_true-unreach-call.c [2018-09-21 18:21:58,131 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d05eb722c/0af8fb1ab9cd4bfea01df700f8eb2ae2/FLAG2480fb093 [2018-09-21 18:21:58,305 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:21:58,306 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0660b_true-unreach-call.c [2018-09-21 18:21:58,316 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d05eb722c/0af8fb1ab9cd4bfea01df700f8eb2ae2/FLAG2480fb093 [2018-09-21 18:21:58,331 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d05eb722c/0af8fb1ab9cd4bfea01df700f8eb2ae2 [2018-09-21 18:21:58,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:21:58,338 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:21:58,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:21:58,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:21:58,347 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:21:58,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:21:58" (1/1) ... [2018-09-21 18:21:58,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156b2af3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:58, skipping insertion in model container [2018-09-21 18:21:58,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:21:58" (1/1) ... [2018-09-21 18:21:58,365 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:21:58,771 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:21:58,802 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:21:58,847 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:21:58,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:58 WrapperNode [2018-09-21 18:21:58,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:21:58,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:21:58,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:21:58,918 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:21:58,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:58" (1/1) ... [2018-09-21 18:21:58,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:58" (1/1) ... [2018-09-21 18:21:58,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:58" (1/1) ... [2018-09-21 18:21:58,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:58" (1/1) ... [2018-09-21 18:21:58,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:58" (1/1) ... [2018-09-21 18:21:58,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:58" (1/1) ... [2018-09-21 18:21:58,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:58" (1/1) ... [2018-09-21 18:21:58,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:21:58,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:21:58,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:21:58,992 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:21:58,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:58" (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 18:21:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:21:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:21:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:21:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-21 18:21:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2f [2018-09-21 18:21:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:21:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:21:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:21:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:21:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:21:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:21:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:21:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:21:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:21:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:21:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-21 18:21:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2f [2018-09-21 18:21:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:21:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:21:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:21:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:21:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:21:59,476 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:21:59,510 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:21:59,561 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:21:59,569 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:00,506 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:00,528 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:03,553 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:03,609 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:09,862 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:12,044 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:22:13,113 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:22:13,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:13 BoogieIcfgContainer [2018-09-21 18:22:13,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:22:13,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:22:13,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:22:13,119 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:22:13,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:21:58" (1/3) ... [2018-09-21 18:22:13,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6643e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:22:13, skipping insertion in model container [2018-09-21 18:22:13,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:21:58" (2/3) ... [2018-09-21 18:22:13,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6643e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:22:13, skipping insertion in model container [2018-09-21 18:22:13,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:13" (3/3) ... [2018-09-21 18:22:13,124 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0660b_true-unreach-call.c [2018-09-21 18:22:13,135 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:22:13,145 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:22:13,192 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:22:13,193 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:22:13,194 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:22:13,194 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:22:13,194 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:22:13,194 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:22:13,194 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:22:13,194 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:22:13,195 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:22:13,214 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2018-09-21 18:22:13,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-21 18:22:13,227 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:13,229 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:22:13,232 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:13,238 INFO L82 PathProgramCache]: Analyzing trace with hash 74004840, now seen corresponding path program 1 times [2018-09-21 18:22:13,251 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:22:13,252 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:22:13,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:13,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:22:13,403 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 18:22:13,403 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:22:13,416 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:13,417 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:22:13,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:22:13,437 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:22:13,438 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:22:13,441 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2018-09-21 18:22:13,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:22:13,487 INFO L93 Difference]: Finished difference Result 157 states and 197 transitions. [2018-09-21 18:22:13,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:22:13,491 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-21 18:22:13,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:22:13,510 INFO L225 Difference]: With dead ends: 157 [2018-09-21 18:22:13,516 INFO L226 Difference]: Without dead ends: 152 [2018-09-21 18:22:13,518 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 18:22:13,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-09-21 18:22:13,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-09-21 18:22:13,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-09-21 18:22:13,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 191 transitions. [2018-09-21 18:22:13,576 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 191 transitions. Word has length 19 [2018-09-21 18:22:13,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:22:13,576 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 191 transitions. [2018-09-21 18:22:13,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:22:13,577 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 191 transitions. [2018-09-21 18:22:13,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-21 18:22:13,578 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:13,579 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] [2018-09-21 18:22:13,579 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:13,579 INFO L82 PathProgramCache]: Analyzing trace with hash -139830086, now seen corresponding path program 1 times [2018-09-21 18:22:13,581 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:22:13,581 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 18:22:13,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:13,738 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:22:13,878 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 18:22:13,885 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 18:22:13,885 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:13,895 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:13,928 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 18:22:13,929 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-21 18:22:14,115 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 18:22:14,138 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 18:22:14,139 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:14,162 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:14,217 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 18:22:14,218 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-21 18:22:14,668 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 18:22:14,683 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 18:22:14,684 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:14,710 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:14,799 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:22:14,800 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:35, output treesize:36 [2018-09-21 18:22:14,955 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 18:22:14,961 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 18:22:14,961 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:14,968 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:15,013 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 18:22:15,014 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:43, output treesize:24 [2018-09-21 18:22:15,551 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 18:22:15,551 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:22:15,568 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:15,568 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-21 18:22:15,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-21 18:22:15,571 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-21 18:22:15,571 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:22:15,572 INFO L87 Difference]: Start difference. First operand 152 states and 191 transitions. Second operand 14 states. [2018-09-21 18:22:17,776 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-09-21 18:22:18,201 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-21 18:22:20,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:22:20,601 INFO L93 Difference]: Finished difference Result 154 states and 192 transitions. [2018-09-21 18:22:20,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-21 18:22:20,606 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2018-09-21 18:22:20,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:22:20,609 INFO L225 Difference]: With dead ends: 154 [2018-09-21 18:22:20,610 INFO L226 Difference]: Without dead ends: 152 [2018-09-21 18:22:20,611 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2018-09-21 18:22:20,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-09-21 18:22:20,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-09-21 18:22:20,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-09-21 18:22:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2018-09-21 18:22:20,626 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 37 [2018-09-21 18:22:20,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:22:20,627 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2018-09-21 18:22:20,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-21 18:22:20,628 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2018-09-21 18:22:20,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:22:20,630 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:20,630 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] [2018-09-21 18:22:20,631 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:20,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1076772893, now seen corresponding path program 1 times [2018-09-21 18:22:20,632 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:22:20,632 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 18:22:20,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:20,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:22:20,780 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 18:22:20,785 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 18:22:20,785 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:20,790 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:20,809 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 18:22:20,809 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:22:20,827 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 18:22:20,832 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 18:22:20,832 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:20,835 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:20,839 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 18:22:20,839 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:22:20,969 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 18:22:20,969 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:22:20,981 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:20,981 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:22:20,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:22:20,982 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:22:20,982 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:22:20,984 INFO L87 Difference]: Start difference. First operand 152 states and 190 transitions. Second operand 9 states. [2018-09-21 18:22:23,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:22:23,297 INFO L93 Difference]: Finished difference Result 197 states and 251 transitions. [2018-09-21 18:22:23,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:22:23,299 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-09-21 18:22:23,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:22:23,302 INFO L225 Difference]: With dead ends: 197 [2018-09-21 18:22:23,303 INFO L226 Difference]: Without dead ends: 145 [2018-09-21 18:22:23,303 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:22:23,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-09-21 18:22:23,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-09-21 18:22:23,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-09-21 18:22:23,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 175 transitions. [2018-09-21 18:22:23,332 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 175 transitions. Word has length 42 [2018-09-21 18:22:23,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:22:23,333 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 175 transitions. [2018-09-21 18:22:23,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:22:23,333 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 175 transitions. [2018-09-21 18:22:23,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-21 18:22:23,335 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:23,337 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] [2018-09-21 18:22:23,338 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:23,338 INFO L82 PathProgramCache]: Analyzing trace with hash -957616091, now seen corresponding path program 1 times [2018-09-21 18:22:23,338 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:22:23,339 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 18:22:23,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:23,424 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:22:23,549 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 18:22:23,563 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 18:22:23,564 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:23,590 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:23,613 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 18:22:23,613 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:22:23,634 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 18:22:23,638 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 18:22:23,639 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:23,642 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:23,646 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 18:22:23,647 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:22:24,121 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 18:22:24,122 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:22:24,139 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:24,139 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:22:24,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:22:24,139 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:22:24,140 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:22:24,140 INFO L87 Difference]: Start difference. First operand 145 states and 175 transitions. Second operand 10 states. [2018-09-21 18:22:28,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:22:28,320 INFO L93 Difference]: Finished difference Result 197 states and 243 transitions. [2018-09-21 18:22:28,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:22:28,321 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2018-09-21 18:22:28,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:22:28,323 INFO L225 Difference]: With dead ends: 197 [2018-09-21 18:22:28,323 INFO L226 Difference]: Without dead ends: 143 [2018-09-21 18:22:28,324 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2018-09-21 18:22:28,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-09-21 18:22:28,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-09-21 18:22:28,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-09-21 18:22:28,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 169 transitions. [2018-09-21 18:22:28,334 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 169 transitions. Word has length 42 [2018-09-21 18:22:28,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:22:28,335 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 169 transitions. [2018-09-21 18:22:28,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:22:28,335 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 169 transitions. [2018-09-21 18:22:28,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-21 18:22:28,337 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:28,338 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] [2018-09-21 18:22:28,338 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:28,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1634557009, now seen corresponding path program 1 times [2018-09-21 18:22:28,340 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:22:28,340 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 18:22:28,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:28,453 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:22:28,755 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:22:29,126 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-21 18:22:29,136 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 18:22:29,136 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:22:29,149 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:29,150 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 18:22:29,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 18:22:29,150 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 18:22:29,151 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-09-21 18:22:29,151 INFO L87 Difference]: Start difference. First operand 143 states and 169 transitions. Second operand 6 states. [2018-09-21 18:22:35,835 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:22:36,059 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-21 18:22:39,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:22:39,026 INFO L93 Difference]: Finished difference Result 147 states and 172 transitions. [2018-09-21 18:22:39,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-21 18:22:39,027 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-09-21 18:22:39,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:22:39,029 INFO L225 Difference]: With dead ends: 147 [2018-09-21 18:22:39,029 INFO L226 Difference]: Without dead ends: 143 [2018-09-21 18:22:39,030 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:22:39,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-09-21 18:22:39,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-09-21 18:22:39,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-09-21 18:22:39,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2018-09-21 18:22:39,038 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 43 [2018-09-21 18:22:39,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:22:39,039 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2018-09-21 18:22:39,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 18:22:39,039 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2018-09-21 18:22:39,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-21 18:22:39,042 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:22:39,042 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] [2018-09-21 18:22:39,043 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:22:39,043 INFO L82 PathProgramCache]: Analyzing trace with hash -177997281, now seen corresponding path program 1 times [2018-09-21 18:22:39,043 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:22:39,043 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 18:22:39,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:22:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:22:39,160 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:22:39,199 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 18:22:39,204 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 18:22:39,205 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:39,215 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:39,226 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 18:22:39,226 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:22:39,260 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 18:22:39,264 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 18:22:39,264 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:22:39,269 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:22:39,273 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 18:22:39,273 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:22:39,798 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:22:40,198 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 18:22:40,198 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:22:40,209 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:22:40,209 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-21 18:22:40,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-21 18:22:40,210 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-21 18:22:40,210 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2018-09-21 18:22:40,210 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand 12 states. [2018-09-21 18:22:41,092 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-21 18:22:41,877 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2018-09-21 18:22:42,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:22:42,954 INFO L93 Difference]: Finished difference Result 139 states and 163 transitions. [2018-09-21 18:22:42,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-21 18:22:42,956 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2018-09-21 18:22:42,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:22:42,956 INFO L225 Difference]: With dead ends: 139 [2018-09-21 18:22:42,957 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:22:42,958 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2018-09-21 18:22:42,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:22:42,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:22:42,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:22:42,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:22:42,960 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-09-21 18:22:42,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:22:42,960 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:22:42,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-21 18:22:42,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:22:42,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:22:42,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:22:42 BoogieIcfgContainer [2018-09-21 18:22:42,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:22:42,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:22:42,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:22:42,968 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:22:42,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:22:13" (3/4) ... [2018-09-21 18:22:42,973 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:22:42,980 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:22:42,980 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-21 18:22:42,980 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_atan2f [2018-09-21 18:22:42,981 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:22:42,981 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-09-21 18:22:42,997 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2018-09-21 18:22:42,997 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-09-21 18:22:42,998 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-21 18:22:43,097 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:22:43,098 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:22:43,098 INFO L168 Benchmark]: Toolchain (without parser) took 44762.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.9 MB). Free memory was 953.2 MB in the beginning and 942.1 MB in the end (delta: 11.1 MB). Peak memory consumption was 214.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:43,099 INFO L168 Benchmark]: CDTParser took 0.18 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 18:22:43,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 577.85 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 935.7 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:43,101 INFO L168 Benchmark]: Boogie Preprocessor took 73.37 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 18:22:43,101 INFO L168 Benchmark]: RCFGBuilder took 14123.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -143.8 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:43,102 INFO L168 Benchmark]: TraceAbstraction took 29852.12 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 949.7 MB in the end (delta: 124.5 MB). Peak memory consumption was 186.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:43,102 INFO L168 Benchmark]: Witness Printer took 130.18 ms. Allocated memory is still 1.2 GB. Free memory was 949.7 MB in the beginning and 942.1 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:22:43,106 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 577.85 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 935.7 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.37 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 14123.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -143.8 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 29852.12 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 949.7 MB in the end (delta: 124.5 MB). Peak memory consumption was 186.3 MB. Max. memory is 11.5 GB. * Witness Printer took 130.18 ms. Allocated memory is still 1.2 GB. Free memory was 949.7 MB in the beginning and 942.1 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 231]: 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, 157 locations, 1 error locations. SAFE Result, 29.7s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 24.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 986 SDtfs, 1972 SDslu, 4331 SDs, 0 SdLazy, 842 SolverSat, 99 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 18.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 264 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=157occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 221 ConstructedInterpolants, 36 QuantifiedInterpolants, 91808 SizeOfPredicates, 47 NumberOfNonLiveVariables, 655 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...