/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0920a_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_0920a_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 68aa61f206da468fa7dcfce700dfa7d384c1ee8e --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_0920a_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 68aa61f206da468fa7dcfce700dfa7d384c1ee8e --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 18:34:00,682 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:34:00,684 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:34:00,701 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:34:00,701 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:34:00,703 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:34:00,704 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:34:00,706 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:34:00,708 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:34:00,709 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:34:00,710 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:34:00,710 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:34:00,711 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:34:00,712 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:34:00,714 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:34:00,715 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:34:00,716 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:34:00,718 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:34:00,720 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:34:00,721 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:34:00,723 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:34:00,724 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:34:00,727 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:34:00,727 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:34:00,727 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:34:00,728 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:34:00,730 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:34:00,730 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:34:00,731 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:34:00,733 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:34:00,733 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:34:00,734 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:34:00,734 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:34:00,734 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:34:00,736 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:34:00,737 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:34:00,737 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:34:00,753 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:34:00,753 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:34:00,754 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:34:00,754 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:34:00,755 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:34:00,755 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:34:00,755 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:34:00,756 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:34:00,756 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:34:00,756 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:34:00,757 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:34:00,757 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:34:00,757 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:34:00,757 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:34:00,757 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:34:00,757 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:34:00,757 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:34:00,758 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:34:00,758 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:34:00,758 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:34:00,758 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:34:00,760 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:34:00,760 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:34:00,760 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:34:00,760 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:34:00,761 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:34:00,761 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:34:00,761 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:34:00,761 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:34:00,762 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 -> 68aa61f206da468fa7dcfce700dfa7d384c1ee8e 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 18:34:00,832 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:34:00,850 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:34:00,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:34:00,858 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:34:00,860 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:34:00,860 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0920a_true-unreach-call.c [2018-09-21 18:34:01,228 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b6204534/df57b8ca5ba940808ea9ebf24de99f32/FLAGaef411989 [2018-09-21 18:34:01,394 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:34:01,394 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0920a_true-unreach-call.c [2018-09-21 18:34:01,403 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b6204534/df57b8ca5ba940808ea9ebf24de99f32/FLAGaef411989 [2018-09-21 18:34:01,420 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b6204534/df57b8ca5ba940808ea9ebf24de99f32 [2018-09-21 18:34:01,424 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:34:01,429 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:34:01,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:34:01,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:34:01,437 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:34:01,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:34:01" (1/1) ... [2018-09-21 18:34:01,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f89614f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:01, skipping insertion in model container [2018-09-21 18:34:01,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:34:01" (1/1) ... [2018-09-21 18:34:01,452 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:34:01,724 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:34:01,741 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:34:01,770 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:34:01,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:01 WrapperNode [2018-09-21 18:34:01,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:34:01,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:34:01,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:34:01,804 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:34:01,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:01" (1/1) ... [2018-09-21 18:34:01,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:01" (1/1) ... [2018-09-21 18:34:01,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:01" (1/1) ... [2018-09-21 18:34:01,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:01" (1/1) ... [2018-09-21 18:34:01,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:01" (1/1) ... [2018-09-21 18:34:01,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:01" (1/1) ... [2018-09-21 18:34:01,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:01" (1/1) ... [2018-09-21 18:34:01,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:34:01,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:34:01,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:34:01,858 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:34:01,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:01" (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 18:34:02,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:34:02,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:34:02,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:34:02,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-21 18:34:02,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:34:02,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2018-09-21 18:34:02,008 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:34:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:34:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:34:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:34:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:34:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:34:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:34:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:34:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-21 18:34:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:34:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:34:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:34:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2018-09-21 18:34:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:34:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:34:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:34:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:34:02,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:34:02,820 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:34:02,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:34:02 BoogieIcfgContainer [2018-09-21 18:34:02,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:34:02,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:34:02,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:34:02,828 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:34:02,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:34:01" (1/3) ... [2018-09-21 18:34:02,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2158b43f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:34:02, skipping insertion in model container [2018-09-21 18:34:02,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:01" (2/3) ... [2018-09-21 18:34:02,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2158b43f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:34:02, skipping insertion in model container [2018-09-21 18:34:02,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:34:02" (3/3) ... [2018-09-21 18:34:02,833 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a_true-unreach-call.c [2018-09-21 18:34:02,843 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:34:02,853 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:34:02,895 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:34:02,896 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:34:02,896 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:34:02,896 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:34:02,897 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:34:02,897 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:34:02,897 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:34:02,897 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:34:02,897 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:34:02,913 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2018-09-21 18:34:02,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-21 18:34:02,926 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:34:02,927 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:34:02,930 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:34:02,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1912320970, now seen corresponding path program 1 times [2018-09-21 18:34:02,938 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:34:02,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:34:02,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:34:02,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:34:02,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:34:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:34:03,153 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 18:34:03,156 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:34:03,156 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 18:34:03,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 18:34:03,177 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 18:34:03,179 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:34:03,182 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2018-09-21 18:34:03,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:34:03,297 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2018-09-21 18:34:03,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 18:34:03,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-09-21 18:34:03,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:34:03,313 INFO L225 Difference]: With dead ends: 87 [2018-09-21 18:34:03,314 INFO L226 Difference]: Without dead ends: 81 [2018-09-21 18:34:03,315 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:34:03,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-21 18:34:03,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-09-21 18:34:03,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-21 18:34:03,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 91 transitions. [2018-09-21 18:34:03,361 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 91 transitions. Word has length 23 [2018-09-21 18:34:03,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:34:03,361 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 91 transitions. [2018-09-21 18:34:03,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 18:34:03,361 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 91 transitions. [2018-09-21 18:34:03,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-21 18:34:03,368 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:34:03,368 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:34:03,368 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:34:03,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1372062422, now seen corresponding path program 1 times [2018-09-21 18:34:03,369 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:34:03,369 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:34:03,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:34:03,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:34:03,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:34:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:34:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:34:03,561 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:34:03,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:34:03 BoogieIcfgContainer [2018-09-21 18:34:03,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:34:03,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:34:03,638 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:34:03,638 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:34:03,639 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:34:02" (3/4) ... [2018-09-21 18:34:03,644 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:34:03,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:34:03,645 INFO L168 Benchmark]: Toolchain (without parser) took 2219.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -127.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:34:03,647 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:34:03,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.02 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:34:03,649 INFO L168 Benchmark]: Boogie Preprocessor took 54.23 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:34:03,649 INFO L168 Benchmark]: RCFGBuilder took 962.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:34:03,650 INFO L168 Benchmark]: TraceAbstraction took 815.33 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: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:34:03,651 INFO L168 Benchmark]: Witness Printer took 6.28 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 18:34:03,656 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 373.02 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.23 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 962.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 815.33 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: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. * Witness Printer took 6.28 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: 140]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [\old(Lg1_log)=10737418256, \old(Lg2_log)=10737418258, \old(Lg3_log)=10737418240, \old(Lg4_log)=10737418243, \old(Lg5_log)=10737418246, \old(Lg6_log)=10737418255, \old(Lg7_log)=10737418253, \old(ln2_hi_log)=10737418242, \old(ln2_lo_log)=10737418249, \old(two25_log)=10737418252, \old(zero_log)=10737418251, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L132] float x = __VERIFIER_nondet_float(); [L134] EXPR x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, x < 0 && isfinite_float(x)=1, zero_log=0] [L134] COND TRUE, EXPR x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, x < 0 && isfinite_float(x)=1, zero_log=0] [L134] CALL, EXPR isfinite_float(x) VAL [\old(x)=10737418244, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L115] __int32_t ix; VAL [\old(x)=10737418244, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L117] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10737418244, gf_u={10737418254:0}, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L118] FCALL gf_u.value = (x) VAL [\old(x)=10737418244, gf_u={10737418254:0}, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L119] EXPR, FCALL gf_u.word VAL [\old(x)=10737418244, gf_u={10737418254:0}, gf_u.word=10737418239, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L119] (ix) = gf_u.word VAL [\old(x)=10737418244, gf_u={10737418254:0}, gf_u.word=10737418239, ix=2147483647, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L119] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=10737418247, \old(x)=10737418244, gf_u={10737418254:0}, gf_u.word=10737418239, ix=2147483647, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L120] COND FALSE !(0) VAL [\old(x)=10737418244, ix=2147483647, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L121] ix &= 0x7fffffff [L122] RET return (((ix) < 0x7f800000L)); VAL [\old(x)=10737418244, \result=1, ix=2139095039, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L134] EXPR isfinite_float(x) VAL [isfinite_float(x)=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, x < 0 && isfinite_float(x)=1, zero_log=0] [L134] EXPR x < 0 && isfinite_float(x) VAL [isfinite_float(x)=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, x < 0 && isfinite_float(x)=1, zero_log=0] [L134] COND TRUE (x < 0 && isfinite_float(x)) [L136] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=10737418244, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [\old(x)=10737418244, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L37] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=10737418244, gf_u={10737418245:0}, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L38] FCALL gf_u.value = (x) VAL [\old(x)=10737418244, gf_u={10737418245:0}, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L39] EXPR, FCALL gf_u.word VAL [\old(x)=10737418244, gf_u={10737418245:0}, gf_u.word=6442450944, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L39] (ix) = gf_u.word VAL [\old(x)=10737418244, gf_u={10737418245:0}, gf_u.word=6442450944, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L39] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=10737418257, \old(x)=10737418244, gf_u={10737418245:0}, gf_u.word=6442450944, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L40] COND FALSE !(0) VAL [\old(x)=10737418244, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L42] k = 0 VAL [\old(x)=10737418244, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] RET return -two25_log / zero_log; VAL [\old(x)=10737418244, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L136] EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=10737418248, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418244, zero_log=0] [L136] float res = __ieee754_logf(x); [L139] CALL, EXPR isnan_float(res) VAL [\old(x)=10737418248, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L111] RET return x != x; VAL [\old(x)=10737418248, \result=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=10737418248, zero_log=0] [L139] EXPR isnan_float(res) VAL [isnan_float(res)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=10737418248, two25_log=33554432, x=10737418244, zero_log=0] [L139] COND TRUE !isnan_float(res) [L140] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=10737418248, two25_log=33554432, x=10737418244, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 100 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 97 SDtfs, 0 SDslu, 92 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred 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, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 506 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 18:34:06,087 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:34:06,089 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:34:06,101 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:34:06,101 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:34:06,102 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:34:06,104 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:34:06,105 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:34:06,107 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:34:06,108 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:34:06,109 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:34:06,109 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:34:06,110 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:34:06,111 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:34:06,112 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:34:06,113 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:34:06,114 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:34:06,116 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:34:06,118 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:34:06,119 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:34:06,120 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:34:06,122 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:34:06,124 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:34:06,124 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:34:06,124 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:34:06,125 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:34:06,126 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:34:06,127 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:34:06,128 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:34:06,129 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:34:06,129 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:34:06,130 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:34:06,130 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:34:06,130 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:34:06,131 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:34:06,132 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:34:06,132 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:34:06,147 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:34:06,148 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:34:06,148 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:34:06,149 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:34:06,149 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:34:06,149 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:34:06,150 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:34:06,150 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:34:06,150 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:34:06,150 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:34:06,150 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:34:06,151 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:34:06,151 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:34:06,151 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:34:06,151 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:34:06,151 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:34:06,151 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:34:06,152 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:34:06,152 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:34:06,152 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:34:06,152 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:34:06,152 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:34:06,152 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:34:06,153 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:34:06,153 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:34:06,153 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:34:06,153 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:34:06,153 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:34:06,154 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:34:06,154 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:34:06,154 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:34:06,154 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 -> 68aa61f206da468fa7dcfce700dfa7d384c1ee8e 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 18:34:06,220 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:34:06,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:34:06,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:34:06,240 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:34:06,240 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:34:06,241 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0920a_true-unreach-call.c [2018-09-21 18:34:06,627 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87dcba3b1/5da5fdae6c374dc0ad5b959a4e6ffd82/FLAGd1a492130 [2018-09-21 18:34:06,810 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:34:06,811 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0920a_true-unreach-call.c [2018-09-21 18:34:06,820 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87dcba3b1/5da5fdae6c374dc0ad5b959a4e6ffd82/FLAGd1a492130 [2018-09-21 18:34:06,850 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87dcba3b1/5da5fdae6c374dc0ad5b959a4e6ffd82 [2018-09-21 18:34:06,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:34:06,862 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:34:06,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:34:06,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:34:06,873 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:34:06,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:34:06" (1/1) ... [2018-09-21 18:34:06,878 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@312a656a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:06, skipping insertion in model container [2018-09-21 18:34:06,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:34:06" (1/1) ... [2018-09-21 18:34:06,890 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:34:07,201 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:34:07,236 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:34:07,307 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:34:07,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:07 WrapperNode [2018-09-21 18:34:07,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:34:07,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:34:07,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:34:07,371 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:34:07,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:07" (1/1) ... [2018-09-21 18:34:07,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:07" (1/1) ... [2018-09-21 18:34:07,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:07" (1/1) ... [2018-09-21 18:34:07,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:07" (1/1) ... [2018-09-21 18:34:07,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:07" (1/1) ... [2018-09-21 18:34:07,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:07" (1/1) ... [2018-09-21 18:34:07,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:07" (1/1) ... [2018-09-21 18:34:07,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:34:07,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:34:07,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:34:07,468 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:34:07,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:07" (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 18:34:07,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:34:07,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:34:07,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-21 18:34:07,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-21 18:34:07,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:34:07,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2018-09-21 18:34:07,614 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:34:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:34:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:34:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-21 18:34:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:34:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:34:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:34:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:34:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-21 18:34:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:34:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:34:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:34:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2018-09-21 18:34:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:34:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:34:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:34:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:34:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:34:07,912 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:34:07,931 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:34:08,084 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:34:08,105 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:34:22,189 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:34:22,212 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:34:23,177 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:34:23,189 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:34:23,214 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:34:23,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:34:23 BoogieIcfgContainer [2018-09-21 18:34:23,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:34:23,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:34:23,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:34:23,220 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:34:23,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:34:06" (1/3) ... [2018-09-21 18:34:23,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7348300d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:34:23, skipping insertion in model container [2018-09-21 18:34:23,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:34:07" (2/3) ... [2018-09-21 18:34:23,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7348300d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:34:23, skipping insertion in model container [2018-09-21 18:34:23,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:34:23" (3/3) ... [2018-09-21 18:34:23,224 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a_true-unreach-call.c [2018-09-21 18:34:23,234 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:34:23,242 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:34:23,283 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:34:23,284 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:34:23,285 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:34:23,285 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:34:23,285 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:34:23,285 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:34:23,285 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:34:23,285 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:34:23,285 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:34:23,302 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2018-09-21 18:34:23,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-21 18:34:23,314 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:34:23,315 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:34:23,317 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:34:23,323 INFO L82 PathProgramCache]: Analyzing trace with hash 2003181301, now seen corresponding path program 1 times [2018-09-21 18:34:23,328 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:34:23,328 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 18:34:23,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:34:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:34:23,621 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:34:23,642 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 18:34:23,642 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:34:23,663 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:34:23,664 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:34:23,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:34:23,680 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:34:23,681 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:34:23,683 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 2 states. [2018-09-21 18:34:23,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:34:23,707 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2018-09-21 18:34:23,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:34:23,708 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-21 18:34:23,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:34:23,722 INFO L225 Difference]: With dead ends: 85 [2018-09-21 18:34:23,723 INFO L226 Difference]: Without dead ends: 80 [2018-09-21 18:34:23,724 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:34:23,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-09-21 18:34:23,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-09-21 18:34:23,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-09-21 18:34:23,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2018-09-21 18:34:23,778 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 22 [2018-09-21 18:34:23,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:34:23,779 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2018-09-21 18:34:23,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:34:23,779 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2018-09-21 18:34:23,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:34:23,781 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:34:23,781 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:34:23,781 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:34:23,782 INFO L82 PathProgramCache]: Analyzing trace with hash -471455815, now seen corresponding path program 1 times [2018-09-21 18:34:23,782 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:34:23,783 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 18:34:23,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:34:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:34:24,076 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:34:24,100 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 18:34:24,100 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:34:24,113 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:34:24,113 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 18:34:24,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 18:34:24,116 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 18:34:24,116 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:34:24,116 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand 3 states. [2018-09-21 18:34:24,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:34:24,139 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2018-09-21 18:34:24,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 18:34:24,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-09-21 18:34:24,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:34:24,146 INFO L225 Difference]: With dead ends: 81 [2018-09-21 18:34:24,146 INFO L226 Difference]: Without dead ends: 80 [2018-09-21 18:34:24,147 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:34:24,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-09-21 18:34:24,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-09-21 18:34:24,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-09-21 18:34:24,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 90 transitions. [2018-09-21 18:34:24,157 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 90 transitions. Word has length 31 [2018-09-21 18:34:24,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:34:24,157 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 90 transitions. [2018-09-21 18:34:24,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 18:34:24,157 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 90 transitions. [2018-09-21 18:34:24,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-21 18:34:24,159 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:34:24,159 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:24,160 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:34:24,160 INFO L82 PathProgramCache]: Analyzing trace with hash 100713076, now seen corresponding path program 1 times [2018-09-21 18:34:24,161 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:34:24,161 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 18:34:24,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:34:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:34:24,471 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:34:24,675 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:34:24,811 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 18:34:24,830 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 18:34:24,831 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:34:24,840 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:24,852 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 18:34:24,853 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:34:24,922 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 18:34:24,945 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 18:34:24,945 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:34:24,970 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:24,997 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 18:34:24,998 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:34:25,351 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 18:34:25,351 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:34:25,369 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:34:25,369 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:34:25,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:34:25,371 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:34:25,371 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:34:25,371 INFO L87 Difference]: Start difference. First operand 80 states and 90 transitions. Second operand 9 states. [2018-09-21 18:34:30,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:34:30,639 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2018-09-21 18:34:30,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:34:30,641 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-09-21 18:34:30,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:34:30,646 INFO L225 Difference]: With dead ends: 90 [2018-09-21 18:34:30,646 INFO L226 Difference]: Without dead ends: 88 [2018-09-21 18:34:30,647 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:34:30,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-09-21 18:34:30,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 80. [2018-09-21 18:34:30,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-09-21 18:34:30,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2018-09-21 18:34:30,657 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 47 [2018-09-21 18:34:30,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:34:30,659 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2018-09-21 18:34:30,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:34:30,659 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2018-09-21 18:34:30,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-21 18:34:30,661 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:34:30,661 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:34:30,662 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:34:30,662 INFO L82 PathProgramCache]: Analyzing trace with hash -236820640, now seen corresponding path program 1 times [2018-09-21 18:34:30,663 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:34:30,663 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 18:34:30,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:34:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:34:31,045 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:34:31,809 WARN L178 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-21 18:34:32,423 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 18:34:32,424 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:34:32,441 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:34:32,441 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:34:32,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:34:32,442 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:34:32,442 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:34:32,443 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand 8 states. [2018-09-21 18:34:33,887 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-21 18:34:34,288 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-21 18:34:35,010 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-09-21 18:34:49,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:34:49,097 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2018-09-21 18:34:49,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-21 18:34:49,099 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2018-09-21 18:34:49,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:34:49,101 INFO L225 Difference]: With dead ends: 85 [2018-09-21 18:34:49,101 INFO L226 Difference]: Without dead ends: 80 [2018-09-21 18:34:49,102 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-09-21 18:34:49,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-09-21 18:34:49,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-09-21 18:34:49,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-09-21 18:34:49,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2018-09-21 18:34:49,113 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 48 [2018-09-21 18:34:49,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:34:49,114 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2018-09-21 18:34:49,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:34:49,114 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2018-09-21 18:34:49,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-21 18:34:49,116 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:34:49,116 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:34:49,117 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:34:49,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1398482032, now seen corresponding path program 1 times [2018-09-21 18:34:49,118 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:34:49,119 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 18:34:49,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:34:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:34:49,217 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:34:49,293 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 18:34:49,298 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 18:34:49,298 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:34:49,302 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:49,317 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 18:34:49,318 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:34:49,344 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 18:34:49,348 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 18:34:49,348 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:34:49,376 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:34:49,379 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 18:34:49,379 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:34:49,470 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 18:34:49,471 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:34:49,483 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:34:49,483 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:34:49,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:34:49,484 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:34:49,484 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:34:49,485 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 9 states. [2018-09-21 18:34:53,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:34:53,496 INFO L93 Difference]: Finished difference Result 80 states and 87 transitions. [2018-09-21 18:34:53,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:34:53,497 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2018-09-21 18:34:53,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:34:53,498 INFO L225 Difference]: With dead ends: 80 [2018-09-21 18:34:53,498 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:34:53,499 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:34:53,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:34:53,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:34:53,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:34:53,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:34:53,500 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-09-21 18:34:53,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:34:53,500 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:34:53,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:34:53,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:34:53,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:34:53,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:34:53 BoogieIcfgContainer [2018-09-21 18:34:53,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:34:53,507 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:34:53,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:34:53,507 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:34:53,508 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:34:23" (3/4) ... [2018-09-21 18:34:53,511 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:34:53,518 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-21 18:34:53,518 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:34:53,518 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-09-21 18:34:53,518 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-09-21 18:34:53,519 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isfinite_float [2018-09-21 18:34:53,519 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:34:53,527 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2018-09-21 18:34:53,528 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-09-21 18:34:53,528 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 18:34:53,528 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:34:53,639 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:34:53,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:34:53,641 INFO L168 Benchmark]: Toolchain (without parser) took 46784.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 951.8 MB in the beginning and 856.8 MB in the end (delta: 95.1 MB). Peak memory consumption was 219.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:34:53,642 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 18:34:53,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 507.24 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:34:53,643 INFO L168 Benchmark]: Boogie Preprocessor took 96.33 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:34:53,643 INFO L168 Benchmark]: RCFGBuilder took 15747.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -147.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:34:53,643 INFO L168 Benchmark]: TraceAbstraction took 30289.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 863.7 MB in the end (delta: 213.1 MB). Peak memory consumption was 213.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:34:53,644 INFO L168 Benchmark]: Witness Printer took 133.11 ms. Allocated memory is still 1.2 GB. Free memory was 863.7 MB in the beginning and 856.8 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:34:53,648 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 507.24 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 96.33 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 15747.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -147.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 30289.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 863.7 MB in the end (delta: 213.1 MB). Peak memory consumption was 213.1 MB. Max. memory is 11.5 GB. * Witness Printer took 133.11 ms. Allocated memory is still 1.2 GB. Free memory was 863.7 MB in the beginning and 856.8 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 140]: 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 7 procedures, 99 locations, 1 error locations. SAFE Result, 30.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 26.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 414 SDtfs, 166 SDslu, 1335 SDs, 0 SdLazy, 270 SolverSat, 16 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 23.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 192 ConstructedInterpolants, 9 QuantifiedInterpolants, 34434 SizeOfPredicates, 20 NumberOfNonLiveVariables, 560 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...