/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1210_false-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_1210_false-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 36fce2ac9d239f0bf9286aa317af7b50704c65b6 --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_1210_false-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 36fce2ac9d239f0bf9286aa317af7b50704c65b6 --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:41:42,822 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:41:42,824 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:41:42,838 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:41:42,838 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:41:42,839 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:41:42,841 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:41:42,843 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:41:42,845 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:41:42,846 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:41:42,847 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:41:42,848 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:41:42,848 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:41:42,849 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:41:42,851 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:41:42,851 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:41:42,852 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:41:42,855 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:41:42,857 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:41:42,859 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:41:42,860 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:41:42,862 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:41:42,864 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:41:42,865 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:41:42,865 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:41:42,866 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:41:42,867 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:41:42,868 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:41:42,869 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:41:42,871 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:41:42,871 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:41:42,872 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:41:42,872 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:41:42,872 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:41:42,874 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:41:42,875 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:41:42,875 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:41:42,892 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:41:42,892 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:41:42,893 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:41:42,893 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:41:42,894 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:41:42,894 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:41:42,895 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:41:42,895 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:41:42,895 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:41:42,895 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:41:42,895 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:41:42,895 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:41:42,896 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:41:42,896 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:41:42,896 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:41:42,896 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:41:42,898 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:41:42,898 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:41:42,898 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:41:42,898 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:41:42,898 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:41:42,899 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:41:42,899 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:41:42,899 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:41:42,899 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:41:42,900 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:41:42,900 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:41:42,901 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:41:42,901 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:41:42,901 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 -> 36fce2ac9d239f0bf9286aa317af7b50704c65b6 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 18:41:42,971 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:41:42,988 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:41:42,994 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:41:42,996 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:41:42,996 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:41:42,997 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1210_false-unreach-call.c [2018-09-21 18:41:43,380 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2009a1d7f/c63598b9c4684b5fb224a92db7f19e1e/FLAG5b7208184 [2018-09-21 18:41:43,534 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:41:43,535 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1210_false-unreach-call.c [2018-09-21 18:41:43,542 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2009a1d7f/c63598b9c4684b5fb224a92db7f19e1e/FLAG5b7208184 [2018-09-21 18:41:43,558 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2009a1d7f/c63598b9c4684b5fb224a92db7f19e1e [2018-09-21 18:41:43,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:41:43,565 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:41:43,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:41:43,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:41:43,574 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:41:43,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:41:43" (1/1) ... [2018-09-21 18:41:43,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@352e4b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:43, skipping insertion in model container [2018-09-21 18:41:43,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:41:43" (1/1) ... [2018-09-21 18:41:43,591 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:41:43,804 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:41:43,830 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:41:43,848 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:41:43,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:43 WrapperNode [2018-09-21 18:41:43,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:41:43,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:41:43,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:41:43,873 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:41:43,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:43" (1/1) ... [2018-09-21 18:41:43,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:43" (1/1) ... [2018-09-21 18:41:43,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:43" (1/1) ... [2018-09-21 18:41:43,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:43" (1/1) ... [2018-09-21 18:41:43,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:43" (1/1) ... [2018-09-21 18:41:43,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:43" (1/1) ... [2018-09-21 18:41:43,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:43" (1/1) ... [2018-09-21 18:41:43,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:41:43,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:41:43,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:41:43,929 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:41:43,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:43" (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 18:41:43,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:41:43,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:41:43,993 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2018-09-21 18:41:43,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:41:43,993 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:41:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:41:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2018-09-21 18:41:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:41:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:41:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:41:43,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:41:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:41:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:41:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:41:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:41:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:41:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:41:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:41:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:41:44,890 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:41:44,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:41:44 BoogieIcfgContainer [2018-09-21 18:41:44,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:41:44,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:41:44,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:41:44,902 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:41:44,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:41:43" (1/3) ... [2018-09-21 18:41:44,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6350b81f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:41:44, skipping insertion in model container [2018-09-21 18:41:44,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:43" (2/3) ... [2018-09-21 18:41:44,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6350b81f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:41:44, skipping insertion in model container [2018-09-21 18:41:44,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:41:44" (3/3) ... [2018-09-21 18:41:44,910 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210_false-unreach-call.c [2018-09-21 18:41:44,921 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:41:44,935 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:41:44,984 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:41:44,985 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:41:44,985 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:41:44,985 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:41:44,985 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:41:44,986 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:41:44,986 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:41:44,987 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:41:44,987 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:41:45,008 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2018-09-21 18:41:45,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-21 18:41:45,022 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:41:45,023 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] [2018-09-21 18:41:45,026 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:41:45,032 INFO L82 PathProgramCache]: Analyzing trace with hash -99224805, now seen corresponding path program 1 times [2018-09-21 18:41:45,034 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:41:45,035 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:41:45,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:41:45,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:41:45,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:41:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:41:45,185 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 18:41:45,188 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:41:45,188 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:41:45,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:41:45,210 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:41:45,211 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:41:45,214 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2018-09-21 18:41:45,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:41:45,241 INFO L93 Difference]: Finished difference Result 109 states and 113 transitions. [2018-09-21 18:41:45,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:41:45,243 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-09-21 18:41:45,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:41:45,256 INFO L225 Difference]: With dead ends: 109 [2018-09-21 18:41:45,256 INFO L226 Difference]: Without dead ends: 103 [2018-09-21 18:41:45,258 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:41:45,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-09-21 18:41:45,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2018-09-21 18:41:45,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-09-21 18:41:45,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 107 transitions. [2018-09-21 18:41:45,312 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 107 transitions. Word has length 27 [2018-09-21 18:41:45,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:41:45,312 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 107 transitions. [2018-09-21 18:41:45,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:41:45,312 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 107 transitions. [2018-09-21 18:41:45,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-21 18:41:45,316 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:41:45,316 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:41:45,316 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:41:45,317 INFO L82 PathProgramCache]: Analyzing trace with hash -748645115, now seen corresponding path program 1 times [2018-09-21 18:41:45,317 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:41:45,317 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:41:45,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:41:45,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:41:45,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:41:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:41:45,426 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 18:41:45,426 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:41:45,426 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 18:41:45,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 18:41:45,429 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 18:41:45,429 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:41:45,429 INFO L87 Difference]: Start difference. First operand 103 states and 107 transitions. Second operand 3 states. [2018-09-21 18:41:45,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:41:45,503 INFO L93 Difference]: Finished difference Result 104 states and 107 transitions. [2018-09-21 18:41:45,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 18:41:45,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2018-09-21 18:41:45,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:41:45,506 INFO L225 Difference]: With dead ends: 104 [2018-09-21 18:41:45,507 INFO L226 Difference]: Without dead ends: 103 [2018-09-21 18:41:45,508 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 18:41:45,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-09-21 18:41:45,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2018-09-21 18:41:45,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-09-21 18:41:45,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 106 transitions. [2018-09-21 18:41:45,521 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 106 transitions. Word has length 44 [2018-09-21 18:41:45,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:41:45,523 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 106 transitions. [2018-09-21 18:41:45,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 18:41:45,523 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 106 transitions. [2018-09-21 18:41:45,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-21 18:41:45,526 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:41:45,526 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:45,526 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:41:45,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1614633868, now seen corresponding path program 1 times [2018-09-21 18:41:45,527 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:41:45,527 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:41:45,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:41:45,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:41:45,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:41:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:41:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:41:45,641 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:41:45,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:41:45 BoogieIcfgContainer [2018-09-21 18:41:45,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:41:45,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:41:45,692 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:41:45,693 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:41:45,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:41:44" (3/4) ... [2018-09-21 18:41:45,698 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:41:45,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:41:45,699 INFO L168 Benchmark]: Toolchain (without parser) took 2136.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 950.5 MB in the beginning and 1.1 GB in the end (delta: -124.1 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:41:45,702 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 18:41:45,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.09 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:41:45,703 INFO L168 Benchmark]: Boogie Preprocessor took 55.76 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:41:45,704 INFO L168 Benchmark]: RCFGBuilder took 963.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -174.4 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:41:45,705 INFO L168 Benchmark]: TraceAbstraction took 793.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:41:45,706 INFO L168 Benchmark]: Witness Printer took 5.74 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 18:41:45,710 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 305.09 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.76 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 963.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -174.4 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 793.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.74 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: 86]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryArithmeticFLOAToperation at line 80, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L11] static const float one_modf = 1.0; VAL [\old(one_modf)=9, one_modf=1] [L80] float x = 0.0f / 0.0f; VAL [one_modf=1] [L81] FCALL float iptr; VAL [iptr={12:0}, one_modf=1] [L82] CALL, EXPR modf_float(x, &iptr) VAL [\old(x)=7, iptr={12:0}, one_modf=1] [L14] __int32_t i0, j0; [L15] __uint32_t i; VAL [\old(x)=7, iptr={12:0}, iptr={12:0}, one_modf=1, x=7] [L17] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=7, gf_u={8:0}, iptr={12:0}, iptr={12:0}, one_modf=1, x=7] [L18] FCALL gf_u.value = (x) VAL [\old(x)=7, gf_u={8:0}, iptr={12:0}, iptr={12:0}, one_modf=1, x=7] [L19] EXPR, FCALL gf_u.word VAL [\old(x)=7, gf_u={8:0}, gf_u.word=3, iptr={12:0}, iptr={12:0}, one_modf=1, x=7] [L19] (i0) = gf_u.word VAL [\old(x)=7, gf_u={8:0}, gf_u.word=3, i0=3, iptr={12:0}, iptr={12:0}, one_modf=1, x=7] [L19] FCALL (i0) = gf_u.word VAL [(i0) = gf_u.word=5, \old(x)=7, gf_u={8:0}, gf_u.word=3, i0=3, iptr={12:0}, iptr={12:0}, one_modf=1, x=7] [L20] COND FALSE !(0) VAL [\old(x)=7, i0=3, iptr={12:0}, iptr={12:0}, one_modf=1, x=7] [L21] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=7, i0=3, iptr={12:0}, iptr={12:0}, one_modf=1, x=7] [L22] COND TRUE j0 < 23 VAL [\old(x)=7, i0=3, iptr={12:0}, iptr={12:0}, j0=-1, one_modf=1, x=7] [L23] COND TRUE j0 < 0 VAL [\old(x)=7, i0=3, iptr={12:0}, iptr={12:0}, j0=-1, one_modf=1, x=7] [L25] FCALL ieee_float_shape_type sf_u; VAL [\old(x)=7, i0=3, iptr={12:0}, iptr={12:0}, j0=-1, one_modf=1, sf_u={14:0}, x=7] [L26] FCALL sf_u.word = (i0 & 0x80000000) VAL [\old(x)=7, i0=3, iptr={12:0}, iptr={12:0}, j0=-1, one_modf=1, sf_u={14:0}, x=7] [L27] EXPR, FCALL sf_u.value VAL [\old(x)=7, i0=3, iptr={12:0}, iptr={12:0}, j0=-1, one_modf=1, sf_u={14:0}, sf_u.value=10, x=7] [L27] FCALL (*iptr) = sf_u.value VAL [\old(x)=7, i0=3, iptr={12:0}, iptr={12:0}, j0=-1, one_modf=1, sf_u={14:0}, sf_u.value=10, x=7] [L28] COND FALSE !(0) VAL [\old(x)=7, i0=3, iptr={12:0}, iptr={12:0}, j0=-1, one_modf=1, x=7] [L29] RET return x; VAL [\old(x)=7, \result=7, i0=3, iptr={12:0}, iptr={12:0}, j0=-1, one_modf=1, x=7] [L82] EXPR modf_float(x, &iptr) VAL [iptr={12:0}, modf_float(x, &iptr)=7, one_modf=1, x=7] [L82] float res = modf_float(x, &iptr); [L85] EXPR, FCALL \read(iptr) VAL [\read(iptr)=10, iptr={12:0}, one_modf=1, res=7, x=7] [L85] CALL, EXPR isnan_float(iptr) VAL [\old(x)=10, one_modf=1] [L73] RET return x != x; VAL [\old(x)=10, \result=1, one_modf=1, x=10] [L85] EXPR isnan_float(iptr) VAL [\read(iptr)=10, iptr={12:0}, isnan_float(iptr)=1, one_modf=1, res=7, x=7] [L85] isnan_float(iptr) && !isnan_float(res) VAL [\read(iptr)=10, iptr={12:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, one_modf=1, res=7, x=7] [L85] COND TRUE isnan_float(iptr) && !isnan_float(res) VAL [\read(iptr)=10, iptr={12:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, one_modf=1, res=7, x=7] [L85] CALL, EXPR isnan_float(res) VAL [\old(x)=7, one_modf=1] [L73] RET return x != x; VAL [\old(x)=7, \result=0, one_modf=1, x=7] [L85] EXPR isnan_float(res) VAL [\read(iptr)=10, iptr={12:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, isnan_float(res)=0, one_modf=1, res=7, x=7] [L85] isnan_float(iptr) && !isnan_float(res) VAL [\read(iptr)=10, iptr={12:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, isnan_float(res)=0, one_modf=1, res=7, x=7] [L85] COND TRUE isnan_float(iptr) && !isnan_float(res) [L86] __VERIFIER_error() VAL [iptr={12:0}, one_modf=1, res=7, x=7] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 111 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 220 SDtfs, 0 SDslu, 102 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 2568 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:41:48,082 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:41:48,084 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:41:48,097 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:41:48,097 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:41:48,098 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:41:48,099 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:41:48,109 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:41:48,111 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:41:48,112 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:41:48,113 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:41:48,113 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:41:48,114 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:41:48,115 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:41:48,116 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:41:48,117 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:41:48,118 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:41:48,120 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:41:48,122 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:41:48,124 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:41:48,125 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:41:48,126 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:41:48,129 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:41:48,129 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:41:48,129 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:41:48,130 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:41:48,131 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:41:48,132 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:41:48,133 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:41:48,134 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:41:48,135 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:41:48,135 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:41:48,135 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:41:48,136 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:41:48,137 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:41:48,138 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:41:48,138 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:41:48,154 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:41:48,154 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:41:48,155 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:41:48,155 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:41:48,156 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:41:48,157 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:41:48,157 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:41:48,157 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:41:48,157 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:41:48,158 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:41:48,158 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:41:48,158 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:41:48,158 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:41:48,158 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:41:48,159 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:41:48,159 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:41:48,160 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:41:48,160 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:41:48,160 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:41:48,160 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:41:48,160 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:41:48,161 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:41:48,161 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:41:48,161 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:41:48,161 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:41:48,161 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:41:48,162 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:41:48,162 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:41:48,162 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:41:48,162 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:41:48,162 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:41:48,164 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 -> 36fce2ac9d239f0bf9286aa317af7b50704c65b6 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 18:41:48,238 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:41:48,259 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:41:48,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:41:48,267 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:41:48,268 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:41:48,269 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1210_false-unreach-call.c [2018-09-21 18:41:48,635 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931ba9250/fa0c2373c4ac4e449296f33cea9b1ce4/FLAGdf60146e8 [2018-09-21 18:41:48,762 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:41:48,763 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1210_false-unreach-call.c [2018-09-21 18:41:48,771 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931ba9250/fa0c2373c4ac4e449296f33cea9b1ce4/FLAGdf60146e8 [2018-09-21 18:41:48,788 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/931ba9250/fa0c2373c4ac4e449296f33cea9b1ce4 [2018-09-21 18:41:48,797 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:41:48,802 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:41:48,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:41:48,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:41:48,812 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:41:48,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:41:48" (1/1) ... [2018-09-21 18:41:48,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@416800b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:48, skipping insertion in model container [2018-09-21 18:41:48,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:41:48" (1/1) ... [2018-09-21 18:41:48,830 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:41:49,162 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:41:49,192 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:41:49,214 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:41:49,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:49 WrapperNode [2018-09-21 18:41:49,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:41:49,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:41:49,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:41:49,243 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:41:49,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:49" (1/1) ... [2018-09-21 18:41:49,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:49" (1/1) ... [2018-09-21 18:41:49,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:49" (1/1) ... [2018-09-21 18:41:49,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:49" (1/1) ... [2018-09-21 18:41:49,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:49" (1/1) ... [2018-09-21 18:41:49,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:49" (1/1) ... [2018-09-21 18:41:49,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:49" (1/1) ... [2018-09-21 18:41:49,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:41:49,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:41:49,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:41:49,344 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:41:49,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:49" (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 18:41:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:41:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:41:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2018-09-21 18:41:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:41:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:41:49,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:41:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2018-09-21 18:41:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:41:49,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:41:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:41:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:41:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:41:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:41:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:41:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:41:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:41:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:41:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:41:49,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:41:50,038 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:41:50,085 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:41:50,163 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:41:50,193 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:41:50,212 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:41:50,232 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:41:50,313 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:41:50,450 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:41:50,469 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:41:50,479 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:41:50,577 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:41:50,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:41:50 BoogieIcfgContainer [2018-09-21 18:41:50,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:41:50,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:41:50,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:41:50,584 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:41:50,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:41:48" (1/3) ... [2018-09-21 18:41:50,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de2b4d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:41:50, skipping insertion in model container [2018-09-21 18:41:50,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:41:49" (2/3) ... [2018-09-21 18:41:50,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de2b4d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:41:50, skipping insertion in model container [2018-09-21 18:41:50,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:41:50" (3/3) ... [2018-09-21 18:41:50,589 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210_false-unreach-call.c [2018-09-21 18:41:50,602 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:41:50,612 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:41:50,653 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:41:50,654 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:41:50,654 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:41:50,654 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:41:50,655 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:41:50,655 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:41:50,655 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:41:50,655 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:41:50,655 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:41:50,679 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2018-09-21 18:41:50,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-21 18:41:50,696 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:41:50,697 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] [2018-09-21 18:41:50,699 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:41:50,705 INFO L82 PathProgramCache]: Analyzing trace with hash -99224805, now seen corresponding path program 1 times [2018-09-21 18:41:50,709 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:41:50,709 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 18:41:50,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:41:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:41:50,790 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:41:50,815 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 18:41:50,816 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:41:50,833 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:41:50,833 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:41:50,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:41:50,854 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:41:50,855 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:41:50,857 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2018-09-21 18:41:50,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:41:50,883 INFO L93 Difference]: Finished difference Result 109 states and 113 transitions. [2018-09-21 18:41:50,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:41:50,884 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-09-21 18:41:50,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:41:50,896 INFO L225 Difference]: With dead ends: 109 [2018-09-21 18:41:50,896 INFO L226 Difference]: Without dead ends: 103 [2018-09-21 18:41:50,899 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 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 18:41:50,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-09-21 18:41:50,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2018-09-21 18:41:50,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-09-21 18:41:50,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 107 transitions. [2018-09-21 18:41:50,948 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 107 transitions. Word has length 27 [2018-09-21 18:41:50,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:41:50,948 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 107 transitions. [2018-09-21 18:41:50,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:41:50,948 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 107 transitions. [2018-09-21 18:41:50,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-21 18:41:50,952 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:41:50,952 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:41:50,952 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:41:50,953 INFO L82 PathProgramCache]: Analyzing trace with hash -748645115, now seen corresponding path program 1 times [2018-09-21 18:41:50,954 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:41:50,954 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 18:41:50,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:41:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:41:51,028 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:41:51,132 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 18:41:51,137 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 18:41:51,138 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:41:51,144 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:41:51,198 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 18:41:51,199 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:41:51,233 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 18:41:51,238 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 18:41:51,238 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:41:51,244 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:41:51,265 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 18:41:51,266 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:41:51,662 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 18:41:51,662 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:41:51,677 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:41:51,678 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:41:51,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:41:51,680 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:41:51,680 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:41:51,684 INFO L87 Difference]: Start difference. First operand 103 states and 107 transitions. Second operand 9 states. [2018-09-21 18:41:52,451 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-21 18:41:53,077 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-09-21 18:41:54,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:41:54,040 INFO L93 Difference]: Finished difference Result 107 states and 109 transitions. [2018-09-21 18:41:54,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:41:54,045 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2018-09-21 18:41:54,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:41:54,047 INFO L225 Difference]: With dead ends: 107 [2018-09-21 18:41:54,047 INFO L226 Difference]: Without dead ends: 58 [2018-09-21 18:41:54,048 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:41:54,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-21 18:41:54,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-09-21 18:41:54,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-09-21 18:41:54,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2018-09-21 18:41:54,056 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 44 [2018-09-21 18:41:54,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:41:54,057 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2018-09-21 18:41:54,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:41:54,058 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2018-09-21 18:41:54,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-21 18:41:54,060 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:41:54,060 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:41:54,061 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:41:54,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1047892344, now seen corresponding path program 1 times [2018-09-21 18:41:54,062 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:41:54,063 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) [2018-09-21 18:41:54,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:41:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:41:54,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:41:54,243 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 18:41:54,244 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:41:54,255 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:41:54,256 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 18:41:54,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 18:41:54,257 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 18:41:54,257 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:41:54,258 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 3 states. [2018-09-21 18:41:54,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:41:54,290 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2018-09-21 18:41:54,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 18:41:54,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2018-09-21 18:41:54,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:41:54,294 INFO L225 Difference]: With dead ends: 59 [2018-09-21 18:41:54,294 INFO L226 Difference]: Without dead ends: 58 [2018-09-21 18:41:54,295 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 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 18:41:54,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-21 18:41:54,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-09-21 18:41:54,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-09-21 18:41:54,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-09-21 18:41:54,301 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 55 [2018-09-21 18:41:54,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:41:54,304 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-09-21 18:41:54,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 18:41:54,304 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-09-21 18:41:54,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-21 18:41:54,307 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:41:54,307 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:41:54,308 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:41:54,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1960628487, now seen corresponding path program 1 times [2018-09-21 18:41:54,308 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:41:54,309 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 18:41:54,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:41:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:41:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:41:54,758 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:41:54,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:41:54 BoogieIcfgContainer [2018-09-21 18:41:54,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:41:54,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:41:54,878 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:41:54,878 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:41:54,880 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:41:50" (3/4) ... [2018-09-21 18:41:54,884 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-09-21 18:41:55,038 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:41:55,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:41:55,040 INFO L168 Benchmark]: Toolchain (without parser) took 6241.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 951.8 MB in the beginning and 927.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 133.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:41:55,041 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:41:55,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.54 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:41:55,043 INFO L168 Benchmark]: Boogie Preprocessor took 97.44 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:41:55,044 INFO L168 Benchmark]: RCFGBuilder took 1237.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -134.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-09-21 18:41:55,045 INFO L168 Benchmark]: TraceAbstraction took 4297.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 934.7 MB in the end (delta: 135.2 MB). Peak memory consumption was 135.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:41:55,046 INFO L168 Benchmark]: Witness Printer took 161.34 ms. Allocated memory is still 1.1 GB. Free memory was 934.7 MB in the beginning and 927.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:41:55,051 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 439.54 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 97.44 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1237.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -134.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4297.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 934.7 MB in the end (delta: 135.2 MB). Peak memory consumption was 135.2 MB. Max. memory is 11.5 GB. * Witness Printer took 161.34 ms. Allocated memory is still 1.1 GB. Free memory was 934.7 MB in the beginning and 927.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 86]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] static const float one_modf = 1.0; VAL [\old(one_modf)=0.000000000000000000000000000000000000000000007006492321624085, one_modf=1.0] [L80] float x = 0.0f / 0.0f; VAL [one_modf=1.0, x=NaN] [L81] FCALL float iptr; VAL [iptr={2:0}, one_modf=1.0, x=NaN] [L82] CALL, EXPR modf_float(x, &iptr) VAL [\old(x)=NaN, iptr={2:0}, one_modf=1.0] [L14] __int32_t i0, j0; [L15] __uint32_t i; VAL [\old(x)=NaN, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L17] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=NaN, gf_u={3:0}, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L18] FCALL gf_u.value = (x) VAL [\old(x)=NaN, gf_u={3:0}, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L19] EXPR, FCALL gf_u.word VAL [\old(x)=NaN, gf_u={3:0}, gf_u.word=2143289344, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L19] (i0) = gf_u.word VAL [\old(x)=NaN, gf_u={3:0}, gf_u.word=2143289344, i0=2143289344, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L19] FCALL (i0) = gf_u.word VAL [(i0) = gf_u.word=0.0, \old(x)=NaN, gf_u={3:0}, gf_u.word=2143289344, i0=2143289344, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L20] COND FALSE !(0) VAL [\old(x)=NaN, i0=2143289344, iptr={2:0}, iptr={2:0}, one_modf=1.0, x=NaN] [L21] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=NaN, i0=2143289344, iptr={2:0}, iptr={2:0}, j0=128, one_modf=1.0, x=NaN] [L22] COND FALSE !(j0 < 23) [L56] __uint32_t ix; VAL [\old(x)=NaN, i0=2143289344, iptr={2:0}, iptr={2:0}, j0=128, one_modf=1.0, x=NaN] [L57] FCALL *iptr = x * one_modf VAL [\old(x)=NaN, i0=2143289344, iptr={2:0}, iptr={2:0}, j0=128, one_modf=1.0, x=NaN] [L59] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=NaN, gf_u={3:0}, i0=2143289344, iptr={2:0}, iptr={2:0}, j0=128, one_modf=1.0, x=NaN] [L60] FCALL gf_u.value = (x) VAL [\old(x)=NaN, gf_u={3:0}, i0=2143289344, iptr={2:0}, iptr={2:0}, j0=128, one_modf=1.0, x=NaN] [L61] EXPR, FCALL gf_u.word VAL [\old(x)=NaN, gf_u={3:0}, gf_u.word=2143289344, i0=2143289344, iptr={2:0}, iptr={2:0}, j0=128, one_modf=1.0, x=NaN] [L61] (ix) = gf_u.word VAL [\old(x)=NaN, gf_u={3:0}, gf_u.word=2143289344, i0=2143289344, iptr={2:0}, iptr={2:0}, ix=2143289344, j0=128, one_modf=1.0, x=NaN] [L61] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=0.0, \old(x)=NaN, gf_u={3:0}, gf_u.word=2143289344, i0=2143289344, iptr={2:0}, iptr={2:0}, ix=2143289344, j0=128, one_modf=1.0, x=NaN] [L62] COND FALSE !(0) VAL [\old(x)=NaN, i0=2143289344, iptr={2:0}, iptr={2:0}, ix=2143289344, j0=128, one_modf=1.0, x=NaN] [L64] FCALL ieee_float_shape_type sf_u; VAL [\old(x)=NaN, i0=2143289344, iptr={2:0}, iptr={2:0}, ix=2143289344, j0=128, one_modf=1.0, sf_u={4194306:0}, x=NaN] [L65] FCALL sf_u.word = (ix & 0x80000000) VAL [\old(x)=NaN, i0=2143289344, iptr={2:0}, iptr={2:0}, ix=2143289344, j0=128, one_modf=1.0, sf_u={4194306:0}, x=NaN] [L66] EXPR, FCALL sf_u.value VAL [\old(x)=NaN, i0=2143289344, iptr={2:0}, iptr={2:0}, ix=2143289344, j0=128, one_modf=1.0, sf_u={4194306:0}, sf_u.value=0.0, x=NaN] [L66] (x) = sf_u.value VAL [\old(x)=NaN, i0=2143289344, iptr={2:0}, iptr={2:0}, ix=2143289344, j0=128, one_modf=1.0, sf_u={4194306:0}, sf_u.value=0.0, x=0.0] [L66] FCALL (x) = sf_u.value VAL [(x) = sf_u.value=0, \old(x)=NaN, i0=2143289344, iptr={2:0}, iptr={2:0}, ix=2143289344, j0=128, one_modf=1.0, sf_u={4194306:0}, sf_u.value=0.0, x=0.0] [L67] COND FALSE !(0) VAL [\old(x)=NaN, i0=2143289344, iptr={2:0}, iptr={2:0}, ix=2143289344, j0=128, one_modf=1.0, x=0.0] [L68] RET return x; VAL [\old(x)=NaN, \result=0.0, i0=2143289344, iptr={2:0}, iptr={2:0}, ix=2143289344, j0=128, one_modf=1.0, x=0.0] [L82] EXPR modf_float(x, &iptr) VAL [iptr={2:0}, modf_float(x, &iptr)=0.0, one_modf=1.0, x=NaN] [L82] float res = modf_float(x, &iptr); [L85] EXPR, FCALL \read(iptr) VAL [\read(iptr)=NaN, iptr={2:0}, one_modf=1.0, res=0.0, x=NaN] [L85] CALL, EXPR isnan_float(iptr) VAL [\old(x)=NaN, one_modf=1.0] [L73] RET return x != x; VAL [\old(x)=NaN, \result=1, one_modf=1.0, x=NaN] [L85] EXPR isnan_float(iptr) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_float(iptr)=1, one_modf=1.0, res=0.0, x=NaN] [L85] isnan_float(iptr) && !isnan_float(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, one_modf=1.0, res=0.0, x=NaN] [L85] COND TRUE isnan_float(iptr) && !isnan_float(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, one_modf=1.0, res=0.0, x=NaN] [L85] CALL, EXPR isnan_float(res) VAL [\old(x)=0.0, one_modf=1.0] [L73] RET return x != x; VAL [\old(x)=0.0, \result=0, one_modf=1.0, x=0.0] [L85] EXPR isnan_float(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, isnan_float(res)=0, one_modf=1.0, res=0.0, x=NaN] [L85] isnan_float(iptr) && !isnan_float(res) VAL [\read(iptr)=NaN, iptr={2:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, isnan_float(res)=0, one_modf=1.0, res=0.0, x=NaN] [L85] COND TRUE isnan_float(iptr) && !isnan_float(res) [L86] __VERIFIER_error() VAL [iptr={2:0}, one_modf=1.0, res=0.0, x=NaN] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 111 locations, 1 error locations. UNSAFE Result, 4.2s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 259 SDtfs, 260 SDslu, 410 SDs, 0 SdLazy, 130 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 123 ConstructedInterpolants, 14 QuantifiedInterpolants, 20889 SizeOfPredicates, 8 NumberOfNonLiveVariables, 262 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...