/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0710_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0710_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c16c67ce5cca443cd83fc5281839df28ff6e9dd --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/double_req_bl_0710_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c16c67ce5cca443cd83fc5281839df28ff6e9dd --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false .................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 17:53:20,808 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:53:20,810 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:53:20,823 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:53:20,823 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:53:20,824 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:53:20,826 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:53:20,828 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:53:20,830 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:53:20,831 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:53:20,832 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:53:20,832 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:53:20,833 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:53:20,835 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:53:20,836 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:53:20,837 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:53:20,838 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:53:20,840 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:53:20,842 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:53:20,844 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:53:20,845 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:53:20,847 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:53:20,850 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:53:20,850 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:53:20,850 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:53:20,851 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:53:20,853 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:53:20,854 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:53:20,854 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:53:20,855 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:53:20,856 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:53:20,857 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:53:20,857 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:53:20,857 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:53:20,858 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:53:20,859 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:53:20,860 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 17:53:20,878 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:53:20,879 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:53:20,880 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:53:20,880 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:53:20,881 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:53:20,881 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:53:20,881 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:53:20,881 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:53:20,882 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:53:20,882 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 17:53:20,883 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:53:20,883 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:53:20,883 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:53:20,883 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:53:20,883 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:53:20,884 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:53:20,884 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:53:20,884 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:53:20,885 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:53:20,885 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:53:20,885 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:53:20,885 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:53:20,885 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:53:20,886 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:53:20,886 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:53:20,886 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:53:20,886 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 17:53:20,888 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:53:20,888 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 17:53:20,888 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 -> 0c16c67ce5cca443cd83fc5281839df28ff6e9dd 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 17:53:20,941 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:53:20,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:53:20,958 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:53:20,960 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:53:20,961 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:53:20,962 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0710_true-unreach-call.c [2018-09-21 17:53:21,304 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b69ea2e4/e365bc1d13a349d29c3c596666f6c312/FLAG0c2d9a140 [2018-09-21 17:53:21,467 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:53:21,468 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0710_true-unreach-call.c [2018-09-21 17:53:21,479 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b69ea2e4/e365bc1d13a349d29c3c596666f6c312/FLAG0c2d9a140 [2018-09-21 17:53:21,496 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b69ea2e4/e365bc1d13a349d29c3c596666f6c312 [2018-09-21 17:53:21,500 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:53:21,503 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:53:21,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:53:21,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:53:21,512 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:53:21,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:53:21" (1/1) ... [2018-09-21 17:53:21,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f022dd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:21, skipping insertion in model container [2018-09-21 17:53:21,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:53:21" (1/1) ... [2018-09-21 17:53:21,531 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:53:21,838 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:53:21,865 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:53:21,916 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:53:21,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:21 WrapperNode [2018-09-21 17:53:21,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:53:21,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:53:21,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:53:21,967 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:53:21,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:21" (1/1) ... [2018-09-21 17:53:21,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:21" (1/1) ... [2018-09-21 17:53:21,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:21" (1/1) ... [2018-09-21 17:53:21,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:21" (1/1) ... [2018-09-21 17:53:22,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:21" (1/1) ... [2018-09-21 17:53:22,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:21" (1/1) ... [2018-09-21 17:53:22,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:21" (1/1) ... [2018-09-21 17:53:22,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:53:22,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:53:22,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:53:22,031 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:53:22,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:21" (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 17:53:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:53:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:53:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 17:53:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-21 17:53:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:53:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:53:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:53:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 17:53:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-21 17:53:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:53:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 17:53:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 17:53:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:53:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 17:53:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 17:53:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:53:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:53:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:53:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 17:53:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 17:53:23,140 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:53:23,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:53:23 BoogieIcfgContainer [2018-09-21 17:53:23,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:53:23,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:53:23,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:53:23,149 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:53:23,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:53:21" (1/3) ... [2018-09-21 17:53:23,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17dbd089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:53:23, skipping insertion in model container [2018-09-21 17:53:23,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:21" (2/3) ... [2018-09-21 17:53:23,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17dbd089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:53:23, skipping insertion in model container [2018-09-21 17:53:23,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:53:23" (3/3) ... [2018-09-21 17:53:23,154 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0710_true-unreach-call.c [2018-09-21 17:53:23,166 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:53:23,181 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:53:23,243 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:53:23,243 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:53:23,244 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:53:23,244 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:53:23,244 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:53:23,244 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:53:23,245 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:53:23,245 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:53:23,245 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:53:23,269 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2018-09-21 17:53:23,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-21 17:53:23,288 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:53:23,289 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] [2018-09-21 17:53:23,292 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:53:23,298 INFO L82 PathProgramCache]: Analyzing trace with hash 438345323, now seen corresponding path program 1 times [2018-09-21 17:53:23,301 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 17:53:23,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 17:53:23,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:53:23,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:53:23,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:53:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:53:23,453 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 17:53:23,456 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:53:23,456 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:53:23,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:53:23,474 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:53:23,475 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:53:23,477 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2018-09-21 17:53:23,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:53:23,502 INFO L93 Difference]: Finished difference Result 90 states and 110 transitions. [2018-09-21 17:53:23,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:53:23,504 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-21 17:53:23,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:53:23,517 INFO L225 Difference]: With dead ends: 90 [2018-09-21 17:53:23,518 INFO L226 Difference]: Without dead ends: 85 [2018-09-21 17:53:23,520 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 17:53:23,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-21 17:53:23,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-09-21 17:53:23,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-09-21 17:53:23,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 104 transitions. [2018-09-21 17:53:23,563 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 104 transitions. Word has length 21 [2018-09-21 17:53:23,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:53:23,564 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 104 transitions. [2018-09-21 17:53:23,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:53:23,564 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 104 transitions. [2018-09-21 17:53:23,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-21 17:53:23,566 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:53:23,566 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] [2018-09-21 17:53:23,566 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:53:23,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1009031604, now seen corresponding path program 1 times [2018-09-21 17:53:23,567 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 17:53:23,567 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 17:53:23,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:53:23,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:53:23,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:53:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 17:53:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 17:53:23,702 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 17:53:23,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 05:53:23 BoogieIcfgContainer [2018-09-21 17:53:23,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 17:53:23,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 17:53:23,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 17:53:23,770 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 17:53:23,773 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:53:23" (3/4) ... [2018-09-21 17:53:23,779 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 17:53:23,780 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 17:53:23,781 INFO L168 Benchmark]: Toolchain (without parser) took 2279.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -137.5 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-09-21 17:53:23,783 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 17:53:23,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 460.81 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 17:53:23,785 INFO L168 Benchmark]: Boogie Preprocessor took 63.85 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:53:23,785 INFO L168 Benchmark]: RCFGBuilder took 1110.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-09-21 17:53:23,786 INFO L168 Benchmark]: TraceAbstraction took 626.53 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-09-21 17:53:23,787 INFO L168 Benchmark]: Witness Printer took 10.34 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 17:53:23,792 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 460.81 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.85 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1110.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 626.53 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Witness Printer took 10.34 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: 146]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of someBinaryArithmeticDOUBLEoperation at line 36, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L20] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [\old(one_sqrt)=16, \old(tiny_sqrt)=13, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L139] double x = __VERIFIER_nondet_double(); [L141] COND TRUE x < -0.0 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L142] CALL, EXPR __ieee754_sqrt(x) VAL [\old(x)=14, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L23] double z; [L24] __int32_t sign = 0x80000000; [L25] __uint32_t r, t1, s1, ix1, q1; [L26] __int32_t ix0, s0, q, m, t, i; VAL [\old(x)=14, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L29] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=14, ew_u={15:0}, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L30] FCALL ew_u.value = (x) VAL [\old(x)=14, ew_u={15:0}, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L31] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=14, ew_u={15:0}, ew_u.parts.msw=3, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L31] (ix0) = ew_u.parts.msw VAL [\old(x)=14, ew_u={15:0}, ew_u.parts.msw=3, ix0=3, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L31] FCALL (ix0) = ew_u.parts.msw VAL [(ix0) = ew_u.parts.msw=17, \old(x)=14, ew_u={15:0}, ew_u.parts.msw=3, ix0=3, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L32] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=14, ew_u={15:0}, ew_u.parts.lsw=12, ix0=3, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L32] (ix1) = ew_u.parts.lsw VAL [\old(x)=14, ew_u={15:0}, ew_u.parts.lsw=12, ix0=3, ix1=12, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L32] FCALL (ix1) = ew_u.parts.lsw VAL [(ix1) = ew_u.parts.lsw=11, \old(x)=14, ew_u={15:0}, ew_u.parts.lsw=12, ix0=3, ix1=12, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L33] COND FALSE !(0) VAL [\old(x)=14, ix0=3, ix1=12, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L35] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L36] RET return x * x + x; VAL [\old(x)=14, ix0=3, ix1=12, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L142] EXPR __ieee754_sqrt(x) VAL [__ieee754_sqrt(x)=9, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L142] double res = __ieee754_sqrt(x); [L145] CALL, EXPR isnan_double(res) VAL [\old(x)=9, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L18] RET return x != x; VAL [\old(x)=9, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=9] [L145] EXPR isnan_double(res) VAL [isnan_double(res)=0, one_sqrt=1, res=9, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] [L145] COND TRUE !isnan_double(res) [L146] __VERIFIER_error() VAL [one_sqrt=1, res=9, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=14] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 90 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 110 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 17:53:26,176 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:53:26,179 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:53:26,195 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:53:26,195 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:53:26,197 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:53:26,199 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:53:26,201 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:53:26,203 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:53:26,204 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:53:26,205 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:53:26,210 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:53:26,212 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:53:26,213 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:53:26,215 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:53:26,216 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:53:26,218 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:53:26,221 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:53:26,227 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:53:26,228 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:53:26,229 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:53:26,230 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:53:26,232 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:53:26,232 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:53:26,233 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:53:26,234 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:53:26,234 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:53:26,235 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:53:26,236 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:53:26,238 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:53:26,239 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:53:26,240 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:53:26,242 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:53:26,243 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:53:26,244 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:53:26,246 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:53:26,247 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 17:53:26,262 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:53:26,262 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:53:26,263 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:53:26,263 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:53:26,264 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:53:26,264 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:53:26,264 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:53:26,264 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:53:26,265 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:53:26,265 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:53:26,265 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:53:26,265 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:53:26,265 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:53:26,265 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:53:26,266 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 17:53:26,266 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 17:53:26,266 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:53:26,266 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:53:26,266 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:53:26,267 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:53:26,267 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:53:26,267 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:53:26,267 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:53:26,267 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:53:26,268 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:53:26,268 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:53:26,268 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:53:26,268 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 17:53:26,268 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:53:26,268 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 17:53:26,269 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 17:53:26,269 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 -> 0c16c67ce5cca443cd83fc5281839df28ff6e9dd 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 17:53:26,330 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:53:26,346 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:53:26,351 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:53:26,353 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:53:26,353 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:53:26,354 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0710_true-unreach-call.c [2018-09-21 17:53:26,721 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57f136581/20fb073557e64938b6f4185e262f6eb8/FLAG31ea397a6 [2018-09-21 17:53:26,859 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:53:26,860 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0710_true-unreach-call.c [2018-09-21 17:53:26,870 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57f136581/20fb073557e64938b6f4185e262f6eb8/FLAG31ea397a6 [2018-09-21 17:53:26,886 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57f136581/20fb073557e64938b6f4185e262f6eb8 [2018-09-21 17:53:26,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:53:26,896 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:53:26,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:53:26,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:53:26,904 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:53:26,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:53:26" (1/1) ... [2018-09-21 17:53:26,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d5fda7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:26, skipping insertion in model container [2018-09-21 17:53:26,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:53:26" (1/1) ... [2018-09-21 17:53:26,921 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:53:27,284 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:53:27,311 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:53:27,388 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:53:27,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:27 WrapperNode [2018-09-21 17:53:27,437 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:53:27,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:53:27,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:53:27,438 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:53:27,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:27" (1/1) ... [2018-09-21 17:53:27,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:27" (1/1) ... [2018-09-21 17:53:27,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:27" (1/1) ... [2018-09-21 17:53:27,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:27" (1/1) ... [2018-09-21 17:53:27,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:27" (1/1) ... [2018-09-21 17:53:27,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:27" (1/1) ... [2018-09-21 17:53:27,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:27" (1/1) ... [2018-09-21 17:53:27,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:53:27,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:53:27,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:53:27,549 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:53:27,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:27" (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 17:53:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:53:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:53:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 17:53:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-21 17:53:27,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:53:27,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:53:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:53:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 17:53:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-21 17:53:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:53:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 17:53:27,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 17:53:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:53:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 17:53:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 17:53:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:53:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:53:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:53:27,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 17:53:27,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 17:53:28,139 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:53:28,177 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:53:28,218 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:53:31,908 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:53:31,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:53:31 BoogieIcfgContainer [2018-09-21 17:53:31,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:53:31,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:53:31,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:53:31,917 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:53:31,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:53:26" (1/3) ... [2018-09-21 17:53:31,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c652b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:53:31, skipping insertion in model container [2018-09-21 17:53:31,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:53:27" (2/3) ... [2018-09-21 17:53:31,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c652b60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:53:31, skipping insertion in model container [2018-09-21 17:53:31,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:53:31" (3/3) ... [2018-09-21 17:53:31,923 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0710_true-unreach-call.c [2018-09-21 17:53:31,937 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:53:31,949 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:53:32,005 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:53:32,006 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:53:32,006 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:53:32,006 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:53:32,007 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:53:32,007 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:53:32,007 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:53:32,008 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:53:32,008 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:53:32,029 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2018-09-21 17:53:32,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-21 17:53:32,043 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:53:32,045 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] [2018-09-21 17:53:32,048 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:53:32,055 INFO L82 PathProgramCache]: Analyzing trace with hash -2064908287, now seen corresponding path program 1 times [2018-09-21 17:53:32,061 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:53:32,062 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 17:53:32,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 17:53:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:53:32,540 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:53:32,559 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 17:53:32,560 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:53:32,576 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:53:32,577 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:53:32,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:53:32,594 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:53:32,594 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:53:32,597 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2018-09-21 17:53:32,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:53:32,620 INFO L93 Difference]: Finished difference Result 89 states and 109 transitions. [2018-09-21 17:53:32,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:53:32,622 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-09-21 17:53:32,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:53:32,634 INFO L225 Difference]: With dead ends: 89 [2018-09-21 17:53:32,634 INFO L226 Difference]: Without dead ends: 84 [2018-09-21 17:53:32,636 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 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 17:53:32,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-09-21 17:53:32,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-09-21 17:53:32,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-09-21 17:53:32,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 103 transitions. [2018-09-21 17:53:32,685 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 103 transitions. Word has length 20 [2018-09-21 17:53:32,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:53:32,685 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 103 transitions. [2018-09-21 17:53:32,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:53:32,686 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 103 transitions. [2018-09-21 17:53:32,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-21 17:53:32,687 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:53:32,687 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] [2018-09-21 17:53:32,688 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:53:32,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1371212009, now seen corresponding path program 1 times [2018-09-21 17:53:32,689 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:53:32,689 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 17:53:32,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:53:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:53:33,147 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:53:33,290 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 14 treesize of output 11 [2018-09-21 17:53:33,299 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 11 treesize of output 10 [2018-09-21 17:53:33,300 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:53:33,323 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:53:33,357 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:53:33,357 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-21 17:53:33,487 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 20 treesize of output 16 [2018-09-21 17:53:33,517 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 16 treesize of output 4 [2018-09-21 17:53:33,518 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:53:33,543 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:53:33,582 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:53:33,583 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-21 17:53:36,883 WARN L819 $PredicateComparison]: unable to prove that (and (exists ((|v_q#valueAsBitvector_4| (_ BitVec 64))) (and (= |c___ieee754_sqrt_#in~x| (fp ((_ extract 63 63) |v_q#valueAsBitvector_4|) ((_ extract 62 52) |v_q#valueAsBitvector_4|) ((_ extract 51 0) |v_q#valueAsBitvector_4|))) (= (_ bv2146435072 32) (bvand ((_ extract 63 32) |v_q#valueAsBitvector_4|) (_ bv2146435072 32))))) (= |c___ieee754_sqrt_#res| (fp.add RNE (fp.mul RNE |c___ieee754_sqrt_#in~x| |c___ieee754_sqrt_#in~x|) |c___ieee754_sqrt_#in~x|))) is different from true [2018-09-21 17:53:47,941 WARN L178 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-21 17:54:03,266 WARN L178 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-21 17:54:07,834 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 17:54:07,834 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:54:07,852 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:54:07,852 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-21 17:54:07,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-21 17:54:07,855 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-21 17:54:07,855 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=82, Unknown=8, NotChecked=18, Total=132 [2018-09-21 17:54:07,855 INFO L87 Difference]: Start difference. First operand 84 states and 103 transitions. Second operand 12 states. [2018-09-21 17:54:56,612 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 17:56:05,715 WARN L178 SmtUtils]: Spent 5.24 s on a formula simplification that was a NOOP. DAG size: 26 [2018-09-21 17:56:32,780 WARN L178 SmtUtils]: Spent 2.33 s on a formula simplification that was a NOOP. DAG size: 22 [2018-09-21 17:56:59,120 WARN L178 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 22 [2018-09-21 17:58:07,167 WARN L178 SmtUtils]: Spent 2.51 s on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 17:58:32,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:58:32,996 INFO L93 Difference]: Finished difference Result 98 states and 119 transitions. [2018-09-21 17:58:32,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 17:58:32,997 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2018-09-21 17:58:32,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:58:33,002 INFO L225 Difference]: With dead ends: 98 [2018-09-21 17:58:33,002 INFO L226 Difference]: Without dead ends: 93 [2018-09-21 17:58:33,004 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 94.1s TimeCoverageRelationStatistics Valid=60, Invalid=233, Unknown=17, NotChecked=32, Total=342 [2018-09-21 17:58:33,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-09-21 17:58:33,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 84. [2018-09-21 17:58:33,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-09-21 17:58:33,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 102 transitions. [2018-09-21 17:58:33,019 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 102 transitions. Word has length 33 [2018-09-21 17:58:33,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:58:33,020 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 102 transitions. [2018-09-21 17:58:33,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-21 17:58:33,020 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 102 transitions. [2018-09-21 17:58:33,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-21 17:58:33,021 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:58:33,022 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] [2018-09-21 17:58:33,022 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:58:33,022 INFO L82 PathProgramCache]: Analyzing trace with hash 2129900499, now seen corresponding path program 1 times [2018-09-21 17:58:33,023 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:58:33,023 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 17:58:33,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:58:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:58:33,122 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:58:33,202 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:58:33,205 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:58:33,207 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-21 17:58:33,251 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:58:33,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-21 17:58:33,283 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:58:33,307 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:58:33,339 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:58:33,340 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:33 [2018-09-21 17:58:33,584 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 42 treesize of output 33 [2018-09-21 17:58:33,632 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:58:33,665 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2018-09-21 17:58:33,665 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:58:33,701 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:58:33,863 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-21 17:58:33,864 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:56, output treesize:37 [2018-09-21 17:58:35,967 WARN L178 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 32 [2018-09-21 17:58:35,994 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 26 treesize of output 20 [2018-09-21 17:58:36,010 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:58:36,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 11 [2018-09-21 17:58:36,018 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:58:36,059 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:58:36,080 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 17:58:36,081 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:44, output treesize:23 [2018-09-21 17:58:36,339 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 17:58:36,339 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:58:36,349 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:58:36,350 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 17:58:36,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 17:58:36,351 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 17:58:36,351 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-09-21 17:58:36,351 INFO L87 Difference]: Start difference. First operand 84 states and 102 transitions. Second operand 11 states. [2018-09-21 17:58:37,063 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-09-21 17:58:38,156 WARN L178 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2018-09-21 17:58:38,498 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-09-21 17:58:45,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:58:45,495 INFO L93 Difference]: Finished difference Result 95 states and 114 transitions. [2018-09-21 17:58:45,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 17:58:45,497 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 35 [2018-09-21 17:58:45,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:58:45,500 INFO L225 Difference]: With dead ends: 95 [2018-09-21 17:58:45,500 INFO L226 Difference]: Without dead ends: 93 [2018-09-21 17:58:45,501 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-21 17:58:45,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-09-21 17:58:45,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 84. [2018-09-21 17:58:45,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-09-21 17:58:45,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 101 transitions. [2018-09-21 17:58:45,513 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 101 transitions. Word has length 35 [2018-09-21 17:58:45,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:58:45,513 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 101 transitions. [2018-09-21 17:58:45,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 17:58:45,513 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2018-09-21 17:58:45,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-21 17:58:45,515 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:58:45,516 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] [2018-09-21 17:58:45,516 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:58:45,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1514823019, now seen corresponding path program 1 times [2018-09-21 17:58:45,517 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:58:45,517 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 17:58:45,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:58:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:58:46,804 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:58:47,212 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-09-21 17:58:47,414 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2018-09-21 17:58:47,415 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:140) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:788) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:732) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:338) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:430) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 39 more [2018-09-21 17:58:47,425 INFO L168 Benchmark]: Toolchain (without parser) took 320531.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 953.2 MB in the beginning and 810.5 MB in the end (delta: 142.7 MB). Peak memory consumption was 274.8 MB. Max. memory is 11.5 GB. [2018-09-21 17:58:47,427 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 17:58:47,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.66 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 17:58:47,429 INFO L168 Benchmark]: Boogie Preprocessor took 109.97 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:58:47,429 INFO L168 Benchmark]: RCFGBuilder took 4361.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-09-21 17:58:47,431 INFO L168 Benchmark]: TraceAbstraction took 315512.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 810.5 MB in the end (delta: 279.9 MB). Peak memory consumption was 279.9 MB. Max. memory is 11.5 GB. [2018-09-21 17:58:47,436 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 540.66 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 109.97 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 4361.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 315512.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 810.5 MB in the end (delta: 279.9 MB). Peak memory consumption was 279.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...