/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0730b_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_0730b_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 788527977e7ebd7aa0a832758f41b65d3cbd270a --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_0730b_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 788527977e7ebd7aa0a832758f41b65d3cbd270a --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 17:54:14,901 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:54:14,903 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:54:14,920 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:54:14,920 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:54:14,921 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:54:14,922 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:54:14,925 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:54:14,926 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:54:14,927 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:54:14,928 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:54:14,928 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:54:14,929 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:54:14,930 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:54:14,931 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:54:14,932 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:54:14,933 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:54:14,935 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:54:14,937 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:54:14,938 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:54:14,941 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:54:14,945 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:54:14,955 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:54:14,956 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:54:14,956 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:54:14,957 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:54:14,958 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:54:14,959 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:54:14,960 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:54:14,961 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:54:14,961 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:54:14,961 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:54:14,962 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:54:14,962 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:54:14,963 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:54:14,963 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:54:14,964 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 17:54:14,980 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:54:14,980 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:54:14,981 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:54:14,981 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:54:14,984 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:54:14,984 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:54:14,984 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:54:14,985 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:54:14,985 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:54:14,985 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 17:54:14,985 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:54:14,985 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:54:14,985 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:54:14,986 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:54:14,987 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:54:14,987 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:54:14,987 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:54:14,987 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:54:14,987 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:54:14,988 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:54:14,988 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:54:14,988 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:54:14,988 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:54:14,988 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:54:14,990 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:54:14,991 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:54:14,991 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 17:54:14,991 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:54:14,991 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 17:54:14,991 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 -> 788527977e7ebd7aa0a832758f41b65d3cbd270a 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 17:54:15,080 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:54:15,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:54:15,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:54:15,104 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:54:15,105 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:54:15,106 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0730b_true-unreach-call.c [2018-09-21 17:54:15,467 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0155d6a4b/50e9b67576bb4ea9882527f2a221cb3d/FLAGf7014668f [2018-09-21 17:54:15,613 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:54:15,614 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0730b_true-unreach-call.c [2018-09-21 17:54:15,622 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0155d6a4b/50e9b67576bb4ea9882527f2a221cb3d/FLAGf7014668f [2018-09-21 17:54:15,640 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0155d6a4b/50e9b67576bb4ea9882527f2a221cb3d [2018-09-21 17:54:15,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:54:15,650 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:54:15,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:54:15,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:54:15,658 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:54:15,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:54:15" (1/1) ... [2018-09-21 17:54:15,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb51be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:15, skipping insertion in model container [2018-09-21 17:54:15,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:54:15" (1/1) ... [2018-09-21 17:54:15,675 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:54:16,013 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:54:16,030 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:54:16,069 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:54:16,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:16 WrapperNode [2018-09-21 17:54:16,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:54:16,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:54:16,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:54:16,106 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:54:16,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:16" (1/1) ... [2018-09-21 17:54:16,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:16" (1/1) ... [2018-09-21 17:54:16,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:16" (1/1) ... [2018-09-21 17:54:16,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:16" (1/1) ... [2018-09-21 17:54:16,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:16" (1/1) ... [2018-09-21 17:54:16,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:16" (1/1) ... [2018-09-21 17:54:16,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:16" (1/1) ... [2018-09-21 17:54:16,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:54:16,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:54:16,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:54:16,172 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:54:16,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:16" (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 17:54:16,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:54:16,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:54:16,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-21 17:54:16,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-21 17:54:16,321 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:54:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:54:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:54:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-21 17:54:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:54:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 17:54:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 17:54:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:54:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 17:54:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 17:54:16,324 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-21 17:54:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:54:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:54:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:54:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 17:54:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 17:54:17,347 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:54:17,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:54:17 BoogieIcfgContainer [2018-09-21 17:54:17,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:54:17,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:54:17,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:54:17,353 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:54:17,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:54:15" (1/3) ... [2018-09-21 17:54:17,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd69162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:54:17, skipping insertion in model container [2018-09-21 17:54:17,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:16" (2/3) ... [2018-09-21 17:54:17,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd69162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:54:17, skipping insertion in model container [2018-09-21 17:54:17,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:54:17" (3/3) ... [2018-09-21 17:54:17,359 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730b_true-unreach-call.c [2018-09-21 17:54:17,367 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:54:17,375 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:54:17,414 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:54:17,415 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:54:17,415 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:54:17,415 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:54:17,415 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:54:17,415 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:54:17,416 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:54:17,416 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:54:17,416 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:54:17,433 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2018-09-21 17:54:17,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-21 17:54:17,445 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:17,446 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:54:17,449 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:17,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1374597462, now seen corresponding path program 1 times [2018-09-21 17:54:17,457 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 17:54:17,458 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 17:54:17,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:54:17,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:54:17,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:54:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:54:17,595 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 17:54:17,597 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:54:17,598 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:54:17,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:54:17,614 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:54:17,615 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:54:17,617 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 2 states. [2018-09-21 17:54:17,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:17,641 INFO L93 Difference]: Finished difference Result 100 states and 120 transitions. [2018-09-21 17:54:17,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:54:17,642 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-09-21 17:54:17,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:17,656 INFO L225 Difference]: With dead ends: 100 [2018-09-21 17:54:17,656 INFO L226 Difference]: Without dead ends: 96 [2018-09-21 17:54:17,658 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 17:54:17,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-09-21 17:54:17,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-09-21 17:54:17,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-09-21 17:54:17,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 116 transitions. [2018-09-21 17:54:17,705 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 116 transitions. Word has length 16 [2018-09-21 17:54:17,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:17,705 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 116 transitions. [2018-09-21 17:54:17,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:54:17,706 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 116 transitions. [2018-09-21 17:54:17,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-21 17:54:17,707 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:17,707 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] [2018-09-21 17:54:17,708 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:17,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1447842776, now seen corresponding path program 1 times [2018-09-21 17:54:17,708 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 17:54:17,708 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 17:54:17,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:54:17,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:54:17,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 17:54:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 17:54:17,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 17:54:17,839 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 17:54:17,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 05:54:17 BoogieIcfgContainer [2018-09-21 17:54:17,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 17:54:17,878 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 17:54:17,878 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 17:54:17,878 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 17:54:17,879 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:54:17" (3/4) ... [2018-09-21 17:54:17,884 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 17:54:17,884 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 17:54:17,885 INFO L168 Benchmark]: Toolchain (without parser) took 2237.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -125.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:17,887 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 17:54:17,888 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.88 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:17,889 INFO L168 Benchmark]: Boogie Preprocessor took 65.62 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 17:54:17,889 INFO L168 Benchmark]: RCFGBuilder took 1175.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:17,890 INFO L168 Benchmark]: TraceAbstraction took 527.71 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-21 17:54:17,891 INFO L168 Benchmark]: Witness Printer took 6.21 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 17:54:17,895 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 454.88 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.62 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1175.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 527.71 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 6.21 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: 154]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 149, overapproximation of someBinaryArithmeticDOUBLEoperation at line 33, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryDOUBLEComparisonOperation at line 153. Possible FailurePath: [L17] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [\old(one_sqrt)=6442450951, \old(tiny_sqrt)=6442450947, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L149] double x = -0.0; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L150] CALL, EXPR __ieee754_sqrt(x) VAL [\old(x)=6442450952, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] double z; [L21] __int32_t sign = 0x80000000; [L22] __uint32_t r, t1, s1, ix1, q1; [L23] __int32_t ix0, s0, q, m, t, i; VAL [\old(x)=6442450952, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L26] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=6442450952, ew_u={6442450944:0}, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L27] FCALL ew_u.value = (x) VAL [\old(x)=6442450952, ew_u={6442450944:0}, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L28] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=6442450952, ew_u={6442450944:0}, ew_u.parts.msw=6442450943, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L28] (ix0) = ew_u.parts.msw VAL [\old(x)=6442450952, ew_u={6442450944:0}, ew_u.parts.msw=6442450943, ix0=2147483647, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L28] FCALL (ix0) = ew_u.parts.msw VAL [(ix0) = ew_u.parts.msw=6442450948, \old(x)=6442450952, ew_u={6442450944:0}, ew_u.parts.msw=6442450943, ix0=2147483647, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L29] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=6442450952, ew_u={6442450944:0}, ew_u.parts.lsw=6442450949, ix0=2147483647, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L29] (ix1) = ew_u.parts.lsw VAL [\old(x)=6442450952, ew_u={6442450944:0}, ew_u.parts.lsw=6442450949, ix0=2147483647, ix1=6442450949, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L29] FCALL (ix1) = ew_u.parts.lsw VAL [(ix1) = ew_u.parts.lsw=6442450946, \old(x)=6442450952, ew_u={6442450944:0}, ew_u.parts.lsw=6442450949, ix0=2147483647, ix1=6442450949, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L30] COND FALSE !(0) VAL [\old(x)=6442450952, ix0=2147483647, ix1=6442450949, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L32] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L33] RET return x * x + x; VAL [\old(x)=6442450952, ix0=2147483647, ix1=6442450949, one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L150] EXPR __ieee754_sqrt(x) VAL [__ieee754_sqrt(x)=6442450950, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L150] double res = __ieee754_sqrt(x); [L153] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [one_sqrt=1, res=6442450950, res == -0.0 && __signbit_double(res) == 1=0, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L153] COND FALSE, EXPR !(res == -0.0 && __signbit_double(res) == 1) VAL [one_sqrt=1, res=6442450950, res == -0.0 && __signbit_double(res) == 1=0, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L153] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L154] __VERIFIER_error() VAL [one_sqrt=1, res=6442450950, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 100 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 120 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=100occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 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 17:54:20,241 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 17:54:20,242 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 17:54:20,255 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 17:54:20,255 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 17:54:20,256 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 17:54:20,258 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 17:54:20,260 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 17:54:20,262 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 17:54:20,263 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 17:54:20,264 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 17:54:20,264 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 17:54:20,265 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 17:54:20,266 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 17:54:20,267 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 17:54:20,268 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 17:54:20,269 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 17:54:20,271 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 17:54:20,273 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 17:54:20,274 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 17:54:20,276 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 17:54:20,277 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 17:54:20,280 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 17:54:20,283 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 17:54:20,284 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 17:54:20,285 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 17:54:20,286 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 17:54:20,289 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 17:54:20,290 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 17:54:20,292 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 17:54:20,292 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 17:54:20,293 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 17:54:20,293 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 17:54:20,293 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 17:54:20,294 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 17:54:20,301 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 17:54:20,303 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 17:54:20,325 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 17:54:20,326 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 17:54:20,327 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 17:54:20,327 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 17:54:20,327 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 17:54:20,328 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 17:54:20,328 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 17:54:20,328 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 17:54:20,329 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 17:54:20,329 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 17:54:20,329 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 17:54:20,329 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 17:54:20,329 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 17:54:20,329 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 17:54:20,330 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 17:54:20,330 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 17:54:20,330 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 17:54:20,330 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 17:54:20,330 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 17:54:20,332 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 17:54:20,332 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 17:54:20,332 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 17:54:20,332 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 17:54:20,333 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 17:54:20,333 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 17:54:20,333 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 17:54:20,333 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 17:54:20,334 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 17:54:20,334 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 17:54:20,335 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 17:54:20,335 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 17:54:20,335 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 -> 788527977e7ebd7aa0a832758f41b65d3cbd270a 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 17:54:20,394 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 17:54:20,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 17:54:20,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 17:54:20,415 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 17:54:20,415 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 17:54:20,416 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0730b_true-unreach-call.c [2018-09-21 17:54:20,763 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd931c73/c7f889da4a2e4ee6a7870f176d79df67/FLAGdd763d15d [2018-09-21 17:54:20,951 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 17:54:20,952 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0730b_true-unreach-call.c [2018-09-21 17:54:20,962 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd931c73/c7f889da4a2e4ee6a7870f176d79df67/FLAGdd763d15d [2018-09-21 17:54:20,981 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cd931c73/c7f889da4a2e4ee6a7870f176d79df67 [2018-09-21 17:54:20,987 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 17:54:20,990 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 17:54:20,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 17:54:20,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 17:54:21,000 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 17:54:21,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:54:20" (1/1) ... [2018-09-21 17:54:21,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb51be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:21, skipping insertion in model container [2018-09-21 17:54:21,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 05:54:20" (1/1) ... [2018-09-21 17:54:21,021 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 17:54:21,275 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:54:21,295 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 17:54:21,336 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 17:54:21,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:21 WrapperNode [2018-09-21 17:54:21,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 17:54:21,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 17:54:21,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 17:54:21,408 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 17:54:21,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:21" (1/1) ... [2018-09-21 17:54:21,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:21" (1/1) ... [2018-09-21 17:54:21,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:21" (1/1) ... [2018-09-21 17:54:21,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:21" (1/1) ... [2018-09-21 17:54:21,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:21" (1/1) ... [2018-09-21 17:54:21,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:21" (1/1) ... [2018-09-21 17:54:21,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:21" (1/1) ... [2018-09-21 17:54:21,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 17:54:21,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 17:54:21,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 17:54:21,516 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 17:54:21,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:21" (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 17:54:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 17:54:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 17:54:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-21 17:54:21,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-21 17:54:21,672 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 17:54:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 17:54:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 17:54:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-21 17:54:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 17:54:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 17:54:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 17:54:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 17:54:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 17:54:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 17:54:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-21 17:54:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 17:54:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 17:54:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 17:54:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 17:54:21,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 17:54:21,861 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:54:21,889 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:54:22,273 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:54:22,291 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:54:22,330 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 17:54:27,336 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 17:54:27,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:54:27 BoogieIcfgContainer [2018-09-21 17:54:27,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 17:54:27,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 17:54:27,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 17:54:27,342 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 17:54:27,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 05:54:20" (1/3) ... [2018-09-21 17:54:27,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a9896b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:54:27, skipping insertion in model container [2018-09-21 17:54:27,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 05:54:21" (2/3) ... [2018-09-21 17:54:27,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a9896b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 05:54:27, skipping insertion in model container [2018-09-21 17:54:27,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:54:27" (3/3) ... [2018-09-21 17:54:27,347 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730b_true-unreach-call.c [2018-09-21 17:54:27,358 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 17:54:27,369 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 17:54:27,419 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 17:54:27,419 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 17:54:27,420 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 17:54:27,420 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 17:54:27,421 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 17:54:27,421 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 17:54:27,421 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 17:54:27,421 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 17:54:27,421 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 17:54:27,442 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2018-09-21 17:54:27,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-21 17:54:27,455 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:27,457 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:54:27,460 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:27,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1374597462, now seen corresponding path program 1 times [2018-09-21 17:54:27,472 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:54:27,473 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 17:54:27,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:54:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:54:27,933 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:54:27,951 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 17:54:27,951 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:54:27,968 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:54:27,969 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 17:54:27,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 17:54:27,985 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 17:54:27,986 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 17:54:27,988 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 2 states. [2018-09-21 17:54:28,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:28,012 INFO L93 Difference]: Finished difference Result 100 states and 120 transitions. [2018-09-21 17:54:28,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 17:54:28,015 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-09-21 17:54:28,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:28,033 INFO L225 Difference]: With dead ends: 100 [2018-09-21 17:54:28,033 INFO L226 Difference]: Without dead ends: 96 [2018-09-21 17:54:28,035 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 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 17:54:28,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-09-21 17:54:28,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-09-21 17:54:28,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-09-21 17:54:28,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 116 transitions. [2018-09-21 17:54:28,085 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 116 transitions. Word has length 16 [2018-09-21 17:54:28,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:28,086 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 116 transitions. [2018-09-21 17:54:28,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 17:54:28,086 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 116 transitions. [2018-09-21 17:54:28,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-21 17:54:28,087 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:28,088 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] [2018-09-21 17:54:28,088 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:28,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1447842776, now seen corresponding path program 1 times [2018-09-21 17:54:28,090 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:54:28,090 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 17:54:28,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:54:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:54:28,539 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:54:28,648 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 17:54:28,664 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 17:54:28,665 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:28,681 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:28,699 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 17:54:28,699 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:54:28,751 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 17:54:28,765 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 17:54:28,766 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:28,793 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:28,864 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 17:54:28,864 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:54:29,282 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 17:54:29,283 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:54:29,300 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:54:29,300 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 17:54:29,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 17:54:29,303 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 17:54:29,303 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 17:54:29,303 INFO L87 Difference]: Start difference. First operand 96 states and 116 transitions. Second operand 8 states. [2018-09-21 17:54:38,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:38,706 INFO L93 Difference]: Finished difference Result 107 states and 128 transitions. [2018-09-21 17:54:38,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-21 17:54:38,715 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2018-09-21 17:54:38,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:38,722 INFO L225 Difference]: With dead ends: 107 [2018-09-21 17:54:38,724 INFO L226 Difference]: Without dead ends: 105 [2018-09-21 17:54:38,725 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-09-21 17:54:38,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-09-21 17:54:38,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 96. [2018-09-21 17:54:38,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-09-21 17:54:38,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 115 transitions. [2018-09-21 17:54:38,747 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 115 transitions. Word has length 29 [2018-09-21 17:54:38,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:38,747 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 115 transitions. [2018-09-21 17:54:38,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 17:54:38,747 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 115 transitions. [2018-09-21 17:54:38,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 17:54:38,750 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:38,750 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:54:38,750 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:38,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1588044780, now seen corresponding path program 1 times [2018-09-21 17:54:38,751 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:54:38,752 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 17:54:38,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:54:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:54:38,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:54:38,930 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 17:54:38,931 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:54:38,952 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:54:38,952 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-21 17:54:38,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-21 17:54:38,953 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-21 17:54:38,954 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-21 17:54:38,954 INFO L87 Difference]: Start difference. First operand 96 states and 115 transitions. Second operand 7 states. [2018-09-21 17:54:42,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:42,978 INFO L93 Difference]: Finished difference Result 100 states and 119 transitions. [2018-09-21 17:54:42,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 17:54:42,979 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-09-21 17:54:42,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:42,981 INFO L225 Difference]: With dead ends: 100 [2018-09-21 17:54:42,981 INFO L226 Difference]: Without dead ends: 100 [2018-09-21 17:54:42,982 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-21 17:54:42,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-09-21 17:54:42,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-09-21 17:54:42,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-09-21 17:54:42,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 119 transitions. [2018-09-21 17:54:42,992 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 119 transitions. Word has length 31 [2018-09-21 17:54:42,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:42,993 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 119 transitions. [2018-09-21 17:54:42,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-21 17:54:42,994 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 119 transitions. [2018-09-21 17:54:42,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-21 17:54:42,995 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:42,995 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] [2018-09-21 17:54:42,996 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:42,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1854185662, now seen corresponding path program 1 times [2018-09-21 17:54:42,997 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:54:42,997 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) [2018-09-21 17:54:43,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 17:54:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:54:44,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:54:44,138 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:54:44,151 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 17:54:44,153 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 17:54:44,171 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:54:44,191 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 17:54:44,192 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:44,222 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:44,259 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 17:54:44,259 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:33 [2018-09-21 17:54:44,498 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 17:54:44,541 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:54:44,569 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 17:54:44,570 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:44,605 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:44,654 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 17:54:44,655 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:56, output treesize:37 [2018-09-21 17:54:46,764 WARN L178 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 32 [2018-09-21 17:54:46,786 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 17:54:46,796 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 17:54:46,801 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 17:54:46,801 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:46,813 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:46,838 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 17:54:46,839 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:44, output treesize:23 [2018-09-21 17:54:47,134 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 17:54:47,134 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:54:47,161 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:54:47,161 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-21 17:54:47,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-21 17:54:47,162 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-21 17:54:47,162 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-09-21 17:54:47,162 INFO L87 Difference]: Start difference. First operand 100 states and 119 transitions. Second operand 11 states. [2018-09-21 17:54:48,286 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2018-09-21 17:54:59,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:54:59,376 INFO L93 Difference]: Finished difference Result 107 states and 125 transitions. [2018-09-21 17:54:59,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-21 17:54:59,378 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2018-09-21 17:54:59,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:54:59,379 INFO L225 Difference]: With dead ends: 107 [2018-09-21 17:54:59,379 INFO L226 Difference]: Without dead ends: 48 [2018-09-21 17:54:59,380 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2018-09-21 17:54:59,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-09-21 17:54:59,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-09-21 17:54:59,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-09-21 17:54:59,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 47 transitions. [2018-09-21 17:54:59,385 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 47 transitions. Word has length 32 [2018-09-21 17:54:59,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:54:59,386 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 47 transitions. [2018-09-21 17:54:59,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-21 17:54:59,386 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 47 transitions. [2018-09-21 17:54:59,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-21 17:54:59,389 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 17:54:59,389 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 17:54:59,390 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 17:54:59,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1175923215, now seen corresponding path program 1 times [2018-09-21 17:54:59,390 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 17:54:59,390 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 17:54:59,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 17:54:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 17:54:59,493 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 17:54:59,675 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 17:54:59,682 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 17:54:59,683 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:59,691 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:59,711 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 17:54:59,712 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 17:54:59,815 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 17:54:59,823 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 17:54:59,824 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 17:54:59,830 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 17:54:59,841 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 17:54:59,842 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 17:55:00,283 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 17:55:00,284 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 17:55:00,309 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 17:55:00,309 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-21 17:55:00,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-21 17:55:00,310 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-21 17:55:00,310 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-09-21 17:55:00,310 INFO L87 Difference]: Start difference. First operand 48 states and 47 transitions. Second operand 14 states. [2018-09-21 17:55:02,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 17:55:02,062 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2018-09-21 17:55:02,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 17:55:02,063 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 47 [2018-09-21 17:55:02,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 17:55:02,064 INFO L225 Difference]: With dead ends: 46 [2018-09-21 17:55:02,064 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 17:55:02,064 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2018-09-21 17:55:02,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 17:55:02,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 17:55:02,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 17:55:02,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 17:55:02,065 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2018-09-21 17:55:02,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 17:55:02,067 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 17:55:02,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-21 17:55:02,067 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 17:55:02,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 17:55:02,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 05:55:02 BoogieIcfgContainer [2018-09-21 17:55:02,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 17:55:02,073 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 17:55:02,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 17:55:02,073 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 17:55:02,074 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 05:54:27" (3/4) ... [2018-09-21 17:55:02,078 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 17:55:02,088 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrt [2018-09-21 17:55:02,088 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 17:55:02,089 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-09-21 17:55:02,089 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 17:55:02,096 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2018-09-21 17:55:02,097 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-09-21 17:55:02,097 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-21 17:55:02,180 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 17:55:02,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 17:55:02,184 INFO L168 Benchmark]: Toolchain (without parser) took 41196.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.7 MB). Free memory was 951.8 MB in the beginning and 1.2 GB in the end (delta: -205.7 MB). Peak memory consumption was 2.9 MB. Max. memory is 11.5 GB. [2018-09-21 17:55:02,188 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 17:55:02,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.11 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 17:55:02,188 INFO L168 Benchmark]: Boogie Preprocessor took 108.23 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 17:55:02,189 INFO L168 Benchmark]: RCFGBuilder took 5820.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2018-09-21 17:55:02,189 INFO L168 Benchmark]: TraceAbstraction took 34734.92 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -56.7 MB). Peak memory consumption was 467.0 kB. Max. memory is 11.5 GB. [2018-09-21 17:55:02,190 INFO L168 Benchmark]: Witness Printer took 109.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-09-21 17:55:02,194 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 415.11 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 108.23 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 5820.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 34734.92 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -56.7 MB). Peak memory consumption was 467.0 kB. Max. memory is 11.5 GB. * Witness Printer took 109.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 100 locations, 1 error locations. SAFE Result, 34.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 27.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 438 SDtfs, 408 SDslu, 1620 SDs, 0 SdLazy, 577 SolverSat, 42 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 22.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 150 ConstructedInterpolants, 41 QuantifiedInterpolants, 40185 SizeOfPredicates, 30 NumberOfNonLiveVariables, 364 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...