/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092b_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_1092b_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 0d806ca1b262345211037ccd3e4a22cabffa047b --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_1092b_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 0d806ca1b262345211037ccd3e4a22cabffa047b --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:11:09,859 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:11:09,862 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:11:09,880 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:11:09,880 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:11:09,881 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:11:09,883 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:11:09,885 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:11:09,886 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:11:09,888 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:11:09,889 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:11:09,889 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:11:09,890 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:11:09,891 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:11:09,893 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:11:09,893 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:11:09,895 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:11:09,897 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:11:09,899 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:11:09,901 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:11:09,902 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:11:09,904 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:11:09,907 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:11:09,907 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:11:09,907 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:11:09,908 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:11:09,910 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:11:09,911 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:11:09,912 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:11:09,913 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:11:09,914 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:11:09,914 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:11:09,915 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:11:09,915 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:11:09,917 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:11:09,917 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:11:09,918 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:11:09,934 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:11:09,934 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:11:09,935 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:11:09,935 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:11:09,936 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:11:09,937 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:11:09,937 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:11:09,937 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:11:09,937 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:11:09,937 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:11:09,938 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:11:09,938 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:11:09,938 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:11:09,938 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:11:09,938 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:11:09,940 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:11:09,940 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:11:09,940 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:11:09,940 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:11:09,940 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:11:09,940 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:11:09,941 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:11:09,941 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:11:09,941 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:11:09,941 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:11:09,942 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:11:09,943 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:11:09,943 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:11:09,943 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:11:09,943 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 -> 0d806ca1b262345211037ccd3e4a22cabffa047b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:11:10,005 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:11:10,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:11:10,025 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:11:10,027 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:11:10,028 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:11:10,029 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092b_true-unreach-call.c [2018-09-21 18:11:10,403 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7d2f5b85/61012f2826aa459b805be3f9147acc37/FLAG24165522d [2018-09-21 18:11:10,586 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:11:10,587 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092b_true-unreach-call.c [2018-09-21 18:11:10,593 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7d2f5b85/61012f2826aa459b805be3f9147acc37/FLAG24165522d [2018-09-21 18:11:10,608 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7d2f5b85/61012f2826aa459b805be3f9147acc37 [2018-09-21 18:11:10,612 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:11:10,615 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:11:10,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:10,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:11:10,623 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:11:10,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:10" (1/1) ... [2018-09-21 18:11:10,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e90c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:10, skipping insertion in model container [2018-09-21 18:11:10,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:10" (1/1) ... [2018-09-21 18:11:10,641 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:11:10,850 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:10,869 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:11:10,890 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:10,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:10 WrapperNode [2018-09-21 18:11:10,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:10,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:11:10,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:11:10,924 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:11:10,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:10" (1/1) ... [2018-09-21 18:11:10,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:10" (1/1) ... [2018-09-21 18:11:10,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:10" (1/1) ... [2018-09-21 18:11:10,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:10" (1/1) ... [2018-09-21 18:11:10,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:10" (1/1) ... [2018-09-21 18:11:10,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:10" (1/1) ... [2018-09-21 18:11:10,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:10" (1/1) ... [2018-09-21 18:11:10,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:11:10,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:11:10,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:11:10,979 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:11:10,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:11:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:11:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:11:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:11:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-09-21 18:11:11,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:11:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:11:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:11:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-09-21 18:11:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:11:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:11:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:11:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:11:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:11:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:11:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:11:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:11:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:11:11,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:11:11,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:11:11,982 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:11:11,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:11 BoogieIcfgContainer [2018-09-21 18:11:11,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:11:11,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:11:11,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:11:11,988 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:11:11,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:11:10" (1/3) ... [2018-09-21 18:11:11,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb988b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:11, skipping insertion in model container [2018-09-21 18:11:11,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:10" (2/3) ... [2018-09-21 18:11:11,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb988b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:11, skipping insertion in model container [2018-09-21 18:11:11,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:11" (3/3) ... [2018-09-21 18:11:11,992 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b_true-unreach-call.c [2018-09-21 18:11:12,002 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:11:12,011 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:11:12,055 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:11:12,056 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:11:12,056 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:11:12,056 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:11:12,056 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:11:12,056 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:11:12,057 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:11:12,057 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:11:12,057 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:11:12,075 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-09-21 18:11:12,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-21 18:11:12,087 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:12,089 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:12,091 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:12,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1001944266, now seen corresponding path program 1 times [2018-09-21 18:11:12,099 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:11:12,100 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:11:12,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:12,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:12,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:12,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:12,237 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:12,238 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:11:12,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:11:12,261 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:11:12,265 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:11:12,270 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-09-21 18:11:12,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:12,299 INFO L93 Difference]: Finished difference Result 64 states and 78 transitions. [2018-09-21 18:11:12,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:11:12,300 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-21 18:11:12,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:12,312 INFO L225 Difference]: With dead ends: 64 [2018-09-21 18:11:12,312 INFO L226 Difference]: Without dead ends: 60 [2018-09-21 18:11:12,314 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:11:12,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-09-21 18:11:12,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-09-21 18:11:12,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-21 18:11:12,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2018-09-21 18:11:12,359 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 18 [2018-09-21 18:11:12,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:12,359 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2018-09-21 18:11:12,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:11:12,360 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2018-09-21 18:11:12,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:11:12,361 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:12,361 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:12,362 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:12,362 INFO L82 PathProgramCache]: Analyzing trace with hash -262001498, now seen corresponding path program 1 times [2018-09-21 18:11:12,362 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:11:12,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:11:12,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:12,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:12,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:11:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:11:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:11:12,473 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:11:12,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:11:12 BoogieIcfgContainer [2018-09-21 18:11:12,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:11:12,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:11:12,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:11:12,517 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:11:12,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:11" (3/4) ... [2018-09-21 18:11:12,522 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:11:12,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:11:12,523 INFO L168 Benchmark]: Toolchain (without parser) took 1910.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -98.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:12,525 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:12,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:12,527 INFO L168 Benchmark]: Boogie Preprocessor took 54.09 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:12,527 INFO L168 Benchmark]: RCFGBuilder took 1004.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -142.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:12,528 INFO L168 Benchmark]: TraceAbstraction took 531.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:12,529 INFO L168 Benchmark]: Witness Printer took 5.58 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:12,534 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 306.55 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.09 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1004.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -142.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 531.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.58 ms. Allocated memory is still 1.1 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: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 95, overapproximation of shiftRight at line 57, overapproximation of bitwiseAnd at line 58. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=11, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double x = 0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L92] CALL, EXPR ceil_double(x) VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L23] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=0, ew_u={13:0}, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L24] FCALL ew_u.value = (x) VAL [\old(x)=0, ew_u={13:0}, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L25] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=0, ew_u={13:0}, ew_u.parts.msw=5, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L25] (i0) = ew_u.parts.msw VAL [\old(x)=0, ew_u={13:0}, ew_u.parts.msw=5, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=5, x=0] [L25] FCALL (i0) = ew_u.parts.msw VAL [(i0) = ew_u.parts.msw=12, \old(x)=0, ew_u={13:0}, ew_u.parts.msw=5, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=5, x=0] [L26] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=0, ew_u={13:0}, ew_u.parts.lsw=2, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=5, x=0] [L26] (i1) = ew_u.parts.lsw VAL [\old(x)=0, ew_u={13:0}, ew_u.parts.lsw=2, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=5, i1=2, x=0] [L26] FCALL (i1) = ew_u.parts.lsw VAL [(i1) = ew_u.parts.lsw=10, \old(x)=0, ew_u={13:0}, ew_u.parts.lsw=2, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=5, i1=2, x=0] [L27] COND FALSE !(0) VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=5, i1=2, x=0] [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=5, i1=2, x=0] [L29] COND FALSE !(j0 < 20) VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=5, i1=2, j0=20, x=0] [L51] COND FALSE !(j0 > 51) [L57] i = ((__uint32_t)(0xffffffff)) >> (j0 - 20) VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=5, i1=2, j0=20, x=0] [L58] COND TRUE (i1 & i) == 0 [L59] RET return x; VAL [\old(x)=0, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=5, i1=2, j0=20, x=0] [L92] EXPR ceil_double(x) VAL [ceil_double(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L92] double res = ceil_double(x); [L95] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, x=0] [L96] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 67 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 78 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=64occurred 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, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:11:14,843 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:11:14,845 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:11:14,857 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:11:14,857 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:11:14,858 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:11:14,860 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:11:14,862 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:11:14,864 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:11:14,865 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:11:14,866 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:11:14,866 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:11:14,867 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:11:14,868 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:11:14,869 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:11:14,870 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:11:14,871 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:11:14,873 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:11:14,875 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:11:14,877 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:11:14,878 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:11:14,879 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:11:14,882 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:11:14,883 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:11:14,883 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:11:14,884 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:11:14,885 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:11:14,886 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:11:14,887 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:11:14,888 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:11:14,888 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:11:14,889 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:11:14,890 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:11:14,890 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:11:14,891 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:11:14,892 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:11:14,892 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:11:14,917 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:11:14,918 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:11:14,920 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:11:14,920 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:11:14,922 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:11:14,923 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:11:14,923 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:11:14,923 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:11:14,923 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:11:14,924 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:11:14,924 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:11:14,924 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:11:14,924 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:11:14,924 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:11:14,924 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:11:14,925 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:11:14,925 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:11:14,925 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:11:14,925 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:11:14,927 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:11:14,929 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:11:14,929 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:11:14,929 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:11:14,929 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:11:14,930 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:11:14,930 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:11:14,930 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:11:14,930 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:11:14,930 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:11:14,931 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:11:14,931 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:11:14,931 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 -> 0d806ca1b262345211037ccd3e4a22cabffa047b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:11:15,002 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:11:15,021 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:11:15,029 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:11:15,031 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:11:15,031 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:11:15,032 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092b_true-unreach-call.c [2018-09-21 18:11:15,388 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/984421ad9/cad6c1a4aef54836a3ea64d114f76683/FLAG09f26a68e [2018-09-21 18:11:15,523 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:11:15,524 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092b_true-unreach-call.c [2018-09-21 18:11:15,531 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/984421ad9/cad6c1a4aef54836a3ea64d114f76683/FLAG09f26a68e [2018-09-21 18:11:15,548 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/984421ad9/cad6c1a4aef54836a3ea64d114f76683 [2018-09-21 18:11:15,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:11:15,558 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:11:15,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:15,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:11:15,567 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:11:15,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:15" (1/1) ... [2018-09-21 18:11:15,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e9e930c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:15, skipping insertion in model container [2018-09-21 18:11:15,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:11:15" (1/1) ... [2018-09-21 18:11:15,584 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:11:15,804 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:15,824 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:11:15,848 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:11:15,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:15 WrapperNode [2018-09-21 18:11:15,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:11:15,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:11:15,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:11:15,893 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:11:15,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:15" (1/1) ... [2018-09-21 18:11:15,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:15" (1/1) ... [2018-09-21 18:11:15,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:15" (1/1) ... [2018-09-21 18:11:15,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:15" (1/1) ... [2018-09-21 18:11:15,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:15" (1/1) ... [2018-09-21 18:11:15,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:15" (1/1) ... [2018-09-21 18:11:15,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:15" (1/1) ... [2018-09-21 18:11:15,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:11:15,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:11:15,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:11:15,947 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:11:15,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:11:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:11:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:11:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:11:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-09-21 18:11:16,174 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:11:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:11:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:11:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-09-21 18:11:16,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:11:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 18:11:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:11:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:11:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:11:16,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 18:11:16,176 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:11:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:11:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:11:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 18:11:16,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:11:16,493 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:16,559 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:16,639 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:11:18,152 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:11:18,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:18 BoogieIcfgContainer [2018-09-21 18:11:18,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:11:18,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:11:18,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:11:18,158 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:11:18,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:11:15" (1/3) ... [2018-09-21 18:11:18,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec305ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:18, skipping insertion in model container [2018-09-21 18:11:18,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:11:15" (2/3) ... [2018-09-21 18:11:18,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec305ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:11:18, skipping insertion in model container [2018-09-21 18:11:18,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:18" (3/3) ... [2018-09-21 18:11:18,162 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b_true-unreach-call.c [2018-09-21 18:11:18,172 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:11:18,180 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:11:18,225 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:11:18,226 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:11:18,226 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:11:18,226 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:11:18,226 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:11:18,226 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:11:18,229 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:11:18,229 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:11:18,229 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:11:18,245 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-09-21 18:11:18,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-21 18:11:18,257 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:18,258 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:18,261 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:18,266 INFO L82 PathProgramCache]: Analyzing trace with hash 1001944266, now seen corresponding path program 1 times [2018-09-21 18:11:18,272 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:18,272 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-21 18:11:18,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:18,353 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:18,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:18,372 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:18,388 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:18,388 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:11:18,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:11:18,405 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:11:18,406 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:11:18,409 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-09-21 18:11:18,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:18,428 INFO L93 Difference]: Finished difference Result 64 states and 78 transitions. [2018-09-21 18:11:18,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:11:18,430 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-21 18:11:18,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:18,442 INFO L225 Difference]: With dead ends: 64 [2018-09-21 18:11:18,443 INFO L226 Difference]: Without dead ends: 60 [2018-09-21 18:11:18,445 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:11:18,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-09-21 18:11:18,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-09-21 18:11:18,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-21 18:11:18,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2018-09-21 18:11:18,485 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 18 [2018-09-21 18:11:18,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:18,485 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2018-09-21 18:11:18,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:11:18,486 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2018-09-21 18:11:18,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:11:18,487 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:18,487 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:18,488 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:18,488 INFO L82 PathProgramCache]: Analyzing trace with hash -262001498, now seen corresponding path program 1 times [2018-09-21 18:11:18,489 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:18,489 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) [2018-09-21 18:11:18,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-21 18:11:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:18,585 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:18,792 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 18:11:18,803 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 18:11:18,804 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:18,810 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:18,871 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 18:11:18,872 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:11:18,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-21 18:11:18,928 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 18:11:18,929 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:18,938 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:18,953 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:18,953 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:11:19,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:19,587 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:19,600 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:19,601 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:11:19,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:11:19,603 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:11:19,604 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:11:19,604 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand 9 states. [2018-09-21 18:11:27,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:27,910 INFO L93 Difference]: Finished difference Result 112 states and 123 transitions. [2018-09-21 18:11:27,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-21 18:11:27,912 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-09-21 18:11:27,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:27,916 INFO L225 Difference]: With dead ends: 112 [2018-09-21 18:11:27,916 INFO L226 Difference]: Without dead ends: 69 [2018-09-21 18:11:27,918 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:11:27,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-09-21 18:11:27,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 51. [2018-09-21 18:11:27,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-21 18:11:27,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2018-09-21 18:11:27,926 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 31 [2018-09-21 18:11:27,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:27,927 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2018-09-21 18:11:27,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:11:27,927 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2018-09-21 18:11:27,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:11:27,928 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:27,929 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:27,929 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:27,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1963531185, now seen corresponding path program 1 times [2018-09-21 18:11:27,930 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:27,930 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:11:27,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:27,997 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:28,032 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 18:11:28,040 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 18:11:28,041 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:28,047 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:28,063 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 18:11:28,064 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:11:28,113 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 18:11:28,120 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 18:11:28,121 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:28,128 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:28,183 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:28,183 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:11:28,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:28,455 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:28,467 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:28,467 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:11:28,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:11:28,468 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:11:28,468 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:11:28,468 INFO L87 Difference]: Start difference. First operand 51 states and 57 transitions. Second operand 9 states. [2018-09-21 18:11:29,679 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-09-21 18:11:33,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:33,614 INFO L93 Difference]: Finished difference Result 99 states and 102 transitions. [2018-09-21 18:11:33,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-21 18:11:33,618 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-09-21 18:11:33,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:33,619 INFO L225 Difference]: With dead ends: 99 [2018-09-21 18:11:33,619 INFO L226 Difference]: Without dead ends: 62 [2018-09-21 18:11:33,620 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-21 18:11:33,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-09-21 18:11:33,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 47. [2018-09-21 18:11:33,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-09-21 18:11:33,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2018-09-21 18:11:33,627 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 31 [2018-09-21 18:11:33,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:33,627 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2018-09-21 18:11:33,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:11:33,628 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2018-09-21 18:11:33,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-21 18:11:33,629 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:33,629 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:11:33,630 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:33,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1759812404, now seen corresponding path program 1 times [2018-09-21 18:11:33,630 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:33,631 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:11:33,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:33,774 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:37,652 WARN L178 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-21 18:11:37,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:37,683 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:37,697 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:37,697 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-21 18:11:37,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-21 18:11:37,698 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-21 18:11:37,698 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-21 18:11:37,698 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 6 states. [2018-09-21 18:11:42,102 WARN L178 SmtUtils]: Spent 1.91 s on a formula simplification that was a NOOP. DAG size: 13 [2018-09-21 18:11:42,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:42,949 INFO L93 Difference]: Finished difference Result 62 states and 63 transitions. [2018-09-21 18:11:42,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-21 18:11:42,950 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2018-09-21 18:11:42,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:42,952 INFO L225 Difference]: With dead ends: 62 [2018-09-21 18:11:42,952 INFO L226 Difference]: Without dead ends: 47 [2018-09-21 18:11:42,952 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-21 18:11:42,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-09-21 18:11:42,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-09-21 18:11:42,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-09-21 18:11:42,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2018-09-21 18:11:42,958 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 44 [2018-09-21 18:11:42,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:42,959 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2018-09-21 18:11:42,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-21 18:11:42,959 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2018-09-21 18:11:42,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-21 18:11:42,961 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:42,962 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] [2018-09-21 18:11:42,962 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:42,962 INFO L82 PathProgramCache]: Analyzing trace with hash 623561467, now seen corresponding path program 1 times [2018-09-21 18:11:42,963 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:42,963 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:11:42,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:43,121 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:43,157 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 18:11:43,164 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 18:11:43,165 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:43,174 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:43,192 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 18:11:43,192 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:11:43,239 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 18:11:43,254 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 18:11:43,254 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:43,280 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:43,357 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:43,358 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:11:43,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:43,779 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:43,794 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:43,794 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-21 18:11:43,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-21 18:11:43,795 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-21 18:11:43,796 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-21 18:11:43,796 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 8 states. [2018-09-21 18:11:45,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:45,586 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2018-09-21 18:11:45,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:11:45,588 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2018-09-21 18:11:45,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:45,589 INFO L225 Difference]: With dead ends: 77 [2018-09-21 18:11:45,589 INFO L226 Difference]: Without dead ends: 62 [2018-09-21 18:11:45,590 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2018-09-21 18:11:45,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-09-21 18:11:45,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 47. [2018-09-21 18:11:45,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-09-21 18:11:45,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2018-09-21 18:11:45,596 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 45 [2018-09-21 18:11:45,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:45,596 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2018-09-21 18:11:45,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-21 18:11:45,596 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2018-09-21 18:11:45,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-21 18:11:45,598 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:45,598 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] [2018-09-21 18:11:45,598 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:45,598 INFO L82 PathProgramCache]: Analyzing trace with hash -2005267350, now seen corresponding path program 1 times [2018-09-21 18:11:45,599 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:45,599 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-21 18:11:45,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:45,776 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:45,811 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:11:45,812 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:11:45,814 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 18:11:45,849 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:11:45,868 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 18:11:45,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:45,891 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:45,911 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 18:11:45,911 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-21 18:11:46,124 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:11:46,124 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:11:46,126 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 54 treesize of output 56 [2018-09-21 18:11:46,144 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:11:46,163 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 56 treesize of output 52 [2018-09-21 18:11:46,164 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:46,199 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:46,245 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 18:11:46,245 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-21 18:11:46,340 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 35 treesize of output 27 [2018-09-21 18:11:46,376 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:11:46,403 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 27 treesize of output 15 [2018-09-21 18:11:46,403 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:46,511 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:46,611 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:46,611 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-21 18:11:47,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:47,201 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:47,218 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:47,218 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:11:47,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:11:47,219 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:11:47,219 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:11:47,220 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 10 states. [2018-09-21 18:11:47,965 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-21 18:11:48,204 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-21 18:11:49,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:49,794 INFO L93 Difference]: Finished difference Result 62 states and 61 transitions. [2018-09-21 18:11:49,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-21 18:11:49,796 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 46 [2018-09-21 18:11:49,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:49,797 INFO L225 Difference]: With dead ends: 62 [2018-09-21 18:11:49,797 INFO L226 Difference]: Without dead ends: 47 [2018-09-21 18:11:49,797 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2018-09-21 18:11:49,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-09-21 18:11:49,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-09-21 18:11:49,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-09-21 18:11:49,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 46 transitions. [2018-09-21 18:11:49,802 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 46 transitions. Word has length 46 [2018-09-21 18:11:49,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:49,802 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 46 transitions. [2018-09-21 18:11:49,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:11:49,803 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 46 transitions. [2018-09-21 18:11:49,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-21 18:11:49,804 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:11:49,804 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] [2018-09-21 18:11:49,804 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:11:49,804 INFO L82 PathProgramCache]: Analyzing trace with hash 600756204, now seen corresponding path program 1 times [2018-09-21 18:11:49,805 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:11:49,805 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-21 18:11:49,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:11:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:11:49,992 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:11:50,032 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 18:11:50,038 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 18:11:50,039 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:50,047 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:50,064 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 18:11:50,064 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:11:50,105 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 18:11:50,113 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 18:11:50,114 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:50,117 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:50,127 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:50,127 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:11:50,503 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 18:11:50,508 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 18:11:50,508 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:50,515 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:50,539 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 18:11:50,539 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:26 [2018-09-21 18:11:50,620 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 22 treesize of output 17 [2018-09-21 18:11:50,627 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:11:50,628 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:11:50,629 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 33 [2018-09-21 18:11:50,630 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:50,650 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:50,679 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:50,680 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:30 [2018-09-21 18:11:50,764 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 66 treesize of output 50 [2018-09-21 18:11:50,783 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:11:50,784 INFO L682 Elim1Store]: detected equality via solver [2018-09-21 18:11:50,785 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 50 treesize of output 35 [2018-09-21 18:11:50,785 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:11:50,801 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:11:50,821 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-21 18:11:50,821 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:75, output treesize:38 [2018-09-21 18:11:51,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:11:51,444 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:11:51,456 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:11:51,456 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-21 18:11:51,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-21 18:11:51,457 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-21 18:11:51,457 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2018-09-21 18:11:51,459 INFO L87 Difference]: Start difference. First operand 47 states and 46 transitions. Second operand 15 states. [2018-09-21 18:11:52,147 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-21 18:11:55,701 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2018-09-21 18:11:56,013 WARN L178 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2018-09-21 18:11:56,354 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2018-09-21 18:11:56,700 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2018-09-21 18:11:57,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:11:57,383 INFO L93 Difference]: Finished difference Result 45 states and 44 transitions. [2018-09-21 18:11:57,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-21 18:11:57,385 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 46 [2018-09-21 18:11:57,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:11:57,385 INFO L225 Difference]: With dead ends: 45 [2018-09-21 18:11:57,385 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:11:57,386 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2018-09-21 18:11:57,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:11:57,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:11:57,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:11:57,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:11:57,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2018-09-21 18:11:57,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:11:57,387 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:11:57,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-21 18:11:57,388 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:11:57,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:11:57,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:11:57 BoogieIcfgContainer [2018-09-21 18:11:57,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:11:57,394 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:11:57,394 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:11:57,394 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:11:57,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:11:18" (3/4) ... [2018-09-21 18:11:57,398 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:11:57,406 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-21 18:11:57,407 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:11:57,407 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-09-21 18:11:57,407 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:11:57,417 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-09-21 18:11:57,418 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-21 18:11:57,418 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-21 18:11:57,518 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:11:57,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:11:57,523 INFO L168 Benchmark]: Toolchain (without parser) took 41967.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.6 MB). Free memory was 951.8 MB in the beginning and 934.5 MB in the end (delta: 17.3 MB). Peak memory consumption was 224.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:57,525 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:57,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.93 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:57,526 INFO L168 Benchmark]: Boogie Preprocessor took 53.36 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:11:57,527 INFO L168 Benchmark]: RCFGBuilder took 2206.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:57,527 INFO L168 Benchmark]: TraceAbstraction took 39239.16 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 49.8 MB). Free memory was 1.1 GB in the beginning and 942.0 MB in the end (delta: 175.9 MB). Peak memory consumption was 225.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:57,528 INFO L168 Benchmark]: Witness Printer took 127.77 ms. Allocated memory is still 1.2 GB. Free memory was 942.0 MB in the beginning and 934.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:11:57,536 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 332.93 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 53.36 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 2206.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 39239.16 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 49.8 MB). Free memory was 1.1 GB in the beginning and 942.0 MB in the end (delta: 175.9 MB). Peak memory consumption was 225.7 MB. Max. memory is 11.5 GB. * Witness Printer took 127.77 ms. Allocated memory is still 1.2 GB. Free memory was 942.0 MB in the beginning and 934.5 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: 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, 67 locations, 1 error locations. SAFE Result, 39.1s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 29.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 326 SDtfs, 579 SDslu, 1200 SDs, 0 SdLazy, 920 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 308 GetRequests, 207 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 16.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred 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, 7 MinimizatonAttempts, 48 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 254 ConstructedInterpolants, 131 QuantifiedInterpolants, 129672 SizeOfPredicates, 46 NumberOfNonLiveVariables, 522 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...