/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1211b_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_1211b_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 74f3a1a5b01d98fb4c2f4ed92e174c29e400a21a --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_1211b_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 74f3a1a5b01d98fb4c2f4ed92e174c29e400a21a --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 18:12:00,558 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:12:00,562 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:12:00,582 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:12:00,584 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:12:00,585 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:12:00,589 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:12:00,594 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:12:00,597 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:12:00,600 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:12:00,602 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:12:00,603 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:12:00,604 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:12:00,611 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:12:00,616 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:12:00,617 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:12:00,620 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:12:00,623 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:12:00,629 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:12:00,634 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:12:00,635 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:12:00,638 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:12:00,646 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:12:00,646 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:12:00,646 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:12:00,647 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:12:00,648 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:12:00,651 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:12:00,652 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:12:00,653 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:12:00,654 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:12:00,654 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:12:00,658 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:12:00,659 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:12:00,661 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:12:00,663 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:12:00,666 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:12:00,696 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:12:00,697 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:12:00,698 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:12:00,701 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:12:00,703 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:12:00,704 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:12:00,704 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:12:00,705 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:12:00,705 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:12:00,705 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:12:00,705 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:12:00,707 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:12:00,707 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:12:00,707 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:12:00,707 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:12:00,708 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:12:00,708 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:12:00,708 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:12:00,709 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:12:00,709 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:12:00,709 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:12:00,709 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:12:00,709 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:12:00,710 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:12:00,710 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:12:00,710 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:12:00,710 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:12:00,713 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:12:00,713 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:12:00,714 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 -> 74f3a1a5b01d98fb4c2f4ed92e174c29e400a21a 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 18:12:00,786 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:12:00,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:12:00,810 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:12:00,812 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:12:00,812 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:12:00,813 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1211b_true-unreach-call.c [2018-09-21 18:12:01,184 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcfc53267/67df3be59ac9440684eb45600aa520b8/FLAG20f063af1 [2018-09-21 18:12:01,368 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:12:01,369 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1211b_true-unreach-call.c [2018-09-21 18:12:01,379 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcfc53267/67df3be59ac9440684eb45600aa520b8/FLAG20f063af1 [2018-09-21 18:12:01,406 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcfc53267/67df3be59ac9440684eb45600aa520b8 [2018-09-21 18:12:01,410 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:12:01,412 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:12:01,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:12:01,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:12:01,420 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:12:01,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:12:01" (1/1) ... [2018-09-21 18:12:01,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e69e023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:01, skipping insertion in model container [2018-09-21 18:12:01,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:12:01" (1/1) ... [2018-09-21 18:12:01,436 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:12:01,703 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:12:01,735 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:12:01,787 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:12:01,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:01 WrapperNode [2018-09-21 18:12:01,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:12:01,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:12:01,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:12:01,830 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:12:01,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:01" (1/1) ... [2018-09-21 18:12:01,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:01" (1/1) ... [2018-09-21 18:12:01,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:01" (1/1) ... [2018-09-21 18:12:01,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:01" (1/1) ... [2018-09-21 18:12:01,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:01" (1/1) ... [2018-09-21 18:12:01,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:01" (1/1) ... [2018-09-21 18:12:01,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:01" (1/1) ... [2018-09-21 18:12:01,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:12:01,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:12:01,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:12:01,908 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:12:01,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:12:02,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:12:02,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:12:02,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:12:02,050 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2018-09-21 18:12:02,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-21 18:12:02,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-21 18:12:02,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:12:02,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:12:02,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 18:12:02,051 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:12:02,051 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2018-09-21 18:12:02,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:12:02,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:12:02,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:12:02,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:12:02,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:12:02,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:12:02,052 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-21 18:12:02,053 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-21 18:12:02,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:12:02,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:12:02,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:12:02,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:12:02,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:12:03,201 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:12:03,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:12:03 BoogieIcfgContainer [2018-09-21 18:12:03,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:12:03,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:12:03,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:12:03,208 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:12:03,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:12:01" (1/3) ... [2018-09-21 18:12:03,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ca94f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:12:03, skipping insertion in model container [2018-09-21 18:12:03,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:01" (2/3) ... [2018-09-21 18:12:03,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ca94f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:12:03, skipping insertion in model container [2018-09-21 18:12:03,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:12:03" (3/3) ... [2018-09-21 18:12:03,213 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1211b_true-unreach-call.c [2018-09-21 18:12:03,224 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:12:03,233 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:12:03,274 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:12:03,275 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:12:03,275 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:12:03,275 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:12:03,275 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:12:03,275 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:12:03,276 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:12:03,276 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:12:03,276 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:12:03,299 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2018-09-21 18:12:03,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:12:03,315 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:12:03,316 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:12:03,319 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:12:03,324 INFO L82 PathProgramCache]: Analyzing trace with hash -815238136, now seen corresponding path program 1 times [2018-09-21 18:12:03,326 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:12:03,327 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:12:03,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:12:03,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:12:03,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:12:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:12:03,510 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 18:12:03,513 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:12:03,514 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:12:03,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:12:03,538 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:12:03,539 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:12:03,542 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 2 states. [2018-09-21 18:12:03,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:12:03,577 INFO L93 Difference]: Finished difference Result 190 states and 196 transitions. [2018-09-21 18:12:03,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:12:03,578 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2018-09-21 18:12:03,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:12:03,593 INFO L225 Difference]: With dead ends: 190 [2018-09-21 18:12:03,593 INFO L226 Difference]: Without dead ends: 184 [2018-09-21 18:12:03,596 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 18:12:03,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-09-21 18:12:03,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2018-09-21 18:12:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-09-21 18:12:03,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 190 transitions. [2018-09-21 18:12:03,652 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 190 transitions. Word has length 31 [2018-09-21 18:12:03,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:12:03,652 INFO L480 AbstractCegarLoop]: Abstraction has 184 states and 190 transitions. [2018-09-21 18:12:03,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:12:03,653 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 190 transitions. [2018-09-21 18:12:03,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-21 18:12:03,661 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:12:03,661 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:12:03,662 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:12:03,662 INFO L82 PathProgramCache]: Analyzing trace with hash -2015285196, now seen corresponding path program 1 times [2018-09-21 18:12:03,664 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:12:03,665 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:12:03,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:12:03,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:12:03,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:12:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:12:03,883 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 18:12:03,883 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:12:03,884 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 18:12:03,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 18:12:03,889 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 18:12:03,890 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:12:03,891 INFO L87 Difference]: Start difference. First operand 184 states and 190 transitions. Second operand 3 states. [2018-09-21 18:12:03,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:12:03,987 INFO L93 Difference]: Finished difference Result 185 states and 190 transitions. [2018-09-21 18:12:03,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 18:12:03,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2018-09-21 18:12:03,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:12:03,994 INFO L225 Difference]: With dead ends: 185 [2018-09-21 18:12:03,995 INFO L226 Difference]: Without dead ends: 184 [2018-09-21 18:12:03,996 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:12:03,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-09-21 18:12:04,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2018-09-21 18:12:04,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-09-21 18:12:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 189 transitions. [2018-09-21 18:12:04,018 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 189 transitions. Word has length 66 [2018-09-21 18:12:04,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:12:04,019 INFO L480 AbstractCegarLoop]: Abstraction has 184 states and 189 transitions. [2018-09-21 18:12:04,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 18:12:04,019 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 189 transitions. [2018-09-21 18:12:04,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-09-21 18:12:04,023 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:12:04,023 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:04,023 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:12:04,024 INFO L82 PathProgramCache]: Analyzing trace with hash 330775915, now seen corresponding path program 1 times [2018-09-21 18:12:04,024 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:12:04,024 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:12:04,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:12:04,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:12:04,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:12:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:12:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:12:04,294 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:12:04,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:12:04 BoogieIcfgContainer [2018-09-21 18:12:04,400 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:12:04,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:12:04,401 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:12:04,401 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:12:04,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:12:03" (3/4) ... [2018-09-21 18:12:04,408 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:12:04,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:12:04,409 INFO L168 Benchmark]: Toolchain (without parser) took 2998.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.9 MB in the beginning and 1.0 GB in the end (delta: -86.3 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:12:04,411 INFO L168 Benchmark]: CDTParser took 0.21 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 18:12:04,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.40 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 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 18:12:04,412 INFO L168 Benchmark]: Boogie Preprocessor took 76.72 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 18:12:04,413 INFO L168 Benchmark]: RCFGBuilder took 1294.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2018-09-21 18:12:04,415 INFO L168 Benchmark]: TraceAbstraction took 1196.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:12:04,416 INFO L168 Benchmark]: Witness Printer took 7.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-21 18:12:04,423 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 416.40 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 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 76.72 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 1294.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -156.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1196.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 11.5 GB. * Witness Printer took 7.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 150]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 120, overapproximation of someBinaryArithmeticDOUBLEoperation at line 144, overapproximation of bitwiseAnd at line 119, overapproximation of someBinaryDOUBLEComparisonOperation at line 149. Possible FailurePath: [L18] static const double one_modf = 1.0; VAL [\old(one_modf)=10737418243, one_modf=1] [L144] double x = -1.0 / 0.0; VAL [one_modf=1] [L145] FCALL double iptr = __VERIFIER_nondet_double(); VAL [iptr={10737418246:0}, one_modf=1] [L145] FCALL double iptr = __VERIFIER_nondet_double(); VAL [__VERIFIER_nondet_double()=10737418245, iptr={10737418246:0}, one_modf=1] [L146] CALL, EXPR modf_double(x, &iptr) VAL [\old(x)=10737418250, iptr={10737418246:0}, one_modf=1] [L21] __int32_t i0, i1, j0; [L22] __uint32_t i; VAL [\old(x)=10737418250, iptr={10737418246:0}, iptr={10737418246:0}, one_modf=1, x=10737418250] [L24] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=10737418250, ew_u={10737418242:0}, iptr={10737418246:0}, iptr={10737418246:0}, one_modf=1, x=10737418250] [L25] FCALL ew_u.value = (x) VAL [\old(x)=10737418250, ew_u={10737418242:0}, iptr={10737418246:0}, iptr={10737418246:0}, one_modf=1, x=10737418250] [L26] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=10737418250, ew_u={10737418242:0}, ew_u.parts.msw=3, iptr={10737418246:0}, iptr={10737418246:0}, one_modf=1, x=10737418250] [L26] (i0) = ew_u.parts.msw VAL [\old(x)=10737418250, ew_u={10737418242:0}, ew_u.parts.msw=3, i0=3, iptr={10737418246:0}, iptr={10737418246:0}, one_modf=1, x=10737418250] [L26] FCALL (i0) = ew_u.parts.msw VAL [(i0) = ew_u.parts.msw=10737418252, \old(x)=10737418250, ew_u={10737418242:0}, ew_u.parts.msw=3, i0=3, iptr={10737418246:0}, iptr={10737418246:0}, one_modf=1, x=10737418250] [L27] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=10737418250, ew_u={10737418242:0}, ew_u.parts.lsw=6442450943, i0=3, iptr={10737418246:0}, iptr={10737418246:0}, one_modf=1, x=10737418250] [L27] (i1) = ew_u.parts.lsw VAL [\old(x)=10737418250, ew_u={10737418242:0}, ew_u.parts.lsw=6442450943, i0=3, i1=2147483647, iptr={10737418246:0}, iptr={10737418246:0}, one_modf=1, x=10737418250] [L27] FCALL (i1) = ew_u.parts.lsw VAL [(i1) = ew_u.parts.lsw=10737418251, \old(x)=10737418250, ew_u={10737418242:0}, ew_u.parts.lsw=6442450943, i0=3, i1=2147483647, iptr={10737418246:0}, iptr={10737418246:0}, one_modf=1, x=10737418250] [L28] COND FALSE !(0) VAL [\old(x)=10737418250, i0=3, i1=2147483647, iptr={10737418246:0}, iptr={10737418246:0}, one_modf=1, x=10737418250] [L29] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418250, i0=3, i1=2147483647, iptr={10737418246:0}, iptr={10737418246:0}, one_modf=1, x=10737418250] [L30] COND TRUE j0 < 20 VAL [\old(x)=10737418250, i0=3, i1=2147483647, iptr={10737418246:0}, iptr={10737418246:0}, j0=-1, one_modf=1, x=10737418250] [L31] COND TRUE j0 < 0 VAL [\old(x)=10737418250, i0=3, i1=2147483647, iptr={10737418246:0}, iptr={10737418246:0}, j0=-1, one_modf=1, x=10737418250] [L33] FCALL ieee_double_shape_type iw_u; VAL [\old(x)=10737418250, i0=3, i1=2147483647, iptr={10737418246:0}, iptr={10737418246:0}, iw_u={10737418254:0}, j0=-1, one_modf=1, x=10737418250] [L34] FCALL iw_u.parts.msw = (i0 & 0x80000000) VAL [\old(x)=10737418250, i0=3, i1=2147483647, iptr={10737418246:0}, iptr={10737418246:0}, iw_u={10737418254:0}, j0=-1, one_modf=1, x=10737418250] [L35] FCALL iw_u.parts.lsw = (0) VAL [\old(x)=10737418250, i0=3, i1=2147483647, iptr={10737418246:0}, iptr={10737418246:0}, iw_u={10737418254:0}, j0=-1, one_modf=1, x=10737418250] [L36] EXPR, FCALL iw_u.value VAL [\old(x)=10737418250, i0=3, i1=2147483647, iptr={10737418246:0}, iptr={10737418246:0}, iw_u={10737418254:0}, iw_u.value=10737418248, j0=-1, one_modf=1, x=10737418250] [L36] FCALL (*iptr) = iw_u.value VAL [\old(x)=10737418250, i0=3, i1=2147483647, iptr={10737418246:0}, iptr={10737418246:0}, iw_u={10737418254:0}, iw_u.value=10737418248, j0=-1, one_modf=1, x=10737418250] [L37] COND FALSE !(0) VAL [\old(x)=10737418250, i0=3, i1=2147483647, iptr={10737418246:0}, iptr={10737418246:0}, j0=-1, one_modf=1, x=10737418250] [L38] RET return x; VAL [\old(x)=10737418250, \result=10737418250, i0=3, i1=2147483647, iptr={10737418246:0}, iptr={10737418246:0}, j0=-1, one_modf=1, x=10737418250] [L146] EXPR modf_double(x, &iptr) VAL [iptr={10737418246:0}, modf_double(x, &iptr)=10737418250, one_modf=1, x=10737418250] [L146] double res = modf_double(x, &iptr); [L149] EXPR, FCALL \read(iptr) VAL [\read(iptr)=10737418248, iptr={10737418246:0}, one_modf=1, res=10737418250, x=10737418250] [L149] CALL, EXPR isinf_double(iptr) VAL [\old(x)=10737418248, one_modf=1] [L112] __int32_t hx, lx; VAL [\old(x)=10737418248, one_modf=1, x=10737418248] [L114] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=10737418248, ew_u={10737418255:0}, one_modf=1, x=10737418248] [L115] FCALL ew_u.value = (x) VAL [\old(x)=10737418248, ew_u={10737418255:0}, one_modf=1, x=10737418248] [L116] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=10737418248, ew_u={10737418255:0}, ew_u.parts.msw=6442450944, one_modf=1, x=10737418248] [L116] (hx) = ew_u.parts.msw VAL [\old(x)=10737418248, ew_u={10737418255:0}, ew_u.parts.msw=6442450944, hx=-2147483648, one_modf=1, x=10737418248] [L116] FCALL (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=10737418247, \old(x)=10737418248, ew_u={10737418255:0}, ew_u.parts.msw=6442450944, hx=-2147483648, one_modf=1, x=10737418248] [L117] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=10737418248, ew_u={10737418255:0}, ew_u.parts.lsw=10737418240, hx=-2147483648, one_modf=1, x=10737418248] [L117] (lx) = ew_u.parts.lsw VAL [\old(x)=10737418248, ew_u={10737418255:0}, ew_u.parts.lsw=10737418240, hx=-2147483648, lx=-2147483648, one_modf=1, x=10737418248] [L117] FCALL (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=10737418249, \old(x)=10737418248, ew_u={10737418255:0}, ew_u.parts.lsw=10737418240, hx=-2147483648, lx=-2147483648, one_modf=1, x=10737418248] [L118] COND FALSE !(0) VAL [\old(x)=10737418248, hx=-2147483648, lx=-2147483648, one_modf=1, x=10737418248] [L119] hx &= 0x7fffffff [L120] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L121] hx = 0x7ff00000 - hx [L122] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418248, \result=1, hx=2146435072, lx=-2147483648, one_modf=1, x=10737418248] [L149] EXPR isinf_double(iptr) VAL [\read(iptr)=10737418248, iptr={10737418246:0}, isinf_double(iptr)=1, one_modf=1, res=10737418250, x=10737418250] [L149] isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1) VAL [\read(iptr)=10737418248, iptr={10737418246:0}, isinf_double(iptr)=1, isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1)=1, one_modf=1, res=10737418250, x=10737418250] [L149] COND TRUE isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1) [L149] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [\read(iptr)=10737418248, iptr={10737418246:0}, isinf_double(iptr)=1, isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1)=1, one_modf=1, res=10737418250, res == -0.0 && __signbit_double(res) == 1=0, x=10737418250] [L149] COND FALSE, EXPR !(res == -0.0 && __signbit_double(res) == 1) VAL [\read(iptr)=10737418248, iptr={10737418246:0}, isinf_double(iptr)=1, isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1)=1, one_modf=1, res=10737418250, res == -0.0 && __signbit_double(res) == 1=0, x=10737418250] [L149] isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1) VAL [\read(iptr)=10737418248, iptr={10737418246:0}, isinf_double(iptr)=1, isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1)=1, one_modf=1, res=10737418250, res == -0.0 && __signbit_double(res) == 1=0, x=10737418250] [L149] COND TRUE isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1) [L150] __VERIFIER_error() VAL [iptr={10737418246:0}, one_modf=1, res=10737418250, x=10737418250] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 195 locations, 1 error locations. UNSAFE Result, 1.1s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 386 SDtfs, 0 SDslu, 185 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 5190 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:12:06,837 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:12:06,839 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:12:06,853 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:12:06,853 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:12:06,857 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:12:06,858 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:12:06,863 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:12:06,867 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:12:06,868 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:12:06,869 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:12:06,872 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:12:06,873 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:12:06,876 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:12:06,881 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:12:06,882 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:12:06,883 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:12:06,888 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:12:06,892 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:12:06,897 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:12:06,898 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:12:06,905 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:12:06,910 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:12:06,910 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:12:06,910 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:12:06,911 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:12:06,915 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:12:06,916 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:12:06,917 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:12:06,920 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:12:06,923 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:12:06,924 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:12:06,924 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:12:06,924 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:12:06,927 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:12:06,929 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:12:06,930 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:12:06,953 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:12:06,953 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:12:06,954 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:12:06,954 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:12:06,955 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:12:06,956 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:12:06,956 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:12:06,956 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:12:06,956 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:12:06,957 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:12:06,957 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:12:06,957 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:12:06,957 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:12:06,957 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:12:06,957 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:12:06,958 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:12:06,958 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:12:06,958 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:12:06,958 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:12:06,960 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:12:06,960 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:12:06,960 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:12:06,961 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:12:06,961 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:12:06,961 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:12:06,961 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:12:06,961 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:12:06,962 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:12:06,962 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:12:06,962 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:12:06,962 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:12:06,962 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 -> 74f3a1a5b01d98fb4c2f4ed92e174c29e400a21a 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 18:12:07,017 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:12:07,036 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:12:07,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:12:07,044 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:12:07,045 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:12:07,046 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1211b_true-unreach-call.c [2018-09-21 18:12:07,436 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/858a48efd/d830d45c29fd40f6afa7e58a231a442d/FLAGa797463c2 [2018-09-21 18:12:07,636 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:12:07,639 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1211b_true-unreach-call.c [2018-09-21 18:12:07,651 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/858a48efd/d830d45c29fd40f6afa7e58a231a442d/FLAGa797463c2 [2018-09-21 18:12:07,674 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/858a48efd/d830d45c29fd40f6afa7e58a231a442d [2018-09-21 18:12:07,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:12:07,683 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:12:07,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:12:07,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:12:07,695 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:12:07,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:12:07" (1/1) ... [2018-09-21 18:12:07,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4758a33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:07, skipping insertion in model container [2018-09-21 18:12:07,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:12:07" (1/1) ... [2018-09-21 18:12:07,718 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:12:07,997 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:12:08,030 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:12:08,078 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:12:08,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:08 WrapperNode [2018-09-21 18:12:08,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:12:08,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:12:08,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:12:08,111 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:12:08,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:08" (1/1) ... [2018-09-21 18:12:08,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:08" (1/1) ... [2018-09-21 18:12:08,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:08" (1/1) ... [2018-09-21 18:12:08,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:08" (1/1) ... [2018-09-21 18:12:08,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:08" (1/1) ... [2018-09-21 18:12:08,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:08" (1/1) ... [2018-09-21 18:12:08,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:08" (1/1) ... [2018-09-21 18:12:08,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:12:08,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:12:08,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:12:08,193 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:12:08,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:08" (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 18:12:08,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:12:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:12:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-21 18:12:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_double [2018-09-21 18:12:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-21 18:12:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-09-21 18:12:08,365 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:12:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:12:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-21 18:12:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-21 18:12:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure modf_double [2018-09-21 18:12:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:12:08,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-21 18:12:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:12:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:12:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:12:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-21 18:12:08,368 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-21 18:12:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-09-21 18:12:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:12:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-21 18:12:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:12:08,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:12:08,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:12:08,676 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:08,712 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:08,739 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:08,792 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:08,810 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:08,884 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:09,023 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:09,053 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:09,072 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:09,208 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:09,414 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:09,429 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:09,482 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:09,519 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:09,534 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:09,546 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:09,557 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:09,626 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:10,093 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:10,109 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:10,117 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:12:10,149 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:12:10,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:12:10 BoogieIcfgContainer [2018-09-21 18:12:10,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:12:10,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:12:10,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:12:10,157 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:12:10,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:12:07" (1/3) ... [2018-09-21 18:12:10,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fde74b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:12:10, skipping insertion in model container [2018-09-21 18:12:10,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:12:08" (2/3) ... [2018-09-21 18:12:10,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fde74b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:12:10, skipping insertion in model container [2018-09-21 18:12:10,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:12:10" (3/3) ... [2018-09-21 18:12:10,162 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1211b_true-unreach-call.c [2018-09-21 18:12:10,170 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:12:10,177 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:12:10,218 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:12:10,218 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:12:10,219 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:12:10,219 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:12:10,219 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:12:10,219 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:12:10,219 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:12:10,219 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:12:10,220 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:12:10,240 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2018-09-21 18:12:10,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-21 18:12:10,256 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:12:10,258 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 18:12:10,260 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:12:10,266 INFO L82 PathProgramCache]: Analyzing trace with hash -815238136, now seen corresponding path program 1 times [2018-09-21 18:12:10,271 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:12:10,272 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 18:12:10,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:12:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:12:10,375 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:12:10,401 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 18:12:10,402 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:12:10,421 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:12:10,421 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:12:10,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:12:10,444 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:12:10,444 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:12:10,448 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 2 states. [2018-09-21 18:12:10,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:12:10,483 INFO L93 Difference]: Finished difference Result 190 states and 196 transitions. [2018-09-21 18:12:10,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:12:10,485 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 31 [2018-09-21 18:12:10,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:12:10,501 INFO L225 Difference]: With dead ends: 190 [2018-09-21 18:12:10,501 INFO L226 Difference]: Without dead ends: 184 [2018-09-21 18:12:10,504 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 18:12:10,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-09-21 18:12:10,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2018-09-21 18:12:10,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-09-21 18:12:10,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 190 transitions. [2018-09-21 18:12:10,562 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 190 transitions. Word has length 31 [2018-09-21 18:12:10,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:12:10,563 INFO L480 AbstractCegarLoop]: Abstraction has 184 states and 190 transitions. [2018-09-21 18:12:10,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:12:10,563 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 190 transitions. [2018-09-21 18:12:10,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-21 18:12:10,567 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:12:10,568 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:12:10,568 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:12:10,569 INFO L82 PathProgramCache]: Analyzing trace with hash -2015285196, now seen corresponding path program 1 times [2018-09-21 18:12:10,571 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:12:10,571 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 18:12:10,585 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 18:12:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:12:10,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:12:10,841 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 18:12:10,861 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 18:12:10,862 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:10,897 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:10,985 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 18:12:10,987 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:12:11,125 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 18:12:11,147 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 18:12:11,148 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:11,159 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:11,174 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 18:12:11,175 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:12:11,735 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 18:12:11,736 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:12:11,755 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:12:11,756 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:12:11,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:12:11,759 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:12:11,759 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:12:11,760 INFO L87 Difference]: Start difference. First operand 184 states and 190 transitions. Second operand 9 states. [2018-09-21 18:12:12,807 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 18:12:19,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:12:19,334 INFO L93 Difference]: Finished difference Result 190 states and 194 transitions. [2018-09-21 18:12:19,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:12:19,335 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2018-09-21 18:12:19,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:12:19,340 INFO L225 Difference]: With dead ends: 190 [2018-09-21 18:12:19,340 INFO L226 Difference]: Without dead ends: 137 [2018-09-21 18:12:19,341 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:12:19,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-09-21 18:12:19,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2018-09-21 18:12:19,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-09-21 18:12:19,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 138 transitions. [2018-09-21 18:12:19,354 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 138 transitions. Word has length 66 [2018-09-21 18:12:19,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:12:19,355 INFO L480 AbstractCegarLoop]: Abstraction has 135 states and 138 transitions. [2018-09-21 18:12:19,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:12:19,355 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 138 transitions. [2018-09-21 18:12:19,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-09-21 18:12:19,358 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:12:19,358 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:12:19,359 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:12:19,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1820862949, now seen corresponding path program 1 times [2018-09-21 18:12:19,360 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:12:19,360 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 18:12:19,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:12:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:12:19,577 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:12:19,631 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 18:12:19,638 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 18:12:19,639 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:19,645 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:19,664 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 18:12:19,665 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:12:19,702 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 18:12:19,710 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 18:12:19,710 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:19,716 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:19,729 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 18:12:19,730 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:12:20,044 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 18:12:20,044 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:12:20,064 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:12:20,064 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:12:20,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:12:20,065 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:12:20,065 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:12:20,065 INFO L87 Difference]: Start difference. First operand 135 states and 138 transitions. Second operand 9 states. [2018-09-21 18:12:20,539 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-21 18:12:27,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:12:27,311 INFO L93 Difference]: Finished difference Result 139 states and 140 transitions. [2018-09-21 18:12:27,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:12:27,313 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2018-09-21 18:12:27,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:12:27,315 INFO L225 Difference]: With dead ends: 139 [2018-09-21 18:12:27,316 INFO L226 Difference]: Without dead ends: 98 [2018-09-21 18:12:27,317 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-21 18:12:27,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-09-21 18:12:27,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-09-21 18:12:27,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-09-21 18:12:27,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2018-09-21 18:12:27,325 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 68 [2018-09-21 18:12:27,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:12:27,326 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2018-09-21 18:12:27,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:12:27,326 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2018-09-21 18:12:27,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-09-21 18:12:27,329 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:12:27,330 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:27,330 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:12:27,330 INFO L82 PathProgramCache]: Analyzing trace with hash 613236977, now seen corresponding path program 1 times [2018-09-21 18:12:27,331 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:12:27,332 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 18:12:27,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:12:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:12:27,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:12:27,794 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 18:12:27,795 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:12:27,817 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:12:27,818 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-21 18:12:27,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-21 18:12:27,819 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-21 18:12:27,819 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:12:27,819 INFO L87 Difference]: Start difference. First operand 98 states and 99 transitions. Second operand 3 states. [2018-09-21 18:12:27,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:12:27,830 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2018-09-21 18:12:27,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-21 18:12:27,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2018-09-21 18:12:27,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:12:27,833 INFO L225 Difference]: With dead ends: 99 [2018-09-21 18:12:27,833 INFO L226 Difference]: Without dead ends: 98 [2018-09-21 18:12:27,834 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-21 18:12:27,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-09-21 18:12:27,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-09-21 18:12:27,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-09-21 18:12:27,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2018-09-21 18:12:27,842 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 79 [2018-09-21 18:12:27,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:12:27,843 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2018-09-21 18:12:27,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-21 18:12:27,844 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2018-09-21 18:12:27,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-09-21 18:12:27,847 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:12:27,847 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:27,848 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:12:27,848 INFO L82 PathProgramCache]: Analyzing trace with hash 899814120, now seen corresponding path program 1 times [2018-09-21 18:12:27,849 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:12:27,849 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 18:12:27,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:12:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:12:28,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:12:28,406 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 15 treesize of output 12 [2018-09-21 18:12:28,419 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 12 treesize of output 11 [2018-09-21 18:12:28,420 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:28,448 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:28,479 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 18:12:28,479 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:11 [2018-09-21 18:12:28,572 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 23 treesize of output 18 [2018-09-21 18:12:28,611 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:12:28,615 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 18 treesize of output 25 [2018-09-21 18:12:28,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:28,634 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:28,648 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 18:12:28,650 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-09-21 18:12:28,727 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 64 treesize of output 48 [2018-09-21 18:12:28,765 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:12:28,769 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 48 treesize of output 28 [2018-09-21 18:12:28,770 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:28,780 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:28,786 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 18:12:28,786 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:64, output treesize:21 [2018-09-21 18:12:29,592 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 18:12:29,592 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:12:29,613 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:12:29,613 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-21 18:12:29,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-21 18:12:29,614 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-21 18:12:29,614 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-21 18:12:29,614 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 10 states. [2018-09-21 18:12:31,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:12:31,129 INFO L93 Difference]: Finished difference Result 98 states and 97 transitions. [2018-09-21 18:12:31,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-21 18:12:31,131 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2018-09-21 18:12:31,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:12:31,133 INFO L225 Difference]: With dead ends: 98 [2018-09-21 18:12:31,133 INFO L226 Difference]: Without dead ends: 98 [2018-09-21 18:12:31,134 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:12:31,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-09-21 18:12:31,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-09-21 18:12:31,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-09-21 18:12:31,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 97 transitions. [2018-09-21 18:12:31,141 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 97 transitions. Word has length 81 [2018-09-21 18:12:31,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:12:31,142 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 97 transitions. [2018-09-21 18:12:31,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-21 18:12:31,142 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 97 transitions. [2018-09-21 18:12:31,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-09-21 18:12:31,146 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:12:31,146 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:31,146 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:12:31,146 INFO L82 PathProgramCache]: Analyzing trace with hash 422042458, now seen corresponding path program 1 times [2018-09-21 18:12:31,147 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:12:31,147 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 18:12:31,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:12:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:12:31,778 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:12:31,825 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 18:12:31,831 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 18:12:31,832 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:31,837 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:31,854 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 18:12:31,855 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:12:31,918 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 18:12:31,937 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 18:12:31,937 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:31,941 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:31,954 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 18:12:31,955 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:12:32,105 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 16 treesize of output 13 [2018-09-21 18:12:32,118 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 13 treesize of output 12 [2018-09-21 18:12:32,118 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:32,125 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:32,142 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 18:12:32,143 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:22 [2018-09-21 18:12:32,214 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 24 treesize of output 19 [2018-09-21 18:12:32,222 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:12:32,228 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 19 treesize of output 26 [2018-09-21 18:12:32,229 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:32,247 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:32,271 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 18:12:32,272 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:29 [2018-09-21 18:12:32,362 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 65 treesize of output 49 [2018-09-21 18:12:32,369 INFO L700 Elim1Store]: detected not equals via solver [2018-09-21 18:12:32,374 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 49 treesize of output 31 [2018-09-21 18:12:32,375 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:32,384 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:32,395 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 18:12:32,396 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:74, output treesize:34 [2018-09-21 18:12:33,523 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 18:12:33,529 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 18:12:33,530 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:33,537 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:33,551 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 18:12:33,551 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-21 18:12:33,692 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 18:12:33,699 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 18:12:33,699 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:12:33,702 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:12:33,715 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 18:12:33,716 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-21 18:12:34,473 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 18:12:34,473 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:12:34,488 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:12:34,488 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-09-21 18:12:34,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-09-21 18:12:34,489 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-09-21 18:12:34,490 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=420, Unknown=0, NotChecked=0, Total=462 [2018-09-21 18:12:34,490 INFO L87 Difference]: Start difference. First operand 98 states and 97 transitions. Second operand 22 states. [2018-09-21 18:12:54,114 WARN L178 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-21 18:12:56,234 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-21 18:12:57,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:12:57,865 INFO L93 Difference]: Finished difference Result 96 states and 95 transitions. [2018-09-21 18:12:57,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-09-21 18:12:57,866 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 97 [2018-09-21 18:12:57,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:12:57,867 INFO L225 Difference]: With dead ends: 96 [2018-09-21 18:12:57,867 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:12:57,868 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=200, Invalid=1870, Unknown=0, NotChecked=0, Total=2070 [2018-09-21 18:12:57,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:12:57,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:12:57,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:12:57,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:12:57,869 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2018-09-21 18:12:57,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:12:57,870 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:12:57,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-09-21 18:12:57,870 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:12:57,870 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:12:57,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:12:57 BoogieIcfgContainer [2018-09-21 18:12:57,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:12:57,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:12:57,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:12:57,877 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:12:57,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:12:10" (3/4) ... [2018-09-21 18:12:57,882 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:12:57,889 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-09-21 18:12:57,890 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:12:57,890 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-09-21 18:12:57,890 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-09-21 18:12:57,890 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:12:57,891 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure modf_double [2018-09-21 18:12:57,900 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2018-09-21 18:12:57,901 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-09-21 18:12:57,901 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-21 18:12:58,019 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:12:58,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:12:58,021 INFO L168 Benchmark]: Toolchain (without parser) took 50340.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.6 MB). Free memory was 951.8 MB in the beginning and 820.7 MB in the end (delta: 131.2 MB). Peak memory consumption was 337.7 MB. Max. memory is 11.5 GB. [2018-09-21 18:12:58,026 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 18:12:58,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 425.87 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 18:12:58,027 INFO L168 Benchmark]: Boogie Preprocessor took 79.94 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:12:58,027 INFO L168 Benchmark]: RCFGBuilder took 1959.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:12:58,027 INFO L168 Benchmark]: TraceAbstraction took 47724.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.0 MB). Free memory was 1.1 GB in the beginning and 828.2 MB in the end (delta: 252.9 MB). Peak memory consumption was 316.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:12:58,028 INFO L168 Benchmark]: Witness Printer took 143.54 ms. Allocated memory is still 1.2 GB. Free memory was 828.2 MB in the beginning and 820.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:12:58,030 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 425.87 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 79.94 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1959.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 47724.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.0 MB). Free memory was 1.1 GB in the beginning and 828.2 MB in the end (delta: 252.9 MB). Peak memory consumption was 316.8 MB. Max. memory is 11.5 GB. * Witness Printer took 143.54 ms. Allocated memory is still 1.2 GB. Free memory was 828.2 MB in the beginning and 820.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 150]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 195 locations, 1 error locations. SAFE Result, 47.6s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 39.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 732 SDtfs, 711 SDslu, 3119 SDs, 0 SdLazy, 944 SolverSat, 43 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 31.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 464 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 10.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192occurred 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 422 NumberOfCodeBlocks, 422 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 416 ConstructedInterpolants, 112 QuantifiedInterpolants, 236917 SizeOfPredicates, 44 NumberOfNonLiveVariables, 845 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...