./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/float-newlib/double_req_bl_1122a.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 66cb741c1a4973eb036ada076f70b691f8ab4b25 ................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/float-newlib/double_req_bl_1122a.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 66cb741c1a4973eb036ada076f70b691f8ab4b25 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:45:16,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:45:16,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:45:16,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:45:16,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:45:16,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:45:16,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:45:16,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:45:16,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:45:16,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:45:16,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:45:16,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:45:16,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:45:16,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:45:16,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:45:16,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:45:16,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:45:16,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:45:16,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:45:16,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:45:16,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:45:16,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:45:16,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:45:16,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:45:16,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:45:16,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:45:16,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:45:16,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:45:16,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:45:16,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:45:16,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:45:16,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:45:16,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:45:16,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:45:16,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:45:16,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:45:16,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:45:16,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:45:16,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:45:16,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:45:16,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:45:16,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:45:16,717 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:45:16,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:45:16,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:45:16,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:45:16,720 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:45:16,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:45:16,720 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:45:16,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:45:16,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:45:16,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:45:16,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:45:16,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:45:16,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:45:16,722 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:45:16,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:45:16,723 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:45:16,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:45:16,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:45:16,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:45:16,724 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:45:16,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:45:16,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:45:16,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:45:16,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:45:16,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:45:16,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:45:16,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:45:16,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:45:16,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 66cb741c1a4973eb036ada076f70b691f8ab4b25 [2019-11-27 23:45:17,028 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:45:17,045 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:45:17,049 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:45:17,051 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:45:17,051 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:45:17,053 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2019-11-27 23:45:17,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9792c1e0/6b5f5b24faa24ef4914352dbdaf9dad4/FLAG8ea8cce6d [2019-11-27 23:45:17,625 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:45:17,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2019-11-27 23:45:17,639 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9792c1e0/6b5f5b24faa24ef4914352dbdaf9dad4/FLAG8ea8cce6d [2019-11-27 23:45:17,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9792c1e0/6b5f5b24faa24ef4914352dbdaf9dad4 [2019-11-27 23:45:18,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:45:18,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:45:18,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:18,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:45:18,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:45:18,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:17" (1/1) ... [2019-11-27 23:45:18,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@454e1e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:18, skipping insertion in model container [2019-11-27 23:45:18,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:17" (1/1) ... [2019-11-27 23:45:18,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:45:18,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:45:18,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:18,363 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:45:18,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:18,452 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:45:18,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:18 WrapperNode [2019-11-27 23:45:18,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:18,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:18,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:45:18,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:45:18,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:18" (1/1) ... [2019-11-27 23:45:18,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:18" (1/1) ... [2019-11-27 23:45:18,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:18,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:45:18,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:45:18,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:45:18,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:18" (1/1) ... [2019-11-27 23:45:18,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:18" (1/1) ... [2019-11-27 23:45:18,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:18" (1/1) ... [2019-11-27 23:45:18,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:18" (1/1) ... [2019-11-27 23:45:18,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:18" (1/1) ... [2019-11-27 23:45:18,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:18" (1/1) ... [2019-11-27 23:45:18,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:18" (1/1) ... [2019-11-27 23:45:18,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:45:18,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:45:18,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:45:18,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:45:18,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:18" (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 [2019-11-27 23:45:18,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:45:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:45:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-27 23:45:18,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-27 23:45:18,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:45:18,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:45:18,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:45:18,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-27 23:45:18,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:45:19,248 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:45:19,249 INFO L297 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-27 23:45:19,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:19 BoogieIcfgContainer [2019-11-27 23:45:19,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:45:19,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:45:19,253 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:45:19,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:45:19,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:45:17" (1/3) ... [2019-11-27 23:45:19,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1077e8dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:19, skipping insertion in model container [2019-11-27 23:45:19,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:18" (2/3) ... [2019-11-27 23:45:19,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1077e8dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:19, skipping insertion in model container [2019-11-27 23:45:19,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:19" (3/3) ... [2019-11-27 23:45:19,261 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2019-11-27 23:45:19,271 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:45:19,279 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:45:19,292 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:45:19,315 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:45:19,316 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:45:19,316 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:45:19,316 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:45:19,316 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:45:19,317 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:45:19,317 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:45:19,317 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:45:19,334 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-11-27 23:45:19,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-27 23:45:19,342 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:19,343 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:19,344 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:19,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:19,350 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2019-11-27 23:45:19,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:45:19,358 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195359745] [2019-11-27 23:45:19,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:45:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:19,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:19,476 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195359745] [2019-11-27 23:45:19,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:19,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 23:45:19,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444192917] [2019-11-27 23:45:19,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:45:19,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:45:19,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:45:19,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:45:19,496 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-11-27 23:45:19,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:19,519 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2019-11-27 23:45:19,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:45:19,521 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-27 23:45:19,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:19,533 INFO L225 Difference]: With dead ends: 108 [2019-11-27 23:45:19,534 INFO L226 Difference]: Without dead ends: 52 [2019-11-27 23:45:19,538 INFO L630 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 [2019-11-27 23:45:19,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-27 23:45:19,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-27 23:45:19,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-27 23:45:19,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2019-11-27 23:45:19,581 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2019-11-27 23:45:19,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:19,582 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2019-11-27 23:45:19,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:45:19,582 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2019-11-27 23:45:19,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:45:19,583 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:19,583 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:19,584 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:19,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:19,584 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2019-11-27 23:45:19,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:45:19,585 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763670330] [2019-11-27 23:45:19,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:45:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:45:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:45:19,732 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:45:19,733 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:45:19,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:45:19 BoogieIcfgContainer [2019-11-27 23:45:19,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:45:19,767 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:45:19,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:45:19,768 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:45:19,768 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:19" (3/4) ... [2019-11-27 23:45:19,772 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:45:19,772 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:45:19,775 INFO L168 Benchmark]: Toolchain (without parser) took 1771.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -100.6 MB). Peak memory consumption was 38.4 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:19,776 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:19,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -173.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:19,778 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:19,778 INFO L168 Benchmark]: Boogie Preprocessor took 74.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:19,779 INFO L168 Benchmark]: RCFGBuilder took 646.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:19,780 INFO L168 Benchmark]: TraceAbstraction took 514.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:19,781 INFO L168 Benchmark]: Witness Printer took 4.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:19,785 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 445.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -173.8 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 76.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 646.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 514.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 176]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={3:0}] [L170] double x = 1.0 / 0.0; [L171] double y = __VERIFIER_nondet_double(); [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={3:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L172] double res = fmod_double(x, y); [L16] return x != x; VAL [one_fmod=1, Zero_fmod={3:0}] [L175] COND TRUE !isnan_double(res) [L176] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-30f4e4a [2019-11-27 23:45:21,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:45:21,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:45:21,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:45:21,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:45:21,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:45:21,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:45:21,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:45:21,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:45:21,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:45:21,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:45:21,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:45:21,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:45:21,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:45:21,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:45:21,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:45:21,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:45:21,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:45:21,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:45:21,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:45:21,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:45:21,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:45:21,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:45:21,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:45:21,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:45:21,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:45:21,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:45:21,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:45:21,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:45:21,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:45:21,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:45:21,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:45:21,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:45:21,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:45:21,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:45:21,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:45:21,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:45:21,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:45:21,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:45:21,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:45:21,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:45:21,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:45:21,870 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:45:21,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:45:21,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:45:21,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:45:21,876 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:45:21,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:45:21,876 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:45:21,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:45:21,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:45:21,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:45:21,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:45:21,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:45:21,879 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:45:21,880 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:45:21,880 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:45:21,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:45:21,880 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:45:21,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:45:21,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:45:21,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:45:21,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:45:21,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:45:21,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:45:21,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:45:21,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:45:21,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:45:21,884 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:45:21,884 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:45:21,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:45:21,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:45:21,885 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 66cb741c1a4973eb036ada076f70b691f8ab4b25 [2019-11-27 23:45:22,200 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:45:22,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:45:22,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:45:22,224 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:45:22,225 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:45:22,226 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2019-11-27 23:45:22,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d166801/224a4c62ee364beb9885feb4c42be042/FLAG9136d5cb6 [2019-11-27 23:45:22,775 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:45:22,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2019-11-27 23:45:22,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d166801/224a4c62ee364beb9885feb4c42be042/FLAG9136d5cb6 [2019-11-27 23:45:23,121 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d166801/224a4c62ee364beb9885feb4c42be042 [2019-11-27 23:45:23,125 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:45:23,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:45:23,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:23,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:45:23,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:45:23,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:23" (1/1) ... [2019-11-27 23:45:23,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6284b3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:23, skipping insertion in model container [2019-11-27 23:45:23,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:23" (1/1) ... [2019-11-27 23:45:23,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:45:23,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:45:23,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:23,565 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:45:23,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:23,653 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:45:23,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:23 WrapperNode [2019-11-27 23:45:23,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:23,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:23,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:45:23,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:45:23,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:23" (1/1) ... [2019-11-27 23:45:23,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:23" (1/1) ... [2019-11-27 23:45:23,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:23,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:45:23,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:45:23,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:45:23,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:23" (1/1) ... [2019-11-27 23:45:23,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:23" (1/1) ... [2019-11-27 23:45:23,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:23" (1/1) ... [2019-11-27 23:45:23,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:23" (1/1) ... [2019-11-27 23:45:23,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:23" (1/1) ... [2019-11-27 23:45:23,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:23" (1/1) ... [2019-11-27 23:45:23,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:23" (1/1) ... [2019-11-27 23:45:23,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:45:23,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:45:23,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:45:23,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:45:23,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:23" (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 [2019-11-27 23:45:23,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-27 23:45:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-27 23:45:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:45:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-27 23:45:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-27 23:45:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:45:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:45:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-27 23:45:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:45:27,646 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:45:27,646 INFO L297 CfgBuilder]: Removed 22 assume(true) statements. [2019-11-27 23:45:27,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:27 BoogieIcfgContainer [2019-11-27 23:45:27,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:45:27,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:45:27,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:45:27,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:45:27,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:45:23" (1/3) ... [2019-11-27 23:45:27,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2201ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:27, skipping insertion in model container [2019-11-27 23:45:27,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:23" (2/3) ... [2019-11-27 23:45:27,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2201ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:27, skipping insertion in model container [2019-11-27 23:45:27,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:27" (3/3) ... [2019-11-27 23:45:27,656 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2019-11-27 23:45:27,664 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:45:27,672 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:45:27,681 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:45:27,704 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:45:27,704 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:45:27,704 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:45:27,704 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:45:27,705 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:45:27,705 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:45:27,705 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:45:27,705 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:45:27,719 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-11-27 23:45:27,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-27 23:45:27,726 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:27,727 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:27,727 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:27,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:27,734 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2019-11-27 23:45:27,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:27,747 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308423468] [2019-11-27 23:45:27,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:45:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:28,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-27 23:45:28,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:28,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:28,893 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:28,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:28,900 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308423468] [2019-11-27 23:45:28,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:28,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-27 23:45:28,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354268072] [2019-11-27 23:45:28,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:45:28,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:28,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:45:28,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:45:28,925 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-11-27 23:45:28,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:28,950 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2019-11-27 23:45:28,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:45:28,952 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-27 23:45:28,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:28,964 INFO L225 Difference]: With dead ends: 108 [2019-11-27 23:45:28,965 INFO L226 Difference]: Without dead ends: 52 [2019-11-27 23:45:28,968 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:45:28,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-27 23:45:29,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-27 23:45:29,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-27 23:45:29,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2019-11-27 23:45:29,010 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2019-11-27 23:45:29,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:29,011 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2019-11-27 23:45:29,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:45:29,011 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2019-11-27 23:45:29,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:45:29,012 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:29,012 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:29,227 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:45:29,228 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:29,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:29,229 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2019-11-27 23:45:29,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:29,231 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583338943] [2019-11-27 23:45:29,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-27 23:45:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:30,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-27 23:45:30,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:32,761 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53)) ULTIMATE.start_fmod_double_~y))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |c_ULTIMATE.start_fmod_double_#res|)) is different from false [2019-11-27 23:45:34,011 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:45:36,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:36,554 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:40,225 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-11-27 23:45:42,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:42,171 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583338943] [2019-11-27 23:45:42,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:42,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-11-27 23:45:42,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381255168] [2019-11-27 23:45:42,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-27 23:45:42,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:42,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-27 23:45:42,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=56, Unknown=2, NotChecked=30, Total=110 [2019-11-27 23:45:42,175 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 11 states. [2019-11-27 23:45:45,907 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) (_ +zero 11 53)) c_ULTIMATE.start_fmod_double_~x) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-11-27 23:45:58,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:58,841 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2019-11-27 23:45:58,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-27 23:45:58,882 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2019-11-27 23:45:58,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:58,884 INFO L225 Difference]: With dead ends: 57 [2019-11-27 23:45:58,884 INFO L226 Difference]: Without dead ends: 52 [2019-11-27 23:45:58,885 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=37, Invalid=82, Unknown=3, NotChecked=60, Total=182 [2019-11-27 23:45:58,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-11-27 23:45:58,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-11-27 23:45:58,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-27 23:45:58,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2019-11-27 23:45:58,894 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2019-11-27 23:45:58,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:58,895 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2019-11-27 23:45:58,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-27 23:45:58,895 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2019-11-27 23:45:58,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-27 23:45:58,896 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:58,896 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:59,100 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 23:45:59,101 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:59,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:59,102 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2019-11-27 23:45:59,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:59,104 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386944208] [2019-11-27 23:45:59,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:45:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:59,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-27 23:45:59,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:59,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:59,410 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:59,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:59,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386944208] [2019-11-27 23:45:59,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:59,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2019-11-27 23:45:59,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088189533] [2019-11-27 23:45:59,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-27 23:45:59,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:59,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-27 23:45:59,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-27 23:45:59,539 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 7 states. [2019-11-27 23:45:59,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:59,658 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2019-11-27 23:45:59,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 23:45:59,659 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2019-11-27 23:45:59,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:59,660 INFO L225 Difference]: With dead ends: 52 [2019-11-27 23:45:59,660 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:45:59,661 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-27 23:45:59,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:45:59,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:45:59,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:45:59,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:45:59,663 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-27 23:45:59,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:59,663 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:45:59,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-27 23:45:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:45:59,664 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:45:59,865 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-27 23:45:59,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:46:04,716 WARN L192 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2019-11-27 23:46:04,741 INFO L246 CegarLoopResult]: For program point L118(lines 118 119) no Hoare annotation was computed. [2019-11-27 23:46:04,742 INFO L246 CegarLoopResult]: For program point L118-2(lines 23 161) no Hoare annotation was computed. [2019-11-27 23:46:04,742 INFO L246 CegarLoopResult]: For program point L69-2(lines 69 70) no Hoare annotation was computed. [2019-11-27 23:46:04,742 INFO L242 CegarLoopResult]: At program point L69-3(lines 69 70) the Hoare annotation is: false [2019-11-27 23:46:04,742 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:46:04,742 INFO L246 CegarLoopResult]: For program point L152(lines 152 157) no Hoare annotation was computed. [2019-11-27 23:46:04,743 INFO L246 CegarLoopResult]: For program point L152-1(lines 140 159) no Hoare annotation was computed. [2019-11-27 23:46:04,743 INFO L246 CegarLoopResult]: For program point L152-2(lines 152 157) no Hoare annotation was computed. [2019-11-27 23:46:04,743 INFO L246 CegarLoopResult]: For program point L53(lines 23 161) no Hoare annotation was computed. [2019-11-27 23:46:04,743 INFO L246 CegarLoopResult]: For program point L120-1(lines 23 161) no Hoare annotation was computed. [2019-11-27 23:46:04,744 INFO L246 CegarLoopResult]: For program point L54(lines 54 60) no Hoare annotation was computed. [2019-11-27 23:46:04,744 INFO L246 CegarLoopResult]: For program point L104(lines 104 105) no Hoare annotation was computed. [2019-11-27 23:46:04,744 INFO L246 CegarLoopResult]: For program point L104-2(lines 101 115) no Hoare annotation was computed. [2019-11-27 23:46:04,744 INFO L246 CegarLoopResult]: For program point L55-2(lines 55 56) no Hoare annotation was computed. [2019-11-27 23:46:04,744 INFO L242 CegarLoopResult]: At program point L55-3(lines 55 56) the Hoare annotation is: false [2019-11-27 23:46:04,744 INFO L242 CegarLoopResult]: At program point L106-1(lines 101 115) the Hoare annotation is: false [2019-11-27 23:46:04,744 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:46:04,745 INFO L246 CegarLoopResult]: For program point L91(lines 91 97) no Hoare annotation was computed. [2019-11-27 23:46:04,745 INFO L246 CegarLoopResult]: For program point L91-2(lines 87 98) no Hoare annotation was computed. [2019-11-27 23:46:04,745 INFO L246 CegarLoopResult]: For program point L58-2(lines 58 59) no Hoare annotation was computed. [2019-11-27 23:46:04,745 INFO L242 CegarLoopResult]: At program point L58-3(lines 58 59) the Hoare annotation is: false [2019-11-27 23:46:04,745 INFO L246 CegarLoopResult]: For program point L175(lines 175 178) no Hoare annotation was computed. [2019-11-27 23:46:04,745 INFO L246 CegarLoopResult]: For program point L142(lines 142 151) no Hoare annotation was computed. [2019-11-27 23:46:04,745 INFO L246 CegarLoopResult]: For program point L43(lines 43 45) no Hoare annotation was computed. [2019-11-27 23:46:04,747 INFO L246 CegarLoopResult]: For program point L27-1(lines 27 32) no Hoare annotation was computed. [2019-11-27 23:46:04,747 INFO L242 CegarLoopResult]: At program point L27-2(lines 27 32) the Hoare annotation is: (and (= (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53)) ULTIMATE.start_fmod_double_~x) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-27 23:46:04,748 INFO L246 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2019-11-27 23:46:04,748 INFO L246 CegarLoopResult]: For program point L110(lines 110 111) no Hoare annotation was computed. [2019-11-27 23:46:04,748 INFO L242 CegarLoopResult]: At program point L160(lines 23 161) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) [2019-11-27 23:46:04,748 INFO L242 CegarLoopResult]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2019-11-27 23:46:04,749 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:46:04,749 INFO L246 CegarLoopResult]: For program point L127-3(lines 23 161) no Hoare annotation was computed. [2019-11-27 23:46:04,749 INFO L246 CegarLoopResult]: For program point L145(lines 145 151) no Hoare annotation was computed. [2019-11-27 23:46:04,750 INFO L246 CegarLoopResult]: For program point L79(lines 79 85) no Hoare annotation was computed. [2019-11-27 23:46:04,751 INFO L246 CegarLoopResult]: For program point L46(lines 46 51) no Hoare annotation was computed. [2019-11-27 23:46:04,751 INFO L246 CegarLoopResult]: For program point L79-2(lines 23 161) no Hoare annotation was computed. [2019-11-27 23:46:04,751 INFO L246 CegarLoopResult]: For program point L46-2(lines 23 161) no Hoare annotation was computed. [2019-11-27 23:46:04,751 INFO L246 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-11-27 23:46:04,752 INFO L246 CegarLoopResult]: For program point L64(lines 23 161) no Hoare annotation was computed. [2019-11-27 23:46:04,752 INFO L249 CegarLoopResult]: At program point L180(lines 163 181) the Hoare annotation is: true [2019-11-27 23:46:04,752 INFO L246 CegarLoopResult]: For program point L65(lines 65 71) no Hoare annotation was computed. [2019-11-27 23:46:04,752 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:46:04,753 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 176) no Hoare annotation was computed. [2019-11-27 23:46:04,753 INFO L246 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-11-27 23:46:04,753 INFO L242 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-11-27 23:46:04,753 INFO L246 CegarLoopResult]: For program point L132(lines 132 159) no Hoare annotation was computed. [2019-11-27 23:46:04,754 INFO L246 CegarLoopResult]: For program point L33(lines 33 38) no Hoare annotation was computed. [2019-11-27 23:46:04,754 INFO L246 CegarLoopResult]: For program point L33-1(lines 23 161) no Hoare annotation was computed. [2019-11-27 23:46:04,754 INFO L246 CegarLoopResult]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2019-11-27 23:46:04,754 INFO L246 CegarLoopResult]: For program point L33-2(lines 33 38) no Hoare annotation was computed. [2019-11-27 23:46:04,755 INFO L242 CegarLoopResult]: At program point L66-3(lines 66 67) the Hoare annotation is: false [2019-11-27 23:46:04,755 INFO L246 CegarLoopResult]: For program point L134-1(lines 134 139) no Hoare annotation was computed. [2019-11-27 23:46:04,755 INFO L246 CegarLoopResult]: For program point L101-1(lines 101 115) no Hoare annotation was computed. [2019-11-27 23:46:04,755 INFO L242 CegarLoopResult]: At program point L134-2(lines 134 139) the Hoare annotation is: false [2019-11-27 23:46:04,755 INFO L246 CegarLoopResult]: For program point L101-3(lines 101 115) no Hoare annotation was computed. [2019-11-27 23:46:04,779 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:46:04,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:46:04,781 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:46:04,781 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:46:04,783 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:46:04,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:46:04,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:46:04,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:46:04,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:46:04 BoogieIcfgContainer [2019-11-27 23:46:04,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:46:04,787 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:46:04,788 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:46:04,788 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:46:04,789 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:27" (3/4) ... [2019-11-27 23:46:04,793 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:46:04,807 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-27 23:46:04,808 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-27 23:46:04,808 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 23:46:04,858 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:46:04,859 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:46:04,861 INFO L168 Benchmark]: Toolchain (without parser) took 41734.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 960.4 MB in the beginning and 977.2 MB in the end (delta: -16.9 MB). Peak memory consumption was 122.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:46:04,861 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:46:04,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 526.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:46:04,863 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:46:04,867 INFO L168 Benchmark]: Boogie Preprocessor took 65.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:46:04,868 INFO L168 Benchmark]: RCFGBuilder took 3855.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.0 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. [2019-11-27 23:46:04,869 INFO L168 Benchmark]: TraceAbstraction took 37138.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.8 MB in the end (delta: 100.8 MB). Peak memory consumption was 100.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:46:04,869 INFO L168 Benchmark]: Witness Printer took 71.51 ms. Allocated memory is still 1.2 GB. Free memory was 983.8 MB in the beginning and 977.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:46:04,876 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 526.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3855.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.0 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 37138.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.8 MB in the end (delta: 100.8 MB). Peak memory consumption was 100.8 MB. Max. memory is 11.5 GB. * Witness Printer took 71.51 ms. Allocated memory is still 1.2 GB. Free memory was 983.8 MB in the beginning and 977.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 176]: 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 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) && 1bv32 == \result - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant [2019-11-27 23:46:04,889 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:46:04,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:46:04,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:46:04,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:46:04,891 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:46:04,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:46:04,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:46:04,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 32.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 16.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.8s, HoareTripleCheckerStatistics: 159 SDtfs, 11 SDslu, 402 SDs, 0 SdLazy, 29 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 25.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 32 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 4.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 14 QuantifiedInterpolants, 5264 SizeOfPredicates, 19 NumberOfNonLiveVariables, 185 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...